Kalafina
type: MusicGroup
genre: anime
genre: j-pop
genre: j-rock
popularity: 48
followers: 300083
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xb5347a9a49a886b088dc771a1415bd6dac1c8b7e9fa176c2e269d7998b267cc6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73906351-30ad-42e6-bec2-51d36626354b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73906351-30ad-42e6-bec2-51d36626354b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73906351-30ad-42e6-bec2-51d36626354b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5347a9a49a886b088dc771a1415bd6dac1c8b7e9fa176c2e269d7998b267cc6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73906351-30ad-42e6-bec2-51d36626354b.json and https://artists.proofprofile.net/proofs/artist/73906351-30ad-42e6-bec2-51d36626354b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
  track: oblivious
    type: MusicRecording
    duration: PT4M24S
    duration ms: 264400
    explicit: false
    by artist: Kalafina
    in album: Kalafina All Time Best 2008-2018
      type: MusicAlbum
      date published: 2018-10-24
    isrc code: JPU900702341
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-04T13:57:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/953528
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/5OQWW2T8gpAT5PLPptRnBs.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OQWW2T8gpAT5PLPptRnBs
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T15:41:10Z
    additional property: OTSCanonicalRecord
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OQWW2T8gpAT5PLPptRnBs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OQWW2T8gpAT5PLPptRnBs.
      date published: 2026-06-13T15:41:10Z
  track: 君が光に変えて行く
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284893
    explicit: false
    by artist: Kalafina
    in album: Kalafina All Time Best 2008-2018
      type: MusicAlbum
      date published: 2018-10-24
    isrc code: JPU900702342
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-07T06:17:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 954130
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/954130
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/5gpLS6XbcoDQC3fRT06eMW.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gpLS6XbcoDQC3fRT06eMW
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-17T20:40:24Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329","isrc":"JPU900702342","name":"君が光に変えて行く","registered_at":"2026-06-07T06:17:27Z","spotify_id":"5gpLS6XbcoDQC3fRT06eMW","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:40:24Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5gpLS6XbcoDQC3fRT06eMW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gpLS6XbcoDQC3fRT06eMW.
      date published: 2026-06-17T20:40:24Z
      text: {"copyright_id":"0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329","isrc":"JPU900702342","name":"君が光に変えて行く","registered_at":"2026-06-07T06:17:27Z","spotify_id":"5gpLS6XbcoDQC3fRT06eMW","type":"track"}
  track: 傷跡
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282026
    explicit: false
    by artist: Kalafina
    in album: Kalafina All Time Best 2008-2018
      type: MusicAlbum
      date published: 2018-10-24
    isrc code: JPU900702343
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-06T21:39:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/55wLMjGjDSumUjgQKlAmBu.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55wLMjGjDSumUjgQKlAmBu
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
      value: {"copyright_id":"0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f","isrc":"JPU900702343","name":"傷跡","registered_at":"2026-06-06T21:39:08Z","spotify_id":"55wLMjGjDSumUjgQKlAmBu","type":"track"}
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/55wLMjGjDSumUjgQKlAmBu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55wLMjGjDSumUjgQKlAmBu.
      date published: 2026-07-02T03:55:08Z
      text: {"copyright_id":"0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f","isrc":"JPU900702343","name":"傷跡","registered_at":"2026-06-06T21:39:08Z","spotify_id":"55wLMjGjDSumUjgQKlAmBu","type":"track"}
  track: sprinter
    type: MusicRecording
    duration: PT5M4S
    duration ms: 304826
    explicit: false
    by artist: Kalafina
    in album: Kalafina All Time Best 2008-2018
      type: MusicAlbum
      date published: 2018-10-24
    isrc code: JPU900801526
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-06T02:32:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSRecordURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSCanonicalRecord
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
  track: ARIA
  track: fairytale
  track: seventh heaven
  track: Lacrimosa
  track: storia
  track: progressive
  track: 光の旋律
  track: 星の謡
  track: I have a dream
  track: 輝く空の静寂には
  track: snow falling
  track: symphonia
  track: to the beginning
  track: 満天
  track: moonfesta〜ムーンフェスタ〜
  track: ひかりふる
  track: 未来
  track: Magia[quattro]
  track: 夢の大地
  track: アレルヤ
  track: dolce
  track: 君の銀の庭
  track: misterioso
  track: heavenly blue
  track: believe
  track: ring your bell
  track: One Light
  track: far on the water
  track: blaze
  track: into the world
  track: メルヒェン
  track: 百火撩乱
album: Winter Acoustic “Kalafina with Strings”
album: far on the water
album: THE BEST “Red”
album: THE BEST “Blue”
album: Consolation
album: Kalafina 5th Anniversary Live Selection 2009-2012
album: After Eden
album: Red Moon
album: Seventh Heaven
album: 百火撩乱
album: 百火撩乱 TVサイズ
album: into the world/メルヒェン
album: blaze
album: One Light
album: One Light〜TV size〜
album: ring your bell
album: believe
album: 君の銀の庭
album: アレルヤ
album: ひかりふる
album: moonfesta〜ムーンフェスタ〜
album: to the beginning
album: symphonia TV ver
album: Magia
album: 輝く空の静寂には
album: 光の旋律
album: progressive
album: storia
album: Lacrimosa
album: sprinter
album: Re/oblivious
album: sprinter/ARIA
album: oblivious
album: fairytale
album: 「魔法少女まどか☆マギカ」 Music Collection
album: 「魔法少女まどか☆マギカ」 Ultimate Best
album: ANIME HITS - the originals
album: ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
track: Lacrimosa
track: storia
track: 光の旋律
track: red moon
track: misterioso
track: Magia[quattro]
track: 君の銀の庭
track: 未来
track: 百火撩乱
track: カンタンカタン
track: Kyrie
track: 追憶
track: ひかりふる
track: fantasia
track: intermezzo
track: 星の謡
track: progressive
track: I have a dream
track: テトテトメトメ
track: 闇の唄

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953520

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953520

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/5EGNhvH7lPQUtNhOARrKrV.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EGNhvH7lPQUtNhOARrKrV

OTSTimestamp
type: PropertyValue
value: 2026-06-13T13:32:09Z

OTSCanonicalRecord
type: PropertyValue

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5EGNhvH7lPQUtNhOARrKrV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5EGNhvH7lPQUtNhOARrKrV.
date published: 2026-06-13T13:32:09Z

ARIA
type: MusicRecording
duration: PT5M25S
duration ms: 325200
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900801527
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:05:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1O7RoL3n0VAozmnhbv6XfK.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1O7RoL3n0VAozmnhbv6XfK
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1O7RoL3n0VAozmnhbv6XfK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1O7RoL3n0VAozmnhbv6XfK.
  date published: 2026-07-02T03:55:08Z

fairytale
type: MusicRecording
duration: PT5M15S
duration ms: 315453
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900802701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:21:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d8faa5afd03a31463a0301f16d7e3ac301b99fa59ff12dd700f8d40862c82de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0xKqIQHdwy1eqURoF9yxPe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0xKqIQHdwy1eqURoF9yxPe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8faa5afd03a31463a0301f16d7e3ac301b99fa59ff12dd700f8d40862c82de. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0xKqIQHdwy1eqURoF9yxPe.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0xKqIQHdwy1eqURoF9yxPe.
  date published: 2026-07-02T03:55:08Z

seventh heaven
type: MusicRecording
duration: PT6M14S
duration ms: 374386
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900900027
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T01:53:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6RgU84wCgcaxkYUKVbhW2R.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RgU84wCgcaxkYUKVbhW2R
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168","isrc":"JPU900900027","name":"seventh heaven","registered_at":"2026-06-08T01:53:17Z","spotify_id":"6RgU84wCgcaxkYUKVbhW2R","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6RgU84wCgcaxkYUKVbhW2R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RgU84wCgcaxkYUKVbhW2R.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168","isrc":"JPU900900027","name":"seventh heaven","registered_at":"2026-06-08T01:53:17Z","spotify_id":"6RgU84wCgcaxkYUKVbhW2R","type":"track"}

Lacrimosa
type: MusicRecording
duration: PT4M15S
duration ms: 255240
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900900028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:27:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0qqEk9FD1HbDPTJe9nYq73.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qqEk9FD1HbDPTJe9nYq73
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0qqEk9FD1HbDPTJe9nYq73.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qqEk9FD1HbDPTJe9nYq73.
  date published: 2026-07-02T03:55:08Z

storia
type: MusicRecording
duration: PT3M39S
duration ms: 219600
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900900744
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T02:36:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6wqv1mZ0wwA9fb3ImsQaT2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6wqv1mZ0wwA9fb3ImsQaT2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6wqv1mZ0wwA9fb3ImsQaT2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6wqv1mZ0wwA9fb3ImsQaT2.
  date published: 2026-07-02T03:55:08Z

progressive
type: MusicRecording
duration: PT5M45S
duration ms: 345026
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900901464
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:36:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05f83639d704cb2a03aada1584b1b5b7e0991a3fa5ad1345ca095bc08df921b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1pWbp6zVhVgJ4btEHLTSHv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1pWbp6zVhVgJ4btEHLTSHv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f83639d704cb2a03aada1584b1b5b7e0991a3fa5ad1345ca095bc08df921b2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1pWbp6zVhVgJ4btEHLTSHv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1pWbp6zVhVgJ4btEHLTSHv.
  date published: 2026-06-13T13:32:09Z

光の旋律
type: MusicRecording
duration: PT6M13S
duration ms: 373800
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU900901981
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:06:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4kapKtjdu0ILha72HkvMC6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kapKtjdu0ILha72HkvMC6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"4kapKtjdu0ILha72HkvMC6","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kapKtjdu0ILha72HkvMC6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kapKtjdu0ILha72HkvMC6.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"4kapKtjdu0ILha72HkvMC6","type":"track"}

星の謡
type: MusicRecording
duration: PT4M49S
duration ms: 289466
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901000107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T11:48:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1PQ354Vjwvoo7YK416anBl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PQ354Vjwvoo7YK416anBl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db","isrc":"JPU901000107","name":"星の謡","registered_at":"2026-06-18T11:48:20Z","spotify_id":"1PQ354Vjwvoo7YK416anBl","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PQ354Vjwvoo7YK416anBl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PQ354Vjwvoo7YK416anBl.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db","isrc":"JPU901000107","name":"星の謡","registered_at":"2026-06-18T11:48:20Z","spotify_id":"1PQ354Vjwvoo7YK416anBl","type":"track"}

I have a dream
type: MusicRecording
duration: PT5M58S
duration ms: 358053
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901000061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:41:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7i2kDAoYI0xX1MdG3szYSF.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7i2kDAoYI0xX1MdG3szYSF
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af","isrc":"JPU901000061","name":"I have a dream","registered_at":"2026-06-19T07:41:19Z","spotify_id":"7i2kDAoYI0xX1MdG3szYSF","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7i2kDAoYI0xX1MdG3szYSF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7i2kDAoYI0xX1MdG3szYSF.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af","isrc":"JPU901000061","name":"I have a dream","registered_at":"2026-06-19T07:41:19Z","spotify_id":"7i2kDAoYI0xX1MdG3szYSF","type":"track"}

輝く空の静寂には
type: MusicRecording
duration: PT4M15S
duration ms: 255053
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901001121
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:44:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5ppWgMElszi0XjqVdQH5ua.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ppWgMElszi0XjqVdQH5ua
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"5ppWgMElszi0XjqVdQH5ua","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ppWgMElszi0XjqVdQH5ua.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ppWgMElszi0XjqVdQH5ua.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"5ppWgMElszi0XjqVdQH5ua","type":"track"}

snow falling
type: MusicRecording
duration: PT4M41S
duration ms: 281080
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901002001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T02:07:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0fZFHfogGNBORHLmSXvt2q.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fZFHfogGNBORHLmSXvt2q
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499","isrc":"JPU901002001","name":"snow falling","registered_at":"2026-06-10T02:07:35Z","spotify_id":"0fZFHfogGNBORHLmSXvt2q","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0fZFHfogGNBORHLmSXvt2q.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fZFHfogGNBORHLmSXvt2q.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499","isrc":"JPU901002001","name":"snow falling","registered_at":"2026-06-10T02:07:35Z","spotify_id":"0fZFHfogGNBORHLmSXvt2q","type":"track"}

symphonia
type: MusicRecording
duration: PT5M46S
duration ms: 346213
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901100950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T06:06:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13d31789fe78f5f965dcc4343c538fb2a602e1bd2a5d9f0ca2f8fbcb2968adeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/45jQCOzWo6m6l8MNVUFa3w.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/45jQCOzWo6m6l8MNVUFa3w
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d31789fe78f5f965dcc4343c538fb2a602e1bd2a5d9f0ca2f8fbcb2968adeb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/45jQCOzWo6m6l8MNVUFa3w.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/45jQCOzWo6m6l8MNVUFa3w.
  date published: 2026-07-02T03:30:09Z

to the beginning
type: MusicRecording
duration: PT4M17S
duration ms: 257560
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901200381
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:09:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7Fn39khTcovMslPdNxx7b8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Fn39khTcovMslPdNxx7b8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"7Fn39khTcovMslPdNxx7b8","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7Fn39khTcovMslPdNxx7b8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Fn39khTcovMslPdNxx7b8.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"7Fn39khTcovMslPdNxx7b8","type":"track"}

満天
type: MusicRecording
duration: PT5M15S
duration ms: 315746
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901200382
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T07:11:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5npSsCC2uddPMOZGoomIs4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5npSsCC2uddPMOZGoomIs4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"5npSsCC2uddPMOZGoomIs4","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5npSsCC2uddPMOZGoomIs4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5npSsCC2uddPMOZGoomIs4.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"5npSsCC2uddPMOZGoomIs4","type":"track"}

moonfesta〜ムーンフェスタ〜
type: MusicRecording
duration: PT4M29S
duration ms: 269160
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901200761
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T21:09:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6EBVKqnTd2O50lSOWZBCGw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6EBVKqnTd2O50lSOWZBCGw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"6EBVKqnTd2O50lSOWZBCGw","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6EBVKqnTd2O50lSOWZBCGw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6EBVKqnTd2O50lSOWZBCGw.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"6EBVKqnTd2O50lSOWZBCGw","type":"track"}

ひかりふる
type: MusicRecording
duration: PT4M54S
duration ms: 294693
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901201401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:43:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6e6xydbcKp3UJuRRdSbdwu.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6e6xydbcKp3UJuRRdSbdwu
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"6e6xydbcKp3UJuRRdSbdwu","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6e6xydbcKp3UJuRRdSbdwu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6e6xydbcKp3UJuRRdSbdwu.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"6e6xydbcKp3UJuRRdSbdwu","type":"track"}

未来
type: MusicRecording
duration: PT4M32S
duration ms: 272746
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901201402
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:08:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7qnW1xK7zC4pEWhm45grKn.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7qnW1xK7zC4pEWhm45grKn
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"7qnW1xK7zC4pEWhm45grKn","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7qnW1xK7zC4pEWhm45grKn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7qnW1xK7zC4pEWhm45grKn.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"7qnW1xK7zC4pEWhm45grKn","type":"track"}

Magia[quattro]
type: MusicRecording
duration: PT5M15S
duration ms: 315946
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901201403
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:01:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea4bc18ffa039fe65e48dec5a36ed52f2213e8b8f751147262287f40a6761cc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/74AmJhZbJzmFFy15M97Dya.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/74AmJhZbJzmFFy15M97Dya
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4bc18ffa039fe65e48dec5a36ed52f2213e8b8f751147262287f40a6761cc2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/74AmJhZbJzmFFy15M97Dya.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/74AmJhZbJzmFFy15M97Dya.
  date published: 2026-06-13T17:25:41Z

夢の大地
type: MusicRecording
duration: PT4M2S
duration ms: 242826
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901300189
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:39:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6IirURdWdI45h1et06nvHb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6IirURdWdI45h1et06nvHb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713","isrc":"JPU901300189","name":"夢の大地","registered_at":"2026-06-09T15:39:44Z","spotify_id":"6IirURdWdI45h1et06nvHb","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6IirURdWdI45h1et06nvHb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6IirURdWdI45h1et06nvHb.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713","isrc":"JPU901300189","name":"夢の大地","registered_at":"2026-06-09T15:39:44Z","spotify_id":"6IirURdWdI45h1et06nvHb","type":"track"}

アレルヤ
type: MusicRecording
duration: PT5M6S
duration ms: 306653
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901301161
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:38:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/21sXazPHXQpBuHwpsxw2Mh.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21sXazPHXQpBuHwpsxw2Mh
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695","isrc":"JPU901301161","name":"アレルヤ","registered_at":"2026-06-09T16:38:40Z","spotify_id":"21sXazPHXQpBuHwpsxw2Mh","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/21sXazPHXQpBuHwpsxw2Mh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/21sXazPHXQpBuHwpsxw2Mh.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695","isrc":"JPU901301161","name":"アレルヤ","registered_at":"2026-06-09T16:38:40Z","spotify_id":"21sXazPHXQpBuHwpsxw2Mh","type":"track"}

dolce
type: MusicRecording
duration: PT2M51S
duration ms: 171586
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901301162
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T19:07:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a67082b21c44d341bbeb313e4e920238426587a4ddb6208726f9b4519218954
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1BqlQBPcOCNISdxY96Srsj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1BqlQBPcOCNISdxY96Srsj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67082b21c44d341bbeb313e4e920238426587a4ddb6208726f9b4519218954. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1BqlQBPcOCNISdxY96Srsj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1BqlQBPcOCNISdxY96Srsj.
  date published: 2026-07-02T03:30:09Z

君の銀の庭
type: MusicRecording
duration: PT5M8S
duration ms: 308306
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901301237
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:03:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4ng5y9p7whitO0yq4nTBpA.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ng5y9p7whitO0yq4nTBpA
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"4ng5y9p7whitO0yq4nTBpA","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ng5y9p7whitO0yq4nTBpA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ng5y9p7whitO0yq4nTBpA.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"4ng5y9p7whitO0yq4nTBpA","type":"track"}

misterioso
type: MusicRecording
duration: PT4M2S
duration ms: 242880
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901301238
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:54:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4KXvwbGVMuD1kooAqEjCBX.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4KXvwbGVMuD1kooAqEjCBX
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4KXvwbGVMuD1kooAqEjCBX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4KXvwbGVMuD1kooAqEjCBX.
  date published: 2026-07-02T03:55:08Z

heavenly blue
type: MusicRecording
duration: PT5M22S
duration ms: 322120
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901400462
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:16:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0Icxn5ncMnGh4VQKGGNT0a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Icxn5ncMnGh4VQKGGNT0a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46","isrc":"JPU901400462","name":"heavenly blue","registered_at":"2026-06-04T14:16:54Z","spotify_id":"0Icxn5ncMnGh4VQKGGNT0a","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Icxn5ncMnGh4VQKGGNT0a.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Icxn5ncMnGh4VQKGGNT0a.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46","isrc":"JPU901400462","name":"heavenly blue","registered_at":"2026-06-04T14:16:54Z","spotify_id":"0Icxn5ncMnGh4VQKGGNT0a","type":"track"}

believe
type: MusicRecording
duration: PT4M51S
duration ms: 291946
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901401789
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T16:38:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28d1d6207794dc27676149f4eba08e1a5cae432ebb81569537c8f0737d3952d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3VOE7MFlt7F4HeORfpqhnh.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3VOE7MFlt7F4HeORfpqhnh
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d1d6207794dc27676149f4eba08e1a5cae432ebb81569537c8f0737d3952d3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3VOE7MFlt7F4HeORfpqhnh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3VOE7MFlt7F4HeORfpqhnh.
  date published: 2026-07-02T03:55:08Z

ring your bell
type: MusicRecording
duration: PT5M16S
duration ms: 316480
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901501042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:44:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4O8bjTsNFtAyyZ3zAsy2zZ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4O8bjTsNFtAyyZ3zAsy2zZ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc","isrc":"JPU901501042","name":"ring your bell","registered_at":"2026-06-05T11:44:19Z","spotify_id":"4O8bjTsNFtAyyZ3zAsy2zZ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4O8bjTsNFtAyyZ3zAsy2zZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4O8bjTsNFtAyyZ3zAsy2zZ.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc","isrc":"JPU901501042","name":"ring your bell","registered_at":"2026-06-05T11:44:19Z","spotify_id":"4O8bjTsNFtAyyZ3zAsy2zZ","type":"track"}

One Light
type: MusicRecording
duration: PT4M42S
duration ms: 282893
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901501873
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:40:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7g3NMtZ56PTaDcw5wbfVIR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7g3NMtZ56PTaDcw5wbfVIR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795","isrc":"JPU901501873","name":"One Light","registered_at":"2026-06-07T18:40:41Z","spotify_id":"7g3NMtZ56PTaDcw5wbfVIR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7g3NMtZ56PTaDcw5wbfVIR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7g3NMtZ56PTaDcw5wbfVIR.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795","isrc":"JPU901501873","name":"One Light","registered_at":"2026-06-07T18:40:41Z","spotify_id":"7g3NMtZ56PTaDcw5wbfVIR","type":"track"}

far on the water
type: MusicRecording
duration: PT4M32S
duration ms: 272173
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901502527
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T05:55:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4ZvmGdQJKGO7QjaTLKvOXl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ZvmGdQJKGO7QjaTLKvOXl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432","isrc":"JPU901502527","name":"far on the water","registered_at":"2026-06-09T05:55:55Z","spotify_id":"4ZvmGdQJKGO7QjaTLKvOXl","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ZvmGdQJKGO7QjaTLKvOXl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ZvmGdQJKGO7QjaTLKvOXl.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432","isrc":"JPU901502527","name":"far on the water","registered_at":"2026-06-09T05:55:55Z","spotify_id":"4ZvmGdQJKGO7QjaTLKvOXl","type":"track"}

blaze
type: MusicRecording
duration: PT4M3S
duration ms: 243280
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901601567
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:19:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78cce3eaecb79b40a6aab27ff851524526a3933a7650584cf2da6d3d0604f4fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5O3NwL2gfJQYPOGYfEfdAH.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5O3NwL2gfJQYPOGYfEfdAH
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cce3eaecb79b40a6aab27ff851524526a3933a7650584cf2da6d3d0604f4fe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5O3NwL2gfJQYPOGYfEfdAH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5O3NwL2gfJQYPOGYfEfdAH.
  date published: 2026-06-13T12:53:06Z

into the world
type: MusicRecording
duration: PT5M42S
duration ms: 342120
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901700468
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T01:51:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3k8zQqn7AcJ6vhu5cmXFLL.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3k8zQqn7AcJ6vhu5cmXFLL
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08","isrc":"JPU901700468","name":"into the world","registered_at":"2026-06-08T01:51:25Z","spotify_id":"3k8zQqn7AcJ6vhu5cmXFLL","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3k8zQqn7AcJ6vhu5cmXFLL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3k8zQqn7AcJ6vhu5cmXFLL.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08","isrc":"JPU901700468","name":"into the world","registered_at":"2026-06-08T01:51:25Z","spotify_id":"3k8zQqn7AcJ6vhu5cmXFLL","type":"track"}

メルヒェン
type: MusicRecording
duration: PT3M25S
duration ms: 205960
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901700469
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T18:26:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7ua0iHup6U6pnusmcAfECP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ua0iHup6U6pnusmcAfECP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689","isrc":"JPU901700469","name":"メルヒェン","registered_at":"2026-06-08T18:26:26Z","spotify_id":"7ua0iHup6U6pnusmcAfECP","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ua0iHup6U6pnusmcAfECP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ua0iHup6U6pnusmcAfECP.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689","isrc":"JPU901700469","name":"メルヒェン","registered_at":"2026-06-08T18:26:26Z","spotify_id":"7ua0iHup6U6pnusmcAfECP","type":"track"}

百火撩乱
type: MusicRecording
duration: PT4M40S
duration ms: 280000
explicit: false
by artist: Kalafina
in album: Kalafina All Time Best 2008-2018
  type: MusicAlbum
  date published: 2018-10-24
isrc code: JPU901701856
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:47:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/75nWY83NOqO5P3S1dBVaFz.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75nWY83NOqO5P3S1dBVaFz
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4","isrc":"JPU901701856","name":"百火撩乱","registered_at":"2026-06-07T18:47:17Z","spotify_id":"75nWY83NOqO5P3S1dBVaFz","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75nWY83NOqO5P3S1dBVaFz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75nWY83NOqO5P3S1dBVaFz.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4","isrc":"JPU901701856","name":"百火撩乱","registered_at":"2026-06-07T18:47:17Z","spotify_id":"75nWY83NOqO5P3S1dBVaFz","type":"track"}

Winter Acoustic “Kalafina with Strings”
type: MusicAlbum
date published: 2016-11-16
track: from heaven above
  type: MusicRecording
  duration: PT2M9S
  duration ms: 129000
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603135
track: In duici jubilo
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206120
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603136
track: fairytale〜with strings ver.〜
  type: MusicRecording
  duration: PT5M33S
  duration ms: 333320
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603137
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T10:51:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x91f110ecfc534d9df7d0158e24f07da680d75c6599b697635805866474056c56
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/70lJfaM3Qypx2OiGT2QWLv.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/70lJfaM3Qypx2OiGT2QWLv
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x91f110ecfc534d9df7d0158e24f07da680d75c6599b697635805866474056c56","isrc":"JPU901603137","name":"fairytale〜with strings ver.〜","registered_at":"2026-06-24T10:51:57Z","spotify_id":"70lJfaM3Qypx2OiGT2QWLv","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f110ecfc534d9df7d0158e24f07da680d75c6599b697635805866474056c56. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/70lJfaM3Qypx2OiGT2QWLv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/70lJfaM3Qypx2OiGT2QWLv.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x91f110ecfc534d9df7d0158e24f07da680d75c6599b697635805866474056c56","isrc":"JPU901603137","name":"fairytale〜with strings ver.〜","registered_at":"2026-06-24T10:51:57Z","spotify_id":"70lJfaM3Qypx2OiGT2QWLv","type":"track"}
track: sprinter〜with strings ver.〜
  type: MusicRecording
  duration: PT5M54S
  duration ms: 354466
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603138
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T10:52:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x86eb53df3e9d42466d4c5c035f745cc7e7d33cc633e87ed119f2547349d97eab
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2NEVnx13Bj8xD6NNiQiICg.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2NEVnx13Bj8xD6NNiQiICg
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x86eb53df3e9d42466d4c5c035f745cc7e7d33cc633e87ed119f2547349d97eab","isrc":"JPU901603138","name":"sprinter〜with strings ver.〜","registered_at":"2026-06-24T10:52:29Z","spotify_id":"2NEVnx13Bj8xD6NNiQiICg","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86eb53df3e9d42466d4c5c035f745cc7e7d33cc633e87ed119f2547349d97eab. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2NEVnx13Bj8xD6NNiQiICg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2NEVnx13Bj8xD6NNiQiICg.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x86eb53df3e9d42466d4c5c035f745cc7e7d33cc633e87ed119f2547349d97eab","isrc":"JPU901603138","name":"sprinter〜with strings ver.〜","registered_at":"2026-06-24T10:52:29Z","spotify_id":"2NEVnx13Bj8xD6NNiQiICg","type":"track"}
track: Jingle Bells
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174973
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603139
track: we wish you a merry Christmas
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172413
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603140
track: 君の銀の庭〜with strings ver.〜
  type: MusicRecording
  duration: PT5M5S
  duration ms: 305840
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603141
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T13:51:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x237e87cdf8d96b9e1739e75bcd8417cef00370e58c854408da4f5660cebba5b3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0ytE40OiVQkZ0KzjqRpUoJ.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ytE40OiVQkZ0KzjqRpUoJ
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x237e87cdf8d96b9e1739e75bcd8417cef00370e58c854408da4f5660cebba5b3","isrc":"JPU901603141","name":"君の銀の庭〜with strings ver.〜","registered_at":"2026-06-18T13:51:33Z","spotify_id":"0ytE40OiVQkZ0KzjqRpUoJ","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237e87cdf8d96b9e1739e75bcd8417cef00370e58c854408da4f5660cebba5b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ytE40OiVQkZ0KzjqRpUoJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ytE40OiVQkZ0KzjqRpUoJ.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x237e87cdf8d96b9e1739e75bcd8417cef00370e58c854408da4f5660cebba5b3","isrc":"JPU901603141","name":"君の銀の庭〜with strings ver.〜","registered_at":"2026-06-18T13:51:33Z","spotify_id":"0ytE40OiVQkZ0KzjqRpUoJ","type":"track"}
track: ring your bell〜with strings ver.〜
  type: MusicRecording
  duration: PT6M10S
  duration ms: 370493
  explicit: false
  by artist: Kalafina
  in album: Winter Acoustic “Kalafina with Strings”
    type: MusicAlbum
    date published: 2016-11-16
  isrc code: JPU901603142
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T20:24:18+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: もろびとこぞりて
track: have yourself a merry little Christmas
track: dolce〜with strings ver.〜
track: アレルヤ〜piano ver.〜
track: やさしいうた

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x0b35dd7c669c56d9ab96be5fd2de42f62a2638a22bf0513c0c19b7a5b1a08084

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956304

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/0bzrBVQ5U4MVoIqPOcPCF6.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0bzrBVQ5U4MVoIqPOcPCF6

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x0b35dd7c669c56d9ab96be5fd2de42f62a2638a22bf0513c0c19b7a5b1a08084","isrc":"JPU901603142","name":"ring your bell〜with strings ver.〜","registered_at":"2026-06-25T20:24:18Z","spotify_id":"0bzrBVQ5U4MVoIqPOcPCF6","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b35dd7c669c56d9ab96be5fd2de42f62a2638a22bf0513c0c19b7a5b1a08084. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0bzrBVQ5U4MVoIqPOcPCF6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0bzrBVQ5U4MVoIqPOcPCF6.
date published: 2026-07-02T03:55:08Z
text: {"copyright_id":"0x0b35dd7c669c56d9ab96be5fd2de42f62a2638a22bf0513c0c19b7a5b1a08084","isrc":"JPU901603142","name":"ring your bell〜with strings ver.〜","registered_at":"2026-06-25T20:24:18Z","spotify_id":"0bzrBVQ5U4MVoIqPOcPCF6","type":"track"}

もろびとこぞりて
type: MusicRecording
duration: PT2M5S
duration ms: 125346
explicit: false
by artist: Kalafina
in album: Winter Acoustic “Kalafina with Strings”
  type: MusicAlbum
  date published: 2016-11-16

have yourself a merry little Christmas
type: MusicRecording
duration: PT3M28S
duration ms: 208173
explicit: false
by artist: Kalafina
in album: Winter Acoustic “Kalafina with Strings”
  type: MusicAlbum
  date published: 2016-11-16
isrc code: JPU901603144

dolce〜with strings ver.〜
type: MusicRecording
duration: PT2M17S
duration ms: 137266
explicit: false
by artist: Kalafina
in album: Winter Acoustic “Kalafina with Strings”
  type: MusicAlbum
  date published: 2016-11-16
isrc code: JPU901603145
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T20:47:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5423204e78dd532cc03e7e457c5d6a5fdce081bc7bea6456259b22bb376c1394
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/42kwQIn0ChDj2nfqqN05iD.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42kwQIn0ChDj2nfqqN05iD
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5423204e78dd532cc03e7e457c5d6a5fdce081bc7bea6456259b22bb376c1394","isrc":"JPU901603145","name":"dolce〜with strings ver.〜","registered_at":"2026-06-26T20:47:27Z","spotify_id":"42kwQIn0ChDj2nfqqN05iD","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5423204e78dd532cc03e7e457c5d6a5fdce081bc7bea6456259b22bb376c1394. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/42kwQIn0ChDj2nfqqN05iD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42kwQIn0ChDj2nfqqN05iD.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x5423204e78dd532cc03e7e457c5d6a5fdce081bc7bea6456259b22bb376c1394","isrc":"JPU901603145","name":"dolce〜with strings ver.〜","registered_at":"2026-06-26T20:47:27Z","spotify_id":"42kwQIn0ChDj2nfqqN05iD","type":"track"}

アレルヤ〜piano ver.〜
type: MusicRecording
duration: PT5M0S
duration ms: 300880
explicit: false
by artist: Kalafina
in album: Winter Acoustic “Kalafina with Strings”
  type: MusicAlbum
  date published: 2016-11-16
isrc code: JPU901603146
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T18:12:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26fdcac572e99fa58cefa8aa3f0bd91a9182d4cee7ab373d2a840fbd76ad1b6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/61qf1SQR4E8Xwqili7i5nz.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/61qf1SQR4E8Xwqili7i5nz
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x26fdcac572e99fa58cefa8aa3f0bd91a9182d4cee7ab373d2a840fbd76ad1b6f","isrc":"JPU901603146","name":"アレルヤ〜piano ver.〜","registered_at":"2026-06-25T18:12:41Z","spotify_id":"61qf1SQR4E8Xwqili7i5nz","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fdcac572e99fa58cefa8aa3f0bd91a9182d4cee7ab373d2a840fbd76ad1b6f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/61qf1SQR4E8Xwqili7i5nz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/61qf1SQR4E8Xwqili7i5nz.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x26fdcac572e99fa58cefa8aa3f0bd91a9182d4cee7ab373d2a840fbd76ad1b6f","isrc":"JPU901603146","name":"アレルヤ〜piano ver.〜","registered_at":"2026-06-25T18:12:41Z","spotify_id":"61qf1SQR4E8Xwqili7i5nz","type":"track"}

やさしいうた
type: MusicRecording
duration: PT5M43S
duration ms: 343253
explicit: false
by artist: Kalafina
in album: Winter Acoustic “Kalafina with Strings”
  type: MusicAlbum
  date published: 2016-11-16
isrc code: JPU901603147
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T20:49:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c6d2f9faa0f839d28227c30fe5aee364b44e75c07d07652e8985293dec37b88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5gkpXIl1I79Rhr02ezLGgt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gkpXIl1I79Rhr02ezLGgt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c6d2f9faa0f839d28227c30fe5aee364b44e75c07d07652e8985293dec37b88","isrc":"JPU901603147","name":"やさしいうた","registered_at":"2026-06-26T20:49:31Z","spotify_id":"5gkpXIl1I79Rhr02ezLGgt","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6d2f9faa0f839d28227c30fe5aee364b44e75c07d07652e8985293dec37b88. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5gkpXIl1I79Rhr02ezLGgt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gkpXIl1I79Rhr02ezLGgt.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x4c6d2f9faa0f839d28227c30fe5aee364b44e75c07d07652e8985293dec37b88","isrc":"JPU901603147","name":"やさしいうた","registered_at":"2026-06-26T20:49:31Z","spotify_id":"5gkpXIl1I79Rhr02ezLGgt","type":"track"}

far on the water
type: MusicAlbum
date published: 2015-09-16
track: into the water
  type: MusicRecording
  duration: PT1M37S
  duration ms: 97640
  explicit: false
  by artist: Kalafina
  in album: far on the water
    type: MusicAlbum
    date published: 2015-09-16
  isrc code: JPU901502519
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T10:19:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf71d5af8a4a44edd6d5baa83bd4cbf4817da5ddb061b161b7ad46e6eddcfbe43
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7eVHQItY63Racym7NUAwAy.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7eVHQItY63Racym7NUAwAy
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xf71d5af8a4a44edd6d5baa83bd4cbf4817da5ddb061b161b7ad46e6eddcfbe43","isrc":"JPU901502519","name":"into the water","registered_at":"2026-06-24T10:19:49Z","spotify_id":"7eVHQItY63Racym7NUAwAy","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71d5af8a4a44edd6d5baa83bd4cbf4817da5ddb061b161b7ad46e6eddcfbe43. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7eVHQItY63Racym7NUAwAy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7eVHQItY63Racym7NUAwAy.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0xf71d5af8a4a44edd6d5baa83bd4cbf4817da5ddb061b161b7ad46e6eddcfbe43","isrc":"JPU901502519","name":"into the water","registered_at":"2026-06-24T10:19:49Z","spotify_id":"7eVHQItY63Racym7NUAwAy","type":"track"}
track: monochrome
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212573
  explicit: false
  by artist: Kalafina
  in album: far on the water
    type: MusicAlbum
    date published: 2015-09-16
  isrc code: JPU901502520
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T08:14:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xad50e4ffddda10b923893a1662a86855038a2769401165dfcd431314ff21e5c8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2xe9FnM1Vx3t0nFWln7wV9.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xe9FnM1Vx3t0nFWln7wV9
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad50e4ffddda10b923893a1662a86855038a2769401165dfcd431314ff21e5c8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xe9FnM1Vx3t0nFWln7wV9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xe9FnM1Vx3t0nFWln7wV9.
    date published: 2026-07-02T03:55:08Z
track: 五月の魔法
  type: MusicRecording
  duration: PT4M57S
  duration ms: 297453
  explicit: false
  by artist: Kalafina
  in album: far on the water
    type: MusicAlbum
    date published: 2015-09-16
  isrc code: JPU901502521
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T02:07:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf3704a6dc39cc094d96d441b5598d386ddd45e1a13a32dd0857724c5f2e59f60
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6hxxskyEtXd5itwl3BaZBk.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hxxskyEtXd5itwl3BaZBk
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xf3704a6dc39cc094d96d441b5598d386ddd45e1a13a32dd0857724c5f2e59f60","isrc":"JPU901502521","name":"五月の魔法","registered_at":"2026-06-10T02:07:55Z","spotify_id":"6hxxskyEtXd5itwl3BaZBk","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3704a6dc39cc094d96d441b5598d386ddd45e1a13a32dd0857724c5f2e59f60. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hxxskyEtXd5itwl3BaZBk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hxxskyEtXd5itwl3BaZBk.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xf3704a6dc39cc094d96d441b5598d386ddd45e1a13a32dd0857724c5f2e59f60","isrc":"JPU901502521","name":"五月の魔法","registered_at":"2026-06-10T02:07:55Z","spotify_id":"6hxxskyEtXd5itwl3BaZBk","type":"track"}
track: ring your bell
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316026
  explicit: false
  by artist: Kalafina
  in album: far on the water
    type: MusicAlbum
    date published: 2015-09-16
  isrc code: JPU901501042
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T11:44:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0oiQsWPq6RvZGKQ506zwHm.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0oiQsWPq6RvZGKQ506zwHm
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc","isrc":"JPU901501042","name":"ring your bell","registered_at":"2026-06-05T11:44:19Z","spotify_id":"0oiQsWPq6RvZGKQ506zwHm","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0oiQsWPq6RvZGKQ506zwHm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0oiQsWPq6RvZGKQ506zwHm.
    date published: 2026-06-13T12:47:07Z
    text: {"copyright_id":"0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc","isrc":"JPU901501042","name":"ring your bell","registered_at":"2026-06-05T11:44:19Z","spotify_id":"0oiQsWPq6RvZGKQ506zwHm","type":"track"}
track: うすむらさき
  type: MusicRecording
  duration: PT5M10S
  duration ms: 310666
  explicit: false
  by artist: Kalafina
  in album: far on the water
    type: MusicAlbum
    date published: 2015-09-16
  isrc code: JPU901502522
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: identify
track: 灯影
track: One Light
track: むすんでひらく
track: heavenly blue
track: 空色の椅子
track: believe
track: far on the water

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-24T08:14:47+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb776a68e396518f9c2c2be5a1ab9a593aa0095f55cc011867d77faeb0a39069b

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956304

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/2WJsPDkUpnyiXU5LBZOBuz.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2WJsPDkUpnyiXU5LBZOBuz

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xb776a68e396518f9c2c2be5a1ab9a593aa0095f55cc011867d77faeb0a39069b","isrc":"JPU901502522","name":"うすむらさき","registered_at":"2026-06-24T08:14:47Z","spotify_id":"2WJsPDkUpnyiXU5LBZOBuz","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb776a68e396518f9c2c2be5a1ab9a593aa0095f55cc011867d77faeb0a39069b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2WJsPDkUpnyiXU5LBZOBuz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2WJsPDkUpnyiXU5LBZOBuz.
date published: 2026-07-02T03:55:08Z
text: {"copyright_id":"0xb776a68e396518f9c2c2be5a1ab9a593aa0095f55cc011867d77faeb0a39069b","isrc":"JPU901502522","name":"うすむらさき","registered_at":"2026-06-24T08:14:47Z","spotify_id":"2WJsPDkUpnyiXU5LBZOBuz","type":"track"}

identify
type: MusicRecording
duration: PT4M29S
duration ms: 269026
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901502523
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T22:37:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeddd7cda42cc7e8c361fe77a419405e566fd604cdf5129dee9274930fb8eee37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2tlER0WFCLBvRzqXhL5XGb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2tlER0WFCLBvRzqXhL5XGb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd7cda42cc7e8c361fe77a419405e566fd604cdf5129dee9274930fb8eee37. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2tlER0WFCLBvRzqXhL5XGb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2tlER0WFCLBvRzqXhL5XGb.
  date published: 2026-07-02T03:55:08Z

灯影
type: MusicRecording
duration: PT3M11S
duration ms: 191320
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901502524
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T22:34:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d2791996a834e408fd7e27e6b6a8c118364ab191226e7cfceb4a30d11664604
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7ffiVVdUwTwZH6IcyewTWj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ffiVVdUwTwZH6IcyewTWj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d2791996a834e408fd7e27e6b6a8c118364ab191226e7cfceb4a30d11664604","isrc":"JPU901502524","name":"灯影","registered_at":"2026-06-22T22:34:41Z","spotify_id":"7ffiVVdUwTwZH6IcyewTWj","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2791996a834e408fd7e27e6b6a8c118364ab191226e7cfceb4a30d11664604. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ffiVVdUwTwZH6IcyewTWj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ffiVVdUwTwZH6IcyewTWj.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x5d2791996a834e408fd7e27e6b6a8c118364ab191226e7cfceb4a30d11664604","isrc":"JPU901502524","name":"灯影","registered_at":"2026-06-22T22:34:41Z","spotify_id":"7ffiVVdUwTwZH6IcyewTWj","type":"track"}

One Light
type: MusicRecording
duration: PT4M40S
duration ms: 280573
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901501873
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:40:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1T2x2N3tIa2EP1uj8H67Tz.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1T2x2N3tIa2EP1uj8H67Tz
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795","isrc":"JPU901501873","name":"One Light","registered_at":"2026-06-07T18:40:41Z","spotify_id":"1T2x2N3tIa2EP1uj8H67Tz","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1T2x2N3tIa2EP1uj8H67Tz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1T2x2N3tIa2EP1uj8H67Tz.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795","isrc":"JPU901501873","name":"One Light","registered_at":"2026-06-07T18:40:41Z","spotify_id":"1T2x2N3tIa2EP1uj8H67Tz","type":"track"}

むすんでひらく
type: MusicRecording
duration: PT5M21S
duration ms: 321000
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901502525
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T08:14:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9af1880f680e77837d18f20de39274dcc5de6c4a4a5f30e74f7941e374f102bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1vBNVlBxqrshnCIieJf5sZ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vBNVlBxqrshnCIieJf5sZ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9af1880f680e77837d18f20de39274dcc5de6c4a4a5f30e74f7941e374f102bc","isrc":"JPU901502525","name":"むすんでひらく","registered_at":"2026-06-24T08:14:26Z","spotify_id":"1vBNVlBxqrshnCIieJf5sZ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af1880f680e77837d18f20de39274dcc5de6c4a4a5f30e74f7941e374f102bc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1vBNVlBxqrshnCIieJf5sZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1vBNVlBxqrshnCIieJf5sZ.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x9af1880f680e77837d18f20de39274dcc5de6c4a4a5f30e74f7941e374f102bc","isrc":"JPU901502525","name":"むすんでひらく","registered_at":"2026-06-24T08:14:26Z","spotify_id":"1vBNVlBxqrshnCIieJf5sZ","type":"track"}

heavenly blue
type: MusicRecording
duration: PT5M23S
duration ms: 323186
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901400462
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:16:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2xEmTkW9jthoXfY8sVpAVp.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xEmTkW9jthoXfY8sVpAVp
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46","isrc":"JPU901400462","name":"heavenly blue","registered_at":"2026-06-04T14:16:54Z","spotify_id":"2xEmTkW9jthoXfY8sVpAVp","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2xEmTkW9jthoXfY8sVpAVp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2xEmTkW9jthoXfY8sVpAVp.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46","isrc":"JPU901400462","name":"heavenly blue","registered_at":"2026-06-04T14:16:54Z","spotify_id":"2xEmTkW9jthoXfY8sVpAVp","type":"track"}

空色の椅子
type: MusicRecording
duration: PT3M18S
duration ms: 198626
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901502526
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:02:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7dddb5a02fa98850c30b8d1f87282322e73ffb5ed5020dd78f22a39f834bd76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1F6h9K9x4VK21VJOQl1ZbR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1F6h9K9x4VK21VJOQl1ZbR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc7dddb5a02fa98850c30b8d1f87282322e73ffb5ed5020dd78f22a39f834bd76","isrc":"JPU901502526","name":"空色の椅子","registered_at":"2026-06-18T13:02:11Z","spotify_id":"1F6h9K9x4VK21VJOQl1ZbR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dddb5a02fa98850c30b8d1f87282322e73ffb5ed5020dd78f22a39f834bd76. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1F6h9K9x4VK21VJOQl1ZbR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1F6h9K9x4VK21VJOQl1ZbR.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xc7dddb5a02fa98850c30b8d1f87282322e73ffb5ed5020dd78f22a39f834bd76","isrc":"JPU901502526","name":"空色の椅子","registered_at":"2026-06-18T13:02:11Z","spotify_id":"1F6h9K9x4VK21VJOQl1ZbR","type":"track"}

believe
type: MusicRecording
duration: PT4M51S
duration ms: 291960
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901401789
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T16:38:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28d1d6207794dc27676149f4eba08e1a5cae432ebb81569537c8f0737d3952d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/69AJEvfkQjhjkKJRASOnTr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69AJEvfkQjhjkKJRASOnTr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d1d6207794dc27676149f4eba08e1a5cae432ebb81569537c8f0737d3952d3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69AJEvfkQjhjkKJRASOnTr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69AJEvfkQjhjkKJRASOnTr.
  date published: 2026-06-13T12:47:07Z

far on the water
type: MusicRecording
duration: PT4M31S
duration ms: 271386
explicit: false
by artist: Kalafina
in album: far on the water
  type: MusicAlbum
  date published: 2015-09-16
isrc code: JPU901502527
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T05:55:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1LfbJtPUvTHBj12eox6T3P.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1LfbJtPUvTHBj12eox6T3P
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432","isrc":"JPU901502527","name":"far on the water","registered_at":"2026-06-09T05:55:55Z","spotify_id":"1LfbJtPUvTHBj12eox6T3P","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1LfbJtPUvTHBj12eox6T3P.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1LfbJtPUvTHBj12eox6T3P.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x8adfbf1c9f337f9f29125eddc876ad2c81d55040944e652fec3fd175c6369432","isrc":"JPU901502527","name":"far on the water","registered_at":"2026-06-09T05:55:55Z","spotify_id":"1LfbJtPUvTHBj12eox6T3P","type":"track"}

THE BEST “Red”
type: MusicAlbum
date published: 2014-07-16
track: prelude
  type: MusicRecording
  duration: PT1M35S
  duration ms: 95973
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Red”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU901400461
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T10:52:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6c4e0d388e02d0b36210f79b453e44e6933a6f54d4f579bfe4c9e1fade9f25ae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4AR6xCADdKuWPqhxBLM5cb.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4AR6xCADdKuWPqhxBLM5cb
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4e0d388e02d0b36210f79b453e44e6933a6f54d4f579bfe4c9e1fade9f25ae. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4AR6xCADdKuWPqhxBLM5cb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4AR6xCADdKuWPqhxBLM5cb.
    date published: 2026-07-02T05:09:12Z
track: misterioso
  type: MusicRecording
  duration: PT4M0S
  duration ms: 240826
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Red”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU901301238
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:54:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7mmM58kYaoy8GXjGZWAG24.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7mmM58kYaoy8GXjGZWAG24
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7mmM58kYaoy8GXjGZWAG24.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7mmM58kYaoy8GXjGZWAG24.
    date published: 2026-06-13T17:25:41Z
track: 光の旋律
  type: MusicRecording
  duration: PT6M12S
  duration ms: 372386
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Red”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU900901981
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:06:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5OuW06dhIT2uXVrhORb3pg.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OuW06dhIT2uXVrhORb3pg
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"5OuW06dhIT2uXVrhORb3pg","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OuW06dhIT2uXVrhORb3pg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OuW06dhIT2uXVrhORb3pg.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"5OuW06dhIT2uXVrhORb3pg","type":"track"}
track: Lacrimosa
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253706
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Red”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU900900028
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T14:27:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956889
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1LyECt9xPVzQXel7T2GpUl.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1LyECt9xPVzQXel7T2GpUl
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1LyECt9xPVzQXel7T2GpUl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1LyECt9xPVzQXel7T2GpUl.
    date published: 2026-07-06T06:56:49Z
track: ARIA
  type: MusicRecording
  duration: PT5M23S
  duration ms: 323600
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Red”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU900801527
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:05:47+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: 輝く空の静寂には
track: moonfesta〜ムーンフェスタ〜
track: ひかりふる
track: oblivious
track: 音楽
track: consolation
track: 胸の行方
track: 夢の大地
track: Eden
track: アレルヤ

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956857

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956857

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/1ccFKqgYzCdLcCTTxi6oEa.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ccFKqgYzCdLcCTTxi6oEa

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:26:17Z

OTSCanonicalRecord
type: PropertyValue

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ccFKqgYzCdLcCTTxi6oEa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ccFKqgYzCdLcCTTxi6oEa.
date published: 2026-07-06T01:26:17Z

輝く空の静寂には
type: MusicRecording
duration: PT4M12S
duration ms: 252933
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901001121
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:44:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956856
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0hR4vZy7y0sZGdFMePBuwq.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0hR4vZy7y0sZGdFMePBuwq
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"0hR4vZy7y0sZGdFMePBuwq","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0hR4vZy7y0sZGdFMePBuwq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0hR4vZy7y0sZGdFMePBuwq.
  date published: 2026-07-06T01:25:57Z
  text: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"0hR4vZy7y0sZGdFMePBuwq","type":"track"}

moonfesta〜ムーンフェスタ〜
type: MusicRecording
duration: PT4M27S
duration ms: 267680
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901200761
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T21:09:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1OnWK0FRibniPUFDiRPJIS.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1OnWK0FRibniPUFDiRPJIS
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"1OnWK0FRibniPUFDiRPJIS","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1OnWK0FRibniPUFDiRPJIS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1OnWK0FRibniPUFDiRPJIS.
  date published: 2026-07-08T03:22:41Z
  text: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"1OnWK0FRibniPUFDiRPJIS","type":"track"}

ひかりふる
type: MusicRecording
duration: PT4M53S
duration ms: 293360
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901201401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:43:53+00:00

oblivious
type: MusicRecording
duration: PT4M22S
duration ms: 262373
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU900702341
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:57:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0wpOcFyG8ROHnghFrLcR9p.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wpOcFyG8ROHnghFrLcR9p
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0wpOcFyG8ROHnghFrLcR9p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wpOcFyG8ROHnghFrLcR9p.
  date published: 2026-07-02T05:09:12Z

音楽
type: MusicRecording
duration: PT5M38S
duration ms: 338520
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU900900024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:25:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956889
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5P13cydqsusMUsnwbXX0Lq.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5P13cydqsusMUsnwbXX0Lq
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65","isrc":"JPU900900024","name":"音楽","registered_at":"2026-06-10T15:25:00Z","spotify_id":"5P13cydqsusMUsnwbXX0Lq","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5P13cydqsusMUsnwbXX0Lq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5P13cydqsusMUsnwbXX0Lq.
  date published: 2026-07-06T06:56:49Z
  text: {"copyright_id":"0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65","isrc":"JPU900900024","name":"音楽","registered_at":"2026-06-10T15:25:00Z","spotify_id":"5P13cydqsusMUsnwbXX0Lq","type":"track"}

consolation
type: MusicRecording
duration: PT5M10S
duration ms: 310573
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901300182
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T10:47:27+00:00

胸の行方
type: MusicRecording
duration: PT6M17S
duration ms: 377600
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901100949
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T19:54:42+00:00

夢の大地
type: MusicRecording
duration: PT4M1S
duration ms: 241333
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901300189
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:39:44+00:00

Eden
type: MusicRecording
duration: PT5M40S
duration ms: 340386
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901100941
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T21:11:34+00:00

アレルヤ
type: MusicRecording
duration: PT5M6S
duration ms: 306186
explicit: false
by artist: Kalafina
in album: THE BEST “Red”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901301161
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:38:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6hbI4uZsIYU3KM0ta6zsv5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hbI4uZsIYU3KM0ta6zsv5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695","isrc":"JPU901301161","name":"アレルヤ","registered_at":"2026-06-09T16:38:40Z","spotify_id":"6hbI4uZsIYU3KM0ta6zsv5","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hbI4uZsIYU3KM0ta6zsv5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hbI4uZsIYU3KM0ta6zsv5.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695","isrc":"JPU901301161","name":"アレルヤ","registered_at":"2026-06-09T16:38:40Z","spotify_id":"6hbI4uZsIYU3KM0ta6zsv5","type":"track"}

THE BEST “Blue”
type: MusicAlbum
date published: 2014-07-16
track: storia
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217266
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Blue”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU900900744
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T02:36:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6J9B284el0IT89aLnhzHq0.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6J9B284el0IT89aLnhzHq0
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6J9B284el0IT89aLnhzHq0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6J9B284el0IT89aLnhzHq0.
    date published: 2026-07-02T03:55:08Z
track: 君の銀の庭
  type: MusicRecording
  duration: PT5M6S
  duration ms: 306320
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Blue”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU901301237
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:03:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1kDEDOGIKRshZnz0VLUVcS.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1kDEDOGIKRshZnz0VLUVcS
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"1kDEDOGIKRshZnz0VLUVcS","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1kDEDOGIKRshZnz0VLUVcS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1kDEDOGIKRshZnz0VLUVcS.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"1kDEDOGIKRshZnz0VLUVcS","type":"track"}
track: red moon
  type: MusicRecording
  duration: PT6M39S
  duration ms: 399480
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Blue”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU901000101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T12:20:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3gkv7oKwZ9H7HkSx8gBwLv.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3gkv7oKwZ9H7HkSx8gBwLv
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de","isrc":"JPU901000101","name":"red moon","registered_at":"2026-06-07T12:20:24Z","spotify_id":"3gkv7oKwZ9H7HkSx8gBwLv","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3gkv7oKwZ9H7HkSx8gBwLv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3gkv7oKwZ9H7HkSx8gBwLv.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de","isrc":"JPU901000101","name":"red moon","registered_at":"2026-06-07T12:20:24Z","spotify_id":"3gkv7oKwZ9H7HkSx8gBwLv","type":"track"}
track: Magia
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312426
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Blue”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU901001841
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T11:17:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7tMi07cOAKzw0yxSWOEgO1.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7tMi07cOAKzw0yxSWOEgO1
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7tMi07cOAKzw0yxSWOEgO1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7tMi07cOAKzw0yxSWOEgO1.
    date published: 2026-07-02T03:30:09Z
track: seventh heaven
  type: MusicRecording
  duration: PT6M13S
  duration ms: 373120
  explicit: false
  by artist: Kalafina
  in album: THE BEST “Blue”
    type: MusicAlbum
    date published: 2014-07-16
  isrc code: JPU900900027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: signal
track: 夏の林檎
track: sprinter
track: I have a dream
track: 未来
track: 満天
track: snow falling
track: to the beginning
track: symphonia
track: heavenly blue

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-08T01:53:17+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956857

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956857

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/435mG43LQiQ2kHPxNS3Ybm.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/435mG43LQiQ2kHPxNS3Ybm

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:26:17Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168","isrc":"JPU900900027","name":"seventh heaven","registered_at":"2026-06-08T01:53:17Z","spotify_id":"435mG43LQiQ2kHPxNS3Ybm","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/435mG43LQiQ2kHPxNS3Ybm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/435mG43LQiQ2kHPxNS3Ybm.
date published: 2026-07-06T01:26:17Z
text: {"copyright_id":"0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168","isrc":"JPU900900027","name":"seventh heaven","registered_at":"2026-06-08T01:53:17Z","spotify_id":"435mG43LQiQ2kHPxNS3Ybm","type":"track"}

signal
type: MusicRecording
duration: PT4M59S
duration ms: 299053
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901300187
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:32:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa12fc6b3b62585d9ad306cbe6de3de25f9fbe1ded529aebcc04c98d549d3538e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0ZNP4Iz3TAFZsnwHwO2TE0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZNP4Iz3TAFZsnwHwO2TE0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12fc6b3b62585d9ad306cbe6de3de25f9fbe1ded529aebcc04c98d549d3538e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0ZNP4Iz3TAFZsnwHwO2TE0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZNP4Iz3TAFZsnwHwO2TE0.
  date published: 2026-07-02T03:55:08Z

夏の林檎
type: MusicRecording
duration: PT4M3S
duration ms: 243626
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU900900026
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:36:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/16lrun2GfJiJsFoDB2F2FV.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/16lrun2GfJiJsFoDB2F2FV
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb","isrc":"JPU900900026","name":"夏の林檎","registered_at":"2026-06-09T15:36:09Z","spotify_id":"16lrun2GfJiJsFoDB2F2FV","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/16lrun2GfJiJsFoDB2F2FV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/16lrun2GfJiJsFoDB2F2FV.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb","isrc":"JPU900900026","name":"夏の林檎","registered_at":"2026-06-09T15:36:09Z","spotify_id":"16lrun2GfJiJsFoDB2F2FV","type":"track"}

sprinter
type: MusicRecording
duration: PT5M4S
duration ms: 304240
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU900801526
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T02:32:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7aklRT3o9NKnb215R66JBr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7aklRT3o9NKnb215R66JBr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7aklRT3o9NKnb215R66JBr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7aklRT3o9NKnb215R66JBr.
  date published: 2026-07-02T03:55:08Z

I have a dream
type: MusicRecording
duration: PT5M57S
duration ms: 357760
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901000061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:41:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957118
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6yERQgg0iZeZJQWZwlupK8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6yERQgg0iZeZJQWZwlupK8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af","isrc":"JPU901000061","name":"I have a dream","registered_at":"2026-06-19T07:41:19Z","spotify_id":"6yERQgg0iZeZJQWZwlupK8","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6yERQgg0iZeZJQWZwlupK8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6yERQgg0iZeZJQWZwlupK8.
  date published: 2026-07-08T03:20:19Z
  text: {"copyright_id":"0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af","isrc":"JPU901000061","name":"I have a dream","registered_at":"2026-06-19T07:41:19Z","spotify_id":"6yERQgg0iZeZJQWZwlupK8","type":"track"}

未来
type: MusicRecording
duration: PT4M32S
duration ms: 272266
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901201402
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:08:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3kXxQtdyDPV2wlyNJDm9bO.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3kXxQtdyDPV2wlyNJDm9bO
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"3kXxQtdyDPV2wlyNJDm9bO","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3kXxQtdyDPV2wlyNJDm9bO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3kXxQtdyDPV2wlyNJDm9bO.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"3kXxQtdyDPV2wlyNJDm9bO","type":"track"}

満天
type: MusicRecording
duration: PT5M14S
duration ms: 314360
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901200382
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T07:11:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1CixHJfGAeviGRQxglLKt1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CixHJfGAeviGRQxglLKt1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"1CixHJfGAeviGRQxglLKt1","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1CixHJfGAeviGRQxglLKt1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1CixHJfGAeviGRQxglLKt1.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"1CixHJfGAeviGRQxglLKt1","type":"track"}

snow falling
type: MusicRecording
duration: PT4M40S
duration ms: 280173
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901002001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T02:07:35+00:00

to the beginning
type: MusicRecording
duration: PT4M16S
duration ms: 256053
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901200381
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:09:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6VvxhxVFcvHPglazDXwfRf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6VvxhxVFcvHPglazDXwfRf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"6VvxhxVFcvHPglazDXwfRf","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6VvxhxVFcvHPglazDXwfRf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6VvxhxVFcvHPglazDXwfRf.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"6VvxhxVFcvHPglazDXwfRf","type":"track"}

symphonia
type: MusicRecording
duration: PT5M44S
duration ms: 344413
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901100950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T06:06:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13d31789fe78f5f965dcc4343c538fb2a602e1bd2a5d9f0ca2f8fbcb2968adeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956894
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/12VQuef7ZpoVfwOd1j049p.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/12VQuef7ZpoVfwOd1j049p
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d31789fe78f5f965dcc4343c538fb2a602e1bd2a5d9f0ca2f8fbcb2968adeb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/12VQuef7ZpoVfwOd1j049p.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/12VQuef7ZpoVfwOd1j049p.
  date published: 2026-07-06T07:53:57Z

heavenly blue
type: MusicRecording
duration: PT5M20S
duration ms: 320880
explicit: false
by artist: Kalafina
in album: THE BEST “Blue”
  type: MusicAlbum
  date published: 2014-07-16
isrc code: JPU901400462
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:16:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5qpUyii8Sh8DZay1IoVFtj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5qpUyii8Sh8DZay1IoVFtj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46","isrc":"JPU901400462","name":"heavenly blue","registered_at":"2026-06-04T14:16:54Z","spotify_id":"5qpUyii8Sh8DZay1IoVFtj","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5qpUyii8Sh8DZay1IoVFtj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5qpUyii8Sh8DZay1IoVFtj.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x8c577e8f2a889f09271f7ba588b1ad3037a30891bc39db9a26c54d822c34ad46","isrc":"JPU901400462","name":"heavenly blue","registered_at":"2026-06-04T14:16:54Z","spotify_id":"5qpUyii8Sh8DZay1IoVFtj","type":"track"}

Consolation
type: MusicAlbum
date published: 2013-03-20
track: al fine
  type: MusicRecording
  duration: PT1M47S
  duration ms: 107453
  explicit: false
  by artist: Kalafina
  in album: Consolation
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPU901300181
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T21:09:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6d98c4f321ccc402d6c7066dc61dba14d6955b5d75e35313c93c042b116661d0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/10hhnAJ1XPxkSquSwnFQlD.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/10hhnAJ1XPxkSquSwnFQlD
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6d98c4f321ccc402d6c7066dc61dba14d6955b5d75e35313c93c042b116661d0","isrc":"JPU901300181","name":"al fine","registered_at":"2026-06-17T21:09:47Z","spotify_id":"10hhnAJ1XPxkSquSwnFQlD","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98c4f321ccc402d6c7066dc61dba14d6955b5d75e35313c93c042b116661d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/10hhnAJ1XPxkSquSwnFQlD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/10hhnAJ1XPxkSquSwnFQlD.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x6d98c4f321ccc402d6c7066dc61dba14d6955b5d75e35313c93c042b116661d0","isrc":"JPU901300181","name":"al fine","registered_at":"2026-06-17T21:09:47Z","spotify_id":"10hhnAJ1XPxkSquSwnFQlD","type":"track"}
track: consolation
  type: MusicRecording
  duration: PT5M11S
  duration ms: 311586
  explicit: false
  by artist: Kalafina
  in album: Consolation
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPU901300182
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T10:47:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4f4855f4d28c6e5ce028ed4eb28a4644b5a9eaf6139674f044a6d022e54f50ae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3w0gAiEyTjzNjLEHR6ZuG2.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3w0gAiEyTjzNjLEHR6ZuG2
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4855f4d28c6e5ce028ed4eb28a4644b5a9eaf6139674f044a6d022e54f50ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3w0gAiEyTjzNjLEHR6ZuG2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3w0gAiEyTjzNjLEHR6ZuG2.
    date published: 2026-06-13T15:41:10Z
track: moonfesta〜ムーンフェスタ〜
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267680
  explicit: false
  by artist: Kalafina
  in album: Consolation
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPU901200761
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T21:09:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6c67gFT9lxjRz8tJEnbL7c.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6c67gFT9lxjRz8tJEnbL7c
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"6c67gFT9lxjRz8tJEnbL7c","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6c67gFT9lxjRz8tJEnbL7c.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6c67gFT9lxjRz8tJEnbL7c.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"6c67gFT9lxjRz8tJEnbL7c","type":"track"}
track: Door
  type: MusicRecording
  duration: PT5M27S
  duration ms: 327253
  explicit: false
  by artist: Kalafina
  in album: Consolation
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPU901300183
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T17:49:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x84f6fc6df671743e7c751341e1e1d798a8f808425802ebcd40c61e11341d08fb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4ELYGh7cVnUmnWv0DJYecA.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ELYGh7cVnUmnWv0DJYecA
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f6fc6df671743e7c751341e1e1d798a8f808425802ebcd40c61e11341d08fb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ELYGh7cVnUmnWv0DJYecA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ELYGh7cVnUmnWv0DJYecA.
    date published: 2026-07-02T03:30:09Z
track: 未来
  type: MusicRecording
  duration: PT4M33S
  duration ms: 273306
  explicit: false
  by artist: Kalafina
  in album: Consolation
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPU901201402
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: 花束
track: signal
track: obbligato
track: 木苺の茂みに
track: 満天
track: to the beginning
track: ひかりふる
track: 夢の大地

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-06T09:08:00+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953528

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/6tlYL7K5c7oNmlHfnYYOqV.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6tlYL7K5c7oNmlHfnYYOqV

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"6tlYL7K5c7oNmlHfnYYOqV","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6tlYL7K5c7oNmlHfnYYOqV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6tlYL7K5c7oNmlHfnYYOqV.
date published: 2026-06-13T15:41:10Z
text: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"6tlYL7K5c7oNmlHfnYYOqV","type":"track"}

花束
type: MusicRecording
duration: PT4M49S
duration ms: 289453
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901300185
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:09:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfb0a05ca72abbca5c906e1b917d47a5b1da25abbc999aa282e9f4d9fbfd7a02a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5NhkRyg2lFEVwxqAVg2RKm.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5NhkRyg2lFEVwxqAVg2RKm
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfb0a05ca72abbca5c906e1b917d47a5b1da25abbc999aa282e9f4d9fbfd7a02a","isrc":"JPU901300185","name":"花束","registered_at":"2026-06-20T03:09:33Z","spotify_id":"5NhkRyg2lFEVwxqAVg2RKm","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0a05ca72abbca5c906e1b917d47a5b1da25abbc999aa282e9f4d9fbfd7a02a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5NhkRyg2lFEVwxqAVg2RKm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5NhkRyg2lFEVwxqAVg2RKm.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xfb0a05ca72abbca5c906e1b917d47a5b1da25abbc999aa282e9f4d9fbfd7a02a","isrc":"JPU901300185","name":"花束","registered_at":"2026-06-20T03:09:33Z","spotify_id":"5NhkRyg2lFEVwxqAVg2RKm","type":"track"}

signal
type: MusicRecording
duration: PT4M56S
duration ms: 296506
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901300187
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:32:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa12fc6b3b62585d9ad306cbe6de3de25f9fbe1ded529aebcc04c98d549d3538e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0smPUBfTkSWdpvAaPath9u.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0smPUBfTkSWdpvAaPath9u
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12fc6b3b62585d9ad306cbe6de3de25f9fbe1ded529aebcc04c98d549d3538e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0smPUBfTkSWdpvAaPath9u.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0smPUBfTkSWdpvAaPath9u.
  date published: 2026-07-02T03:55:08Z

obbligato
type: MusicRecording
duration: PT6M12S
duration ms: 372586
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901300186
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T21:13:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7f01aad1acc0554bca815f985b372dad6c1d68a5aa2be9382e2afa90ec105e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/08VpsZrFd5jY2WF6ZdXNFT.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08VpsZrFd5jY2WF6ZdXNFT
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f01aad1acc0554bca815f985b372dad6c1d68a5aa2be9382e2afa90ec105e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/08VpsZrFd5jY2WF6ZdXNFT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08VpsZrFd5jY2WF6ZdXNFT.
  date published: 2026-07-02T03:55:08Z

木苺の茂みに
type: MusicRecording
duration: PT3M15S
duration ms: 195893
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901300188
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T22:49:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43a4530e823f2cbf81c14ed9984cbba790e7d39781b49a752f797ed972c88e30
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1QGaNuxRrNNCRWVm5RIKZG.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1QGaNuxRrNNCRWVm5RIKZG
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43a4530e823f2cbf81c14ed9984cbba790e7d39781b49a752f797ed972c88e30","isrc":"JPU901300188","name":"木苺の茂みに","registered_at":"2026-06-22T22:49:34Z","spotify_id":"1QGaNuxRrNNCRWVm5RIKZG","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a4530e823f2cbf81c14ed9984cbba790e7d39781b49a752f797ed972c88e30. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1QGaNuxRrNNCRWVm5RIKZG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1QGaNuxRrNNCRWVm5RIKZG.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x43a4530e823f2cbf81c14ed9984cbba790e7d39781b49a752f797ed972c88e30","isrc":"JPU901300188","name":"木苺の茂みに","registered_at":"2026-06-22T22:49:34Z","spotify_id":"1QGaNuxRrNNCRWVm5RIKZG","type":"track"}

満天
type: MusicRecording
duration: PT5M12S
duration ms: 312786
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901200382
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T07:11:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/78j1pgpLYJb0ltrWvWpa8z.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/78j1pgpLYJb0ltrWvWpa8z
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"78j1pgpLYJb0ltrWvWpa8z","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/78j1pgpLYJb0ltrWvWpa8z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/78j1pgpLYJb0ltrWvWpa8z.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"78j1pgpLYJb0ltrWvWpa8z","type":"track"}

to the beginning
type: MusicRecording
duration: PT4M16S
duration ms: 256613
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901200381
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:09:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5aZYyAIBmLSXTlez59ZvZ7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5aZYyAIBmLSXTlez59ZvZ7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"5aZYyAIBmLSXTlez59ZvZ7","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5aZYyAIBmLSXTlez59ZvZ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5aZYyAIBmLSXTlez59ZvZ7.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"5aZYyAIBmLSXTlez59ZvZ7","type":"track"}

ひかりふる
type: MusicRecording
duration: PT4M53S
duration ms: 293853
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901201401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:43:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2Bc9VKcoyaYbpnnjKacdKJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Bc9VKcoyaYbpnnjKacdKJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"2Bc9VKcoyaYbpnnjKacdKJ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Bc9VKcoyaYbpnnjKacdKJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Bc9VKcoyaYbpnnjKacdKJ.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"2Bc9VKcoyaYbpnnjKacdKJ","type":"track"}

夢の大地
type: MusicRecording
duration: PT4M1S
duration ms: 241666
explicit: false
by artist: Kalafina
in album: Consolation
  type: MusicAlbum
  date published: 2013-03-20
isrc code: JPU901300189
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T15:39:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0NEKJu7tVHo3hWg7aA0XZJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0NEKJu7tVHo3hWg7aA0XZJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713","isrc":"JPU901300189","name":"夢の大地","registered_at":"2026-06-09T15:39:44Z","spotify_id":"0NEKJu7tVHo3hWg7aA0XZJ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0NEKJu7tVHo3hWg7aA0XZJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0NEKJu7tVHo3hWg7aA0XZJ.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x420ec95a3ec75147a4fdce0d81be2e5a64df2cbd4a91f28f8ffa08b679c01713","isrc":"JPU901300189","name":"夢の大地","registered_at":"2026-06-09T15:39:44Z","spotify_id":"0NEKJu7tVHo3hWg7aA0XZJ","type":"track"}

Kalafina 5th Anniversary Live Selection 2009-2012
type: MusicAlbum
date published: 2013-01-23
track: Overture Seventh Heaven - Live
  type: MusicRecording
  duration: PT7M24S
  duration ms: 444706
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201877
track: Fairytale - Live
  type: MusicRecording
  duration: PT7M42S
  duration ms: 462346
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201893
track: Oblivious - Live
  type: MusicRecording
  duration: PT5M41S
  duration ms: 341173
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201878
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T20:49:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6e6879837dcfb66a6d8bc65b8e3bca6cb2a209d68f5aed9535ff8dec7c4b257e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7CoEcgBGzGNhiulImUOlAB.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7CoEcgBGzGNhiulImUOlAB
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6e6879837dcfb66a6d8bc65b8e3bca6cb2a209d68f5aed9535ff8dec7c4b257e","isrc":"JPU901201878","name":"Oblivious - Live","registered_at":"2026-06-26T20:49:54Z","spotify_id":"7CoEcgBGzGNhiulImUOlAB","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6879837dcfb66a6d8bc65b8e3bca6cb2a209d68f5aed9535ff8dec7c4b257e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7CoEcgBGzGNhiulImUOlAB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7CoEcgBGzGNhiulImUOlAB.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x6e6879837dcfb66a6d8bc65b8e3bca6cb2a209d68f5aed9535ff8dec7c4b257e","isrc":"JPU901201878","name":"Oblivious - Live","registered_at":"2026-06-26T20:49:54Z","spotify_id":"7CoEcgBGzGNhiulImUOlAB","type":"track"}
track: Intermezzo - Live
  type: MusicRecording
  duration: PT1M48S
  duration ms: 108906
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201894
track: Natsu No Ringo - Live
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247266
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201879
track: Red Moon - Live
  type: MusicRecording
  duration: PT6M36S
  duration ms: 396826
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201895
track: Serenato - Live
  type: MusicRecording
  duration: PT5M25S
  duration ms: 325053
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201880
track: Progressive - Live
  type: MusicRecording
  duration: PT5M47S
  duration ms: 347280
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201896
track: Lirica - Live
  type: MusicRecording
  duration: PT5M17S
  duration ms: 317693
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201881
track: Kyrie - Live
  type: MusicRecording
  duration: PT5M37S
  duration ms: 337680
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201897
track: Lacrimosa - Live
  type: MusicRecording
  duration: PT4M34S
  duration ms: 274066
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201882
track: Ongaku - Live
  type: MusicRecording
  duration: PT7M4S
  duration ms: 424293
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201898
track: Ashita No Keshiki - Live
  type: MusicRecording
  duration: PT5M42S
  duration ms: 342493
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201883
track: Sprinter - Acoustic Version - - Live
  type: MusicRecording
  duration: PT6M35S
  duration ms: 395080
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201899
track: Storia - Live
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233680
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201884
track: Overture Eden - Live
  type: MusicRecording
  duration: PT7M25S
  duration ms: 445520
  explicit: false
  by artist: Kalafina
  in album: Kalafina 5th Anniversary Live Selection 2009-2012
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: JPU901201900
track: Kizuato - Live
track: Hikari No Senritsu - Live
track: Kimi Ga Hikari Ni Kaeteyuku - Live
track: Overture Manten - Live
track: Interlude Zeroichi - Live
track: Magia - Live
track: Aria - Live
track: To the Beginning - Live
track: Gloria - Live
track: Symphonia - Live
track: Utsukushisa - Live
track: Mata Kaze Ga Tsuyokunatta - Live
track: Kagayaku Sorano Shijimaniha - Live

Kizuato - Live
type: MusicRecording
duration: PT4M48S
duration ms: 288600
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201885

Hikari No Senritsu - Live
type: MusicRecording
duration: PT6M22S
duration ms: 382866
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201901

Kimi Ga Hikari Ni Kaeteyuku - Live
type: MusicRecording
duration: PT4M21S
duration ms: 261333
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201886

Overture Manten - Live
type: MusicRecording
duration: PT6M16S
duration ms: 376786
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201902

Interlude Zeroichi - Live
type: MusicRecording
duration: PT2M32S
duration ms: 152773
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201887

Magia - Live
type: MusicRecording
duration: PT5M18S
duration ms: 318266
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201903

Aria - Live
type: MusicRecording
duration: PT5M31S
duration ms: 331306
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201888

To the Beginning - Live
type: MusicRecording
duration: PT4M25S
duration ms: 265906
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201904
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T20:48:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5897ed2a0147e16ee56e44597110d5a547c5c4fe451f9f008caf199075aa69eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/38dxlraSZ5scy1CN9kAGAu.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/38dxlraSZ5scy1CN9kAGAu
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5897ed2a0147e16ee56e44597110d5a547c5c4fe451f9f008caf199075aa69eb","isrc":"JPU901201904","name":"To the Beginning - Live","registered_at":"2026-06-26T20:48:04Z","spotify_id":"38dxlraSZ5scy1CN9kAGAu","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5897ed2a0147e16ee56e44597110d5a547c5c4fe451f9f008caf199075aa69eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/38dxlraSZ5scy1CN9kAGAu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/38dxlraSZ5scy1CN9kAGAu.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x5897ed2a0147e16ee56e44597110d5a547c5c4fe451f9f008caf199075aa69eb","isrc":"JPU901201904","name":"To the Beginning - Live","registered_at":"2026-06-26T20:48:04Z","spotify_id":"38dxlraSZ5scy1CN9kAGAu","type":"track"}

Gloria - Live
type: MusicRecording
duration: PT3M41S
duration ms: 221986
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201889

Symphonia - Live
type: MusicRecording
duration: PT6M18S
duration ms: 378133
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201905

Utsukushisa - Live
type: MusicRecording
duration: PT4M37S
duration ms: 277466
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201890

Mata Kaze Ga Tsuyokunatta - Live
type: MusicRecording
duration: PT5M2S
duration ms: 302333
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201891

Kagayaku Sorano Shijimaniha - Live
type: MusicRecording
duration: PT5M32S
duration ms: 332333
explicit: false
by artist: Kalafina
in album: Kalafina 5th Anniversary Live Selection 2009-2012
  type: MusicAlbum
  date published: 2013-01-23
isrc code: JPU901201892
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T00:33:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x312dc2f2d4e79d91de9fcf8b69fd838577c2910dbedf06cc8257116a26d73c52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0feuTxoFkgCj8sESLCGqpJ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0feuTxoFkgCj8sESLCGqpJ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x312dc2f2d4e79d91de9fcf8b69fd838577c2910dbedf06cc8257116a26d73c52","isrc":"JPU901201892","name":"Kagayaku Sorano Shijimaniha - Live","registered_at":"2026-06-27T00:33:40Z","spotify_id":"0feuTxoFkgCj8sESLCGqpJ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312dc2f2d4e79d91de9fcf8b69fd838577c2910dbedf06cc8257116a26d73c52. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0feuTxoFkgCj8sESLCGqpJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0feuTxoFkgCj8sESLCGqpJ.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x312dc2f2d4e79d91de9fcf8b69fd838577c2910dbedf06cc8257116a26d73c52","isrc":"JPU901201892","name":"Kagayaku Sorano Shijimaniha - Live","registered_at":"2026-06-27T00:33:40Z","spotify_id":"0feuTxoFkgCj8sESLCGqpJ","type":"track"}

After Eden
type: MusicAlbum
date published: 2011-09-21
track: Eden
  type: MusicRecording
  duration: PT5M40S
  duration ms: 340373
  explicit: false
  by artist: Kalafina
  in album: After Eden
    type: MusicAlbum
    date published: 2011-09-21
  isrc code: JPU901100941
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T21:11:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d856420c94b91663bf67598ae7a2baae31a6f0daa5bc00094e6157e8b4fdf6d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4P6n0xBWx7Le63lOAu7Gvm.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4P6n0xBWx7Le63lOAu7Gvm
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d856420c94b91663bf67598ae7a2baae31a6f0daa5bc00094e6157e8b4fdf6d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4P6n0xBWx7Le63lOAu7Gvm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4P6n0xBWx7Le63lOAu7Gvm.
    date published: 2026-07-02T03:55:08Z
track: sandpiper
  type: MusicRecording
  duration: PT6M3S
  duration ms: 363053
  explicit: false
  by artist: Kalafina
  in album: After Eden
    type: MusicAlbum
    date published: 2011-09-21
  isrc code: JPU901100942
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T03:06:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa385b63f8f5c69308c7ae40a39bd3efad1e8c783ab217557c738b4d63b3fac52
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6DyfYNBPRFxvxkyZAfaY0s.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6DyfYNBPRFxvxkyZAfaY0s
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa385b63f8f5c69308c7ae40a39bd3efad1e8c783ab217557c738b4d63b3fac52. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6DyfYNBPRFxvxkyZAfaY0s.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6DyfYNBPRFxvxkyZAfaY0s.
    date published: 2026-07-02T03:55:08Z
track: Magia
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312933
  explicit: false
  by artist: Kalafina
  in album: After Eden
    type: MusicAlbum
    date published: 2011-09-21
  isrc code: JPU901001841
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T11:17:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3Wi9rMCDDLqmMUaBV09IV7.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Wi9rMCDDLqmMUaBV09IV7
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Wi9rMCDDLqmMUaBV09IV7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Wi9rMCDDLqmMUaBV09IV7.
    date published: 2026-06-13T15:41:10Z
track: 九月
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222133
  explicit: false
  by artist: Kalafina
  in album: After Eden
    type: MusicAlbum
    date published: 2011-09-21
  isrc code: JPU901100943
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T07:33:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe0c7f594f05430c9302f759e0c30db46da146f8acfe2893bb5028392ee62e48e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4JrASFUGwmeneZe47HpIR3.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4JrASFUGwmeneZe47HpIR3
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xe0c7f594f05430c9302f759e0c30db46da146f8acfe2893bb5028392ee62e48e","isrc":"JPU901100943","name":"九月","registered_at":"2026-06-19T07:33:43Z","spotify_id":"4JrASFUGwmeneZe47HpIR3","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c7f594f05430c9302f759e0c30db46da146f8acfe2893bb5028392ee62e48e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4JrASFUGwmeneZe47HpIR3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4JrASFUGwmeneZe47HpIR3.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xe0c7f594f05430c9302f759e0c30db46da146f8acfe2893bb5028392ee62e48e","isrc":"JPU901100943","name":"九月","registered_at":"2026-06-19T07:33:43Z","spotify_id":"4JrASFUGwmeneZe47HpIR3","type":"track"}
track: in your eyes
  type: MusicRecording
  duration: PT6M3S
  duration ms: 363120
  explicit: false
  by artist: Kalafina
  in album: After Eden
    type: MusicAlbum
    date published: 2011-09-21
  isrc code: JPU901100944
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T08:14:41+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: destination unknown
track: neverending
track: ことのは
track: magnolia
track: 輝く空の静寂には
track: 胸の行方
track: snow falling
track: symphonia

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe874b64447b4605d0b2d2e5e94235e60a05a9f74aa447f4ed11c32706719923c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956304

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/4FIcJrNDwn52VzCvmMDoF5.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4FIcJrNDwn52VzCvmMDoF5

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xe874b64447b4605d0b2d2e5e94235e60a05a9f74aa447f4ed11c32706719923c","isrc":"JPU901100944","name":"in your eyes","registered_at":"2026-06-24T08:14:41Z","spotify_id":"4FIcJrNDwn52VzCvmMDoF5","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe874b64447b4605d0b2d2e5e94235e60a05a9f74aa447f4ed11c32706719923c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4FIcJrNDwn52VzCvmMDoF5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4FIcJrNDwn52VzCvmMDoF5.
date published: 2026-07-02T03:55:08Z
text: {"copyright_id":"0xe874b64447b4605d0b2d2e5e94235e60a05a9f74aa447f4ed11c32706719923c","isrc":"JPU901100944","name":"in your eyes","registered_at":"2026-06-24T08:14:41Z","spotify_id":"4FIcJrNDwn52VzCvmMDoF5","type":"track"}

destination unknown
type: MusicRecording
duration: PT5M5S
duration ms: 305706
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901100945
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:37:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe50f95ea568c38fe79694ee8216d870a9a089f00ba8a4c26738b6a3c6cbbe0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/24nn4H2odGCZ4B1FrBWHnm.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24nn4H2odGCZ4B1FrBWHnm
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe50f95ea568c38fe79694ee8216d870a9a089f00ba8a4c26738b6a3c6cbbe0a","isrc":"JPU901100945","name":"destination unknown","registered_at":"2026-06-10T15:37:58Z","spotify_id":"24nn4H2odGCZ4B1FrBWHnm","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe50f95ea568c38fe79694ee8216d870a9a089f00ba8a4c26738b6a3c6cbbe0a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24nn4H2odGCZ4B1FrBWHnm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24nn4H2odGCZ4B1FrBWHnm.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xbe50f95ea568c38fe79694ee8216d870a9a089f00ba8a4c26738b6a3c6cbbe0a","isrc":"JPU901100945","name":"destination unknown","registered_at":"2026-06-10T15:37:58Z","spotify_id":"24nn4H2odGCZ4B1FrBWHnm","type":"track"}

neverending
type: MusicRecording
duration: PT4M23S
duration ms: 263333
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901100946
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T00:49:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c53ab8494bb4aea0f12b4092e65d0874fe40ac5fb3f980dea1812900001ce4f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1uLjaEmmoOmV1tskbku5Rq.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1uLjaEmmoOmV1tskbku5Rq
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c53ab8494bb4aea0f12b4092e65d0874fe40ac5fb3f980dea1812900001ce4f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1uLjaEmmoOmV1tskbku5Rq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1uLjaEmmoOmV1tskbku5Rq.
  date published: 2026-06-13T17:25:41Z

ことのは
type: MusicRecording
duration: PT2M45S
duration ms: 165893
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901100947
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T08:15:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09bfcb2b5ac235aa49f4560f0fe90fe60a9bd266e65b7ec86e0c1c6def2aa802
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6JGuKdtYY8mfg9smbiCA3W.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6JGuKdtYY8mfg9smbiCA3W
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x09bfcb2b5ac235aa49f4560f0fe90fe60a9bd266e65b7ec86e0c1c6def2aa802","isrc":"JPU901100947","name":"ことのは","registered_at":"2026-06-24T08:15:52Z","spotify_id":"6JGuKdtYY8mfg9smbiCA3W","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bfcb2b5ac235aa49f4560f0fe90fe60a9bd266e65b7ec86e0c1c6def2aa802. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JGuKdtYY8mfg9smbiCA3W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6JGuKdtYY8mfg9smbiCA3W.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x09bfcb2b5ac235aa49f4560f0fe90fe60a9bd266e65b7ec86e0c1c6def2aa802","isrc":"JPU901100947","name":"ことのは","registered_at":"2026-06-24T08:15:52Z","spotify_id":"6JGuKdtYY8mfg9smbiCA3W","type":"track"}

magnolia
type: MusicRecording
duration: PT5M48S
duration ms: 348573
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901100948
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:50:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbc08190b51d1743ca793222684e75aa9792ef5650fa0fe857a5053c008a39c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/00z83xthFKMBrXx9qXkTkU.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/00z83xthFKMBrXx9qXkTkU
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc08190b51d1743ca793222684e75aa9792ef5650fa0fe857a5053c008a39c1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/00z83xthFKMBrXx9qXkTkU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/00z83xthFKMBrXx9qXkTkU.
  date published: 2026-07-02T03:30:09Z

輝く空の静寂には
type: MusicRecording
duration: PT4M14S
duration ms: 254120
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901001121
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:44:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3n4MLZyy29Cqpa2SNxGSWv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3n4MLZyy29Cqpa2SNxGSWv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"3n4MLZyy29Cqpa2SNxGSWv","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3n4MLZyy29Cqpa2SNxGSWv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3n4MLZyy29Cqpa2SNxGSWv.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"3n4MLZyy29Cqpa2SNxGSWv","type":"track"}

胸の行方
type: MusicRecording
duration: PT6M18S
duration ms: 378773
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901100949
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T19:54:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63540fb04e3ee411fb819f8d19d0d4659f95ca5260db1e58e08a1e8ca0de4a26
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5rRARE7QRnjOvZ4PMlFBqB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5rRARE7QRnjOvZ4PMlFBqB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63540fb04e3ee411fb819f8d19d0d4659f95ca5260db1e58e08a1e8ca0de4a26","isrc":"JPU901100949","name":"胸の行方","registered_at":"2026-06-21T19:54:42Z","spotify_id":"5rRARE7QRnjOvZ4PMlFBqB","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63540fb04e3ee411fb819f8d19d0d4659f95ca5260db1e58e08a1e8ca0de4a26. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5rRARE7QRnjOvZ4PMlFBqB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5rRARE7QRnjOvZ4PMlFBqB.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x63540fb04e3ee411fb819f8d19d0d4659f95ca5260db1e58e08a1e8ca0de4a26","isrc":"JPU901100949","name":"胸の行方","registered_at":"2026-06-21T19:54:42Z","spotify_id":"5rRARE7QRnjOvZ4PMlFBqB","type":"track"}

snow falling
type: MusicRecording
duration: PT4M40S
duration ms: 280573
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901002001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T02:07:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/099cRaZUYXe6FpyQYUrQwt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/099cRaZUYXe6FpyQYUrQwt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499","isrc":"JPU901002001","name":"snow falling","registered_at":"2026-06-10T02:07:35Z","spotify_id":"099cRaZUYXe6FpyQYUrQwt","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/099cRaZUYXe6FpyQYUrQwt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/099cRaZUYXe6FpyQYUrQwt.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499","isrc":"JPU901002001","name":"snow falling","registered_at":"2026-06-10T02:07:35Z","spotify_id":"099cRaZUYXe6FpyQYUrQwt","type":"track"}

symphonia
type: MusicRecording
duration: PT5M44S
duration ms: 344693
explicit: false
by artist: Kalafina
in album: After Eden
  type: MusicAlbum
  date published: 2011-09-21
isrc code: JPU901100950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T06:06:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13d31789fe78f5f965dcc4343c538fb2a602e1bd2a5d9f0ca2f8fbcb2968adeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4ypD8tQ6rbIHxFjp9WfqfQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ypD8tQ6rbIHxFjp9WfqfQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d31789fe78f5f965dcc4343c538fb2a602e1bd2a5d9f0ca2f8fbcb2968adeb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ypD8tQ6rbIHxFjp9WfqfQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ypD8tQ6rbIHxFjp9WfqfQ.
  date published: 2026-06-13T17:25:41Z

Red Moon
type: MusicAlbum
date published: 2010-03-17
track: red moon
  type: MusicRecording
  duration: PT6M40S
  duration ms: 400133
  explicit: false
  by artist: Kalafina
  in album: Red Moon
    type: MusicAlbum
    date published: 2010-03-17
  isrc code: JPU901000101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T12:20:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953515
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7rfqoFRIC9VLaTJ0OPVAmr.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7rfqoFRIC9VLaTJ0OPVAmr
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de","isrc":"JPU901000101","name":"red moon","registered_at":"2026-06-07T12:20:24Z","spotify_id":"7rfqoFRIC9VLaTJ0OPVAmr","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7rfqoFRIC9VLaTJ0OPVAmr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7rfqoFRIC9VLaTJ0OPVAmr.
    date published: 2026-06-13T12:53:06Z
    text: {"copyright_id":"0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de","isrc":"JPU901000101","name":"red moon","registered_at":"2026-06-07T12:20:24Z","spotify_id":"7rfqoFRIC9VLaTJ0OPVAmr","type":"track"}
track: 光の旋律
  type: MusicRecording
  duration: PT6M13S
  duration ms: 373760
  explicit: false
  by artist: Kalafina
  in album: Red Moon
    type: MusicAlbum
    date published: 2010-03-17
  isrc code: JPU900901981
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:06:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4kGCEIEGq8R8k3PBGZHAMW.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kGCEIEGq8R8k3PBGZHAMW
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"4kGCEIEGq8R8k3PBGZHAMW","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kGCEIEGq8R8k3PBGZHAMW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kGCEIEGq8R8k3PBGZHAMW.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"4kGCEIEGq8R8k3PBGZHAMW","type":"track"}
track: テトテトメトメ
  type: MusicRecording
  duration: PT4M52S
  duration ms: 292026
  explicit: false
  by artist: Kalafina
  in album: Red Moon
    type: MusicAlbum
    date published: 2010-03-17
  isrc code: JPU901000102
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T01:19:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd6f7d524a7402ef821444b89ee86b73f85a752c5c0b3dc9ae0316d07e704bcda
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5NcSAZOB6jy79HaxNHdcvz.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5NcSAZOB6jy79HaxNHdcvz
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd6f7d524a7402ef821444b89ee86b73f85a752c5c0b3dc9ae0316d07e704bcda","isrc":"JPU901000102","name":"テトテトメトメ","registered_at":"2026-06-20T01:19:18Z","spotify_id":"5NcSAZOB6jy79HaxNHdcvz","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f7d524a7402ef821444b89ee86b73f85a752c5c0b3dc9ae0316d07e704bcda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5NcSAZOB6jy79HaxNHdcvz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5NcSAZOB6jy79HaxNHdcvz.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xd6f7d524a7402ef821444b89ee86b73f85a752c5c0b3dc9ae0316d07e704bcda","isrc":"JPU901000102","name":"テトテトメトメ","registered_at":"2026-06-20T01:19:18Z","spotify_id":"5NcSAZOB6jy79HaxNHdcvz","type":"track"}
track: fantasia
  type: MusicRecording
  duration: PT5M21S
  duration ms: 321333
  explicit: false
  by artist: Kalafina
  in album: Red Moon
    type: MusicAlbum
    date published: 2010-03-17
  isrc code: JPU901000103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T13:02:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x171af1502b2ce9b984f982116c954b7fc2c63dfa5d6c8617d476942ee4b78724
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2qRaDZGPVGJ5ICAti6W71f.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2qRaDZGPVGJ5ICAti6W71f
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171af1502b2ce9b984f982116c954b7fc2c63dfa5d6c8617d476942ee4b78724. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qRaDZGPVGJ5ICAti6W71f.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2qRaDZGPVGJ5ICAti6W71f.
    date published: 2026-07-02T03:55:08Z
track: 春は黄金の夢の中
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235560
  explicit: false
  by artist: Kalafina
  in album: Red Moon
    type: MusicAlbum
    date published: 2010-03-17
  isrc code: JPU901000104
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Kyrie
track: 闇の唄
track: 星の謡
track: storia
track: intermezzo
track: progressive
track: Lacrimosa
track: I have a dream

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-21T20:02:20+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb79e4d56e4a3078c8e9a9ed40628d8e2214f0c598b6d25017f203b4d290792c8

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956302

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/956302

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/2vaoZAei4CIeETa46Gxybi.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2vaoZAei4CIeETa46Gxybi

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:30:09Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xb79e4d56e4a3078c8e9a9ed40628d8e2214f0c598b6d25017f203b4d290792c8","isrc":"JPU901000104","name":"春は黄金の夢の中","registered_at":"2026-06-21T20:02:20Z","spotify_id":"2vaoZAei4CIeETa46Gxybi","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79e4d56e4a3078c8e9a9ed40628d8e2214f0c598b6d25017f203b4d290792c8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2vaoZAei4CIeETa46Gxybi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2vaoZAei4CIeETa46Gxybi.
date published: 2026-07-02T03:30:09Z
text: {"copyright_id":"0xb79e4d56e4a3078c8e9a9ed40628d8e2214f0c598b6d25017f203b4d290792c8","isrc":"JPU901000104","name":"春は黄金の夢の中","registered_at":"2026-06-21T20:02:20Z","spotify_id":"2vaoZAei4CIeETa46Gxybi","type":"track"}

Kyrie
type: MusicRecording
duration: PT5M32S
duration ms: 332906
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T14:37:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2e6e2464284e7998862fea5004aff11b43b13c31dc45f713d63a43729853775
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7ARjpZQQtniufKjLtTMEPv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ARjpZQQtniufKjLtTMEPv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e6e2464284e7998862fea5004aff11b43b13c31dc45f713d63a43729853775. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ARjpZQQtniufKjLtTMEPv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ARjpZQQtniufKjLtTMEPv.
  date published: 2026-06-13T15:41:10Z

闇の唄
type: MusicRecording
duration: PT5M2S
duration ms: 302360
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:39:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x965435c946872143bfd41b25b89cf30f56cd4494018b371e1a4958493dc96333
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4IUo5qKHHPCAzucLCh9WBr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4IUo5qKHHPCAzucLCh9WBr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x965435c946872143bfd41b25b89cf30f56cd4494018b371e1a4958493dc96333","isrc":"JPU901000106","name":"闇の唄","registered_at":"2026-06-19T07:39:57Z","spotify_id":"4IUo5qKHHPCAzucLCh9WBr","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965435c946872143bfd41b25b89cf30f56cd4494018b371e1a4958493dc96333. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4IUo5qKHHPCAzucLCh9WBr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4IUo5qKHHPCAzucLCh9WBr.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x965435c946872143bfd41b25b89cf30f56cd4494018b371e1a4958493dc96333","isrc":"JPU901000106","name":"闇の唄","registered_at":"2026-06-19T07:39:57Z","spotify_id":"4IUo5qKHHPCAzucLCh9WBr","type":"track"}

星の謡
type: MusicRecording
duration: PT4M50S
duration ms: 290346
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T11:48:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0tUKBvOsukVmXcUyIsMV8z.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0tUKBvOsukVmXcUyIsMV8z
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db","isrc":"JPU901000107","name":"星の謡","registered_at":"2026-06-18T11:48:20Z","spotify_id":"0tUKBvOsukVmXcUyIsMV8z","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0tUKBvOsukVmXcUyIsMV8z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0tUKBvOsukVmXcUyIsMV8z.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db","isrc":"JPU901000107","name":"星の謡","registered_at":"2026-06-18T11:48:20Z","spotify_id":"0tUKBvOsukVmXcUyIsMV8z","type":"track"}

storia
type: MusicRecording
duration: PT3M38S
duration ms: 218040
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900900744
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T02:36:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/57W3wuQ2Igq10ed6ILflyw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/57W3wuQ2Igq10ed6ILflyw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/57W3wuQ2Igq10ed6ILflyw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/57W3wuQ2Igq10ed6ILflyw.
  date published: 2026-06-13T15:41:10Z

intermezzo
type: MusicRecording
duration: PT2M0S
duration ms: 120160
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:02:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8795e7c2f64583a6846c4c7b055bb9347f68c1b5e3942353d2aa4eae886ead8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0LX0PK7MBsNL85LcKiaPUt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LX0PK7MBsNL85LcKiaPUt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8795e7c2f64583a6846c4c7b055bb9347f68c1b5e3942353d2aa4eae886ead8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0LX0PK7MBsNL85LcKiaPUt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LX0PK7MBsNL85LcKiaPUt.
  date published: 2026-07-02T03:55:08Z

progressive
type: MusicRecording
duration: PT5M42S
duration ms: 342493
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900901464
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:36:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05f83639d704cb2a03aada1584b1b5b7e0991a3fa5ad1345ca095bc08df921b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/24hQL4CzqjHny6hMrDWnu1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24hQL4CzqjHny6hMrDWnu1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f83639d704cb2a03aada1584b1b5b7e0991a3fa5ad1345ca095bc08df921b2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24hQL4CzqjHny6hMrDWnu1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24hQL4CzqjHny6hMrDWnu1.
  date published: 2026-07-02T03:55:08Z

Lacrimosa
type: MusicRecording
duration: PT4M14S
duration ms: 254720
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900900028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:27:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7elSn9tGQTOgVghLzJN1yX.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7elSn9tGQTOgVghLzJN1yX
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7elSn9tGQTOgVghLzJN1yX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7elSn9tGQTOgVghLzJN1yX.
  date published: 2026-06-13T12:47:07Z

I have a dream
type: MusicRecording
duration: PT5M56S
duration ms: 356920
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000061
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:41:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3MVVWILc4rTIBPeaMEctYs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3MVVWILc4rTIBPeaMEctYs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af","isrc":"JPU901000061","name":"I have a dream","registered_at":"2026-06-19T07:41:19Z","spotify_id":"3MVVWILc4rTIBPeaMEctYs","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3MVVWILc4rTIBPeaMEctYs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3MVVWILc4rTIBPeaMEctYs.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af","isrc":"JPU901000061","name":"I have a dream","registered_at":"2026-06-19T07:41:19Z","spotify_id":"3MVVWILc4rTIBPeaMEctYs","type":"track"}

Seventh Heaven
type: MusicAlbum
date published: 2009-03-04
track: overture
  type: MusicRecording
  duration: PT1M34S
  duration ms: 94533
  explicit: false
  by artist: Kalafina
  in album: Seventh Heaven
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900900021
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T18:23:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf9617713bb1e4d3af64040dc07e30de5fc953c3cbd75eaab416b7d70715f0ce6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4miNgvKU9x0TWqBFqiYciS.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4miNgvKU9x0TWqBFqiYciS
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9617713bb1e4d3af64040dc07e30de5fc953c3cbd75eaab416b7d70715f0ce6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4miNgvKU9x0TWqBFqiYciS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4miNgvKU9x0TWqBFqiYciS.
    date published: 2026-06-13T13:32:09Z
track: oblivious
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262493
  explicit: false
  by artist: Kalafina
  in album: Seventh Heaven
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900702341
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T13:57:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3OGhAh9RuI0BcC1oBhiTnz.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3OGhAh9RuI0BcC1oBhiTnz
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3OGhAh9RuI0BcC1oBhiTnz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3OGhAh9RuI0BcC1oBhiTnz.
    date published: 2026-06-13T15:41:10Z
track: love come down
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284413
  explicit: false
  by artist: Kalafina
  in album: Seventh Heaven
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900900023
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T11:20:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x79ed255acd744a2cb7dcc52e11c6dd1f0d9d60d526ba1efe74dcab4ae6ddd56f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/34Wrt2CB9O8g6lJu8nv37x.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34Wrt2CB9O8g6lJu8nv37x
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x79ed255acd744a2cb7dcc52e11c6dd1f0d9d60d526ba1efe74dcab4ae6ddd56f","isrc":"JPU900900023","name":"love come down","registered_at":"2026-06-18T11:20:54Z","spotify_id":"34Wrt2CB9O8g6lJu8nv37x","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ed255acd744a2cb7dcc52e11c6dd1f0d9d60d526ba1efe74dcab4ae6ddd56f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/34Wrt2CB9O8g6lJu8nv37x.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34Wrt2CB9O8g6lJu8nv37x.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x79ed255acd744a2cb7dcc52e11c6dd1f0d9d60d526ba1efe74dcab4ae6ddd56f","isrc":"JPU900900023","name":"love come down","registered_at":"2026-06-18T11:20:54Z","spotify_id":"34Wrt2CB9O8g6lJu8nv37x","type":"track"}
track: 夏の林檎
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242760
  explicit: false
  by artist: Kalafina
  in album: Seventh Heaven
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900900026
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T15:36:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/24XR3oCgPGERU7Iu4el4dB.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24XR3oCgPGERU7Iu4el4dB
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb","isrc":"JPU900900026","name":"夏の林檎","registered_at":"2026-06-09T15:36:09Z","spotify_id":"24XR3oCgPGERU7Iu4el4dB","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/24XR3oCgPGERU7Iu4el4dB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24XR3oCgPGERU7Iu4el4dB.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x3dafdfb2a596968a6089ba47d4bf644c2ad81dd4bb6e57cd79db3f3b27773eeb","isrc":"JPU900900026","name":"夏の林檎","registered_at":"2026-06-09T15:36:09Z","spotify_id":"24XR3oCgPGERU7Iu4el4dB","type":"track"}
track: fairytale
  type: MusicRecording
  duration: PT5M13S
  duration ms: 313053
  explicit: false
  by artist: Kalafina
  in album: Seventh Heaven
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900802701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: ARIA
track: また風が強くなった
track: 傷跡
track: serenato
track: 音楽
track: 明日の景色
track: sprinter
track: 君が光に変えて行く
track: seventh heaven

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-07T12:21:02+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x3d8faa5afd03a31463a0301f16d7e3ac301b99fa59ff12dd700f8d40862c82de

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953528

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/3e83FRNghGlSyLuTO6UqNB.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3e83FRNghGlSyLuTO6UqNB

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

OTSCanonicalRecord
type: PropertyValue

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8faa5afd03a31463a0301f16d7e3ac301b99fa59ff12dd700f8d40862c82de. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3e83FRNghGlSyLuTO6UqNB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3e83FRNghGlSyLuTO6UqNB.
date published: 2026-06-13T15:41:10Z

ARIA
type: MusicRecording
duration: PT5M23S
duration ms: 323946
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900801527
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:05:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6I1hV9NMDrwhbymhdA2P8X.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6I1hV9NMDrwhbymhdA2P8X
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6I1hV9NMDrwhbymhdA2P8X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6I1hV9NMDrwhbymhdA2P8X.
  date published: 2026-06-13T15:41:10Z

また風が強くなった
type: MusicRecording
duration: PT4M56S
duration ms: 296946
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900900022
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T07:36:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x267f371e8ec1649830ff0ba1dbce7c02943f570c84a7cf404c33f4fbe06a3e8a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1PHuyIkboE1xcrzg0IRKEW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PHuyIkboE1xcrzg0IRKEW
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x267f371e8ec1649830ff0ba1dbce7c02943f570c84a7cf404c33f4fbe06a3e8a","isrc":"JPU900900022","name":"また風が強くなった","registered_at":"2026-06-19T07:36:20Z","spotify_id":"1PHuyIkboE1xcrzg0IRKEW","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267f371e8ec1649830ff0ba1dbce7c02943f570c84a7cf404c33f4fbe06a3e8a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PHuyIkboE1xcrzg0IRKEW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PHuyIkboE1xcrzg0IRKEW.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x267f371e8ec1649830ff0ba1dbce7c02943f570c84a7cf404c33f4fbe06a3e8a","isrc":"JPU900900022","name":"また風が強くなった","registered_at":"2026-06-19T07:36:20Z","spotify_id":"1PHuyIkboE1xcrzg0IRKEW","type":"track"}

傷跡
type: MusicRecording
duration: PT4M39S
duration ms: 279573
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900702343
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T21:39:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/44Ocqty5uLJRVsCHkw9EAQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/44Ocqty5uLJRVsCHkw9EAQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f","isrc":"JPU900702343","name":"傷跡","registered_at":"2026-06-06T21:39:08Z","spotify_id":"44Ocqty5uLJRVsCHkw9EAQ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/44Ocqty5uLJRVsCHkw9EAQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/44Ocqty5uLJRVsCHkw9EAQ.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f","isrc":"JPU900702343","name":"傷跡","registered_at":"2026-06-06T21:39:08Z","spotify_id":"44Ocqty5uLJRVsCHkw9EAQ","type":"track"}

serenato
type: MusicRecording
duration: PT4M53S
duration ms: 293146
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900802702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:43:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53d4dbd540ae4a5037daeb4730bfa7204acaff520c27bae55fd2691de7de50a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1GahVE98RPgqBymlM1RDV6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1GahVE98RPgqBymlM1RDV6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d4dbd540ae4a5037daeb4730bfa7204acaff520c27bae55fd2691de7de50a1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1GahVE98RPgqBymlM1RDV6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1GahVE98RPgqBymlM1RDV6.
  date published: 2026-06-13T13:32:09Z

音楽
type: MusicRecording
duration: PT5M38S
duration ms: 338333
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900900024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:25:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5j4Gh5fe212KPM3e6nqEKA.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5j4Gh5fe212KPM3e6nqEKA
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65","isrc":"JPU900900024","name":"音楽","registered_at":"2026-06-10T15:25:00Z","spotify_id":"5j4Gh5fe212KPM3e6nqEKA","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5j4Gh5fe212KPM3e6nqEKA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5j4Gh5fe212KPM3e6nqEKA.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x5dab7021bb4aa8e4b5e7f4d0de7af356986e9d8f740d49861c068b722b77bf65","isrc":"JPU900900024","name":"音楽","registered_at":"2026-06-10T15:25:00Z","spotify_id":"5j4Gh5fe212KPM3e6nqEKA","type":"track"}

明日の景色
type: MusicRecording
duration: PT5M25S
duration ms: 325400
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900900025
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:05:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe46d05429329f52e0426610a58947eda1f4a3118a5bae0b3ed3469b4e8f360f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2eei3UospqZj4cTvijJ00U.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2eei3UospqZj4cTvijJ00U
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe46d05429329f52e0426610a58947eda1f4a3118a5bae0b3ed3469b4e8f360f9","isrc":"JPU900900025","name":"明日の景色","registered_at":"2026-06-18T13:05:13Z","spotify_id":"2eei3UospqZj4cTvijJ00U","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46d05429329f52e0426610a58947eda1f4a3118a5bae0b3ed3469b4e8f360f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2eei3UospqZj4cTvijJ00U.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2eei3UospqZj4cTvijJ00U.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xe46d05429329f52e0426610a58947eda1f4a3118a5bae0b3ed3469b4e8f360f9","isrc":"JPU900900025","name":"明日の景色","registered_at":"2026-06-18T13:05:13Z","spotify_id":"2eei3UospqZj4cTvijJ00U","type":"track"}

sprinter
type: MusicRecording
duration: PT5M4S
duration ms: 304680
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900801526
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T02:32:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0bcx668BzdSiDYZqX17oTT.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0bcx668BzdSiDYZqX17oTT
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0bcx668BzdSiDYZqX17oTT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0bcx668BzdSiDYZqX17oTT.
  date published: 2026-06-13T15:41:10Z

君が光に変えて行く
type: MusicRecording
duration: PT4M42S
duration ms: 282720
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900702342
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T06:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2RJOyFCB4IQP2Z61U5vhEa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2RJOyFCB4IQP2Z61U5vhEa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329","isrc":"JPU900702342","name":"君が光に変えて行く","registered_at":"2026-06-07T06:17:27Z","spotify_id":"2RJOyFCB4IQP2Z61U5vhEa","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2RJOyFCB4IQP2Z61U5vhEa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2RJOyFCB4IQP2Z61U5vhEa.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329","isrc":"JPU900702342","name":"君が光に変えて行く","registered_at":"2026-06-07T06:17:27Z","spotify_id":"2RJOyFCB4IQP2Z61U5vhEa","type":"track"}

seventh heaven
type: MusicRecording
duration: PT6M12S
duration ms: 372000
explicit: false
by artist: Kalafina
in album: Seventh Heaven
  type: MusicAlbum
  date published: 2009-03-04
isrc code: JPU900900027
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T01:53:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7JacNwkrKr3LqGFGzkpUlb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JacNwkrKr3LqGFGzkpUlb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168","isrc":"JPU900900027","name":"seventh heaven","registered_at":"2026-06-08T01:53:17Z","spotify_id":"7JacNwkrKr3LqGFGzkpUlb","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JacNwkrKr3LqGFGzkpUlb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JacNwkrKr3LqGFGzkpUlb.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x83cad0f9d37788e9cd8f106d7aff5c567964c66643a18ce0dd3f633202b5c168","isrc":"JPU900900027","name":"seventh heaven","registered_at":"2026-06-08T01:53:17Z","spotify_id":"7JacNwkrKr3LqGFGzkpUlb","type":"track"}

百火撩乱
type: MusicAlbum
date published: 2017-08-09
track: 百火撩乱
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280786
  explicit: false
  by artist: Kalafina
  in album: 百火撩乱
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPU901701856
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T18:47:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6L4e6VVh1HA2908lmgdSII.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6L4e6VVh1HA2908lmgdSII
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4","isrc":"JPU901701856","name":"百火撩乱","registered_at":"2026-06-07T18:47:17Z","spotify_id":"6L4e6VVh1HA2908lmgdSII","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6L4e6VVh1HA2908lmgdSII.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6L4e6VVh1HA2908lmgdSII.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4","isrc":"JPU901701856","name":"百火撩乱","registered_at":"2026-06-07T18:47:17Z","spotify_id":"6L4e6VVh1HA2908lmgdSII","type":"track"}
track: カンタンカタン
  type: MusicRecording
  duration: PT5M33S
  duration ms: 333520
  explicit: false
  by artist: Kalafina
  in album: 百火撩乱
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPU901701857
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T06:06:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3IZljpwPmFQZfCKL1I1FhB.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IZljpwPmFQZfCKL1I1FhB
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d","isrc":"JPU901701857","name":"カンタンカタン","registered_at":"2026-06-11T06:06:07Z","spotify_id":"3IZljpwPmFQZfCKL1I1FhB","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IZljpwPmFQZfCKL1I1FhB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IZljpwPmFQZfCKL1I1FhB.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d","isrc":"JPU901701857","name":"カンタンカタン","registered_at":"2026-06-11T06:06:07Z","spotify_id":"3IZljpwPmFQZfCKL1I1FhB","type":"track"}
track: とんぼ
  type: MusicRecording
  duration: PT3M33S
  duration ms: 213973
  explicit: false
  by artist: Kalafina
  in album: 百火撩乱
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPU901701858
track: 百火撩乱-instrumental-
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280800
  explicit: false
  by artist: Kalafina
  in album: 百火撩乱
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPU901701859
track: カンタンカタン-instrumental-
  type: MusicRecording
  duration: PT5M32S
  duration ms: 332186
  explicit: false
  by artist: Kalafina
  in album: 百火撩乱
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPU901701860

百火撩乱 TVサイズ
type: MusicAlbum
date published: 2017-07-12
track: 百火撩乱 TVサイズ
  type: MusicRecording
  duration: PT1M36S
  duration ms: 96453
  explicit: false
  by artist: Kalafina
  in album: 百火撩乱 TVサイズ
    type: MusicAlbum
    date published: 2017-07-12
  isrc code: JPU901701862

into the world/メルヒェン
type: MusicAlbum
date published: 2017-04-05
track: into the world
  type: MusicRecording
  duration: PT5M42S
  duration ms: 342213
  explicit: false
  by artist: Kalafina
  in album: into the world/メルヒェン
    type: MusicAlbum
    date published: 2017-04-05
  isrc code: JPU901700468
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T01:51:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7zPBvnaJuPKWcxovP6sZto.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7zPBvnaJuPKWcxovP6sZto
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08","isrc":"JPU901700468","name":"into the world","registered_at":"2026-06-08T01:51:25Z","spotify_id":"7zPBvnaJuPKWcxovP6sZto","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7zPBvnaJuPKWcxovP6sZto.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7zPBvnaJuPKWcxovP6sZto.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x62ed9d94c5307d60ae82765b6059b1644807ea7772243c38151ccbaccce25b08","isrc":"JPU901700468","name":"into the world","registered_at":"2026-06-08T01:51:25Z","spotify_id":"7zPBvnaJuPKWcxovP6sZto","type":"track"}
track: メルヒェン
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205240
  explicit: false
  by artist: Kalafina
  in album: into the world/メルヒェン
    type: MusicAlbum
    date published: 2017-04-05
  isrc code: JPU901700469
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T18:26:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956349
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6E05sfLat3Upl0lkLkZEcM.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6E05sfLat3Upl0lkLkZEcM
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689","isrc":"JPU901700469","name":"メルヒェン","registered_at":"2026-06-08T18:26:26Z","spotify_id":"6E05sfLat3Upl0lkLkZEcM","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6E05sfLat3Upl0lkLkZEcM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6E05sfLat3Upl0lkLkZEcM.
    date published: 2026-07-02T11:34:59Z
    text: {"copyright_id":"0x6b18e2aa49f5fc8441d7028e91207d42a64dc872b8f9f3ccde432b85aa495689","isrc":"JPU901700469","name":"メルヒェン","registered_at":"2026-06-08T18:26:26Z","spotify_id":"6E05sfLat3Upl0lkLkZEcM","type":"track"}
track: 春を待つ
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230226
  explicit: false
  by artist: Kalafina
  in album: into the world/メルヒェン
    type: MusicAlbum
    date published: 2017-04-05
  isrc code: JPU901700470
track: into the world 〜instrumental〜
  type: MusicRecording
  duration: PT5M40S
  duration ms: 340080
  explicit: false
  by artist: Kalafina
  in album: into the world/メルヒェン
    type: MusicAlbum
    date published: 2017-04-05
  isrc code: JPU901700471

blaze
type: MusicAlbum
date published: 2016-08-10
track: blaze
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243786
  explicit: false
  by artist: Kalafina
  in album: blaze
    type: MusicAlbum
    date published: 2016-08-10
  isrc code: JPU901601567
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T12:19:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78cce3eaecb79b40a6aab27ff851524526a3933a7650584cf2da6d3d0604f4fe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3eAv0smsl7OIoXKcvKrksC.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3eAv0smsl7OIoXKcvKrksC
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cce3eaecb79b40a6aab27ff851524526a3933a7650584cf2da6d3d0604f4fe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3eAv0smsl7OIoXKcvKrksC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3eAv0smsl7OIoXKcvKrksC.
    date published: 2026-07-02T03:55:08Z
track: 夏の朝
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224986
  explicit: false
  by artist: Kalafina
  in album: blaze
    type: MusicAlbum
    date published: 2016-08-10
  isrc code: JPU901601568
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T22:49:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc72e3d203e04d6b825260d9145e4662227f93f08e100b8867118db4527cf370a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2EAMFpBtp3tOgxRkr2xUkX.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2EAMFpBtp3tOgxRkr2xUkX
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc72e3d203e04d6b825260d9145e4662227f93f08e100b8867118db4527cf370a","isrc":"JPU901601568","name":"夏の朝","registered_at":"2026-06-17T22:49:22Z","spotify_id":"2EAMFpBtp3tOgxRkr2xUkX","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72e3d203e04d6b825260d9145e4662227f93f08e100b8867118db4527cf370a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2EAMFpBtp3tOgxRkr2xUkX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2EAMFpBtp3tOgxRkr2xUkX.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0xc72e3d203e04d6b825260d9145e4662227f93f08e100b8867118db4527cf370a","isrc":"JPU901601568","name":"夏の朝","registered_at":"2026-06-17T22:49:22Z","spotify_id":"2EAMFpBtp3tOgxRkr2xUkX","type":"track"}
track: blaze 〜instrumental〜
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243800
  explicit: false
  by artist: Kalafina
  in album: blaze
    type: MusicAlbum
    date published: 2016-08-10
  isrc code: JPU901601569
track: 夏の朝 〜instrumental〜
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222666
  explicit: false
  by artist: Kalafina
  in album: blaze
    type: MusicAlbum
    date published: 2016-08-10
  isrc code: JPU901601570

One Light
type: MusicAlbum
date published: 2015-08-12
track: One Light
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284066
  explicit: false
  by artist: Kalafina
  in album: One Light
    type: MusicAlbum
    date published: 2015-08-12
  isrc code: JPU901501873
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T18:40:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3j8J11yp8XJyHSLcP5OK1q.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3j8J11yp8XJyHSLcP5OK1q
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795","isrc":"JPU901501873","name":"One Light","registered_at":"2026-06-07T18:40:41Z","spotify_id":"3j8J11yp8XJyHSLcP5OK1q","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3j8J11yp8XJyHSLcP5OK1q.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3j8J11yp8XJyHSLcP5OK1q.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x036c3bb7798236d250cc7e7cb2eef29570980e08d476ca91a182c54c7134e795","isrc":"JPU901501873","name":"One Light","registered_at":"2026-06-07T18:40:41Z","spotify_id":"3j8J11yp8XJyHSLcP5OK1q","type":"track"}
track: 真昼
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233546
  explicit: false
  by artist: Kalafina
  in album: One Light
    type: MusicAlbum
    date published: 2015-08-12
  isrc code: JPU901501874
track: 五月雨が過ぎた頃に
  type: MusicRecording
  duration: PT4M21S
  duration ms: 261545
  explicit: false
  by artist: Kalafina
  in album: One Light
    type: MusicAlbum
    date published: 2015-08-12
  isrc code: JPU901501875
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T16:28:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe5e8ac3016c3248fe5e7f46f42ff549ed46da49892be0b93f6f10cce1125ce26
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7qhRpkBVDUWAdQlP04JDYX.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7qhRpkBVDUWAdQlP04JDYX
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xe5e8ac3016c3248fe5e7f46f42ff549ed46da49892be0b93f6f10cce1125ce26","isrc":"JPU901501875","name":"五月雨が過ぎた頃に","registered_at":"2026-06-10T16:28:07Z","spotify_id":"7qhRpkBVDUWAdQlP04JDYX","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e8ac3016c3248fe5e7f46f42ff549ed46da49892be0b93f6f10cce1125ce26. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7qhRpkBVDUWAdQlP04JDYX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7qhRpkBVDUWAdQlP04JDYX.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xe5e8ac3016c3248fe5e7f46f42ff549ed46da49892be0b93f6f10cce1125ce26","isrc":"JPU901501875","name":"五月雨が過ぎた頃に","registered_at":"2026-06-10T16:28:07Z","spotify_id":"7qhRpkBVDUWAdQlP04JDYX","type":"track"}
track: One Light 〜instrumental〜
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280906
  explicit: false
  by artist: Kalafina
  in album: One Light
    type: MusicAlbum
    date published: 2015-08-12
  isrc code: JPU901501876

One Light〜TV size〜
type: MusicAlbum
date published: 2015-07-15
track: One Light〜TV size〜
  type: MusicRecording
  duration: PT1M33S
  duration ms: 93666
  explicit: false
  by artist: Kalafina
  in album: One Light〜TV size〜
    type: MusicAlbum
    date published: 2015-07-15
  isrc code: JPU901501877

ring your bell
type: MusicAlbum
date published: 2015-05-13
track: ring your bell
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316533
  explicit: false
  by artist: Kalafina
  in album: ring your bell
    type: MusicAlbum
    date published: 2015-05-13
  isrc code: JPU901501042
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T11:44:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6GHMBep0v40pSejtpr87qP.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6GHMBep0v40pSejtpr87qP
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc","isrc":"JPU901501042","name":"ring your bell","registered_at":"2026-06-05T11:44:19Z","spotify_id":"6GHMBep0v40pSejtpr87qP","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6GHMBep0v40pSejtpr87qP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6GHMBep0v40pSejtpr87qP.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0xed0904e4cae4ec32977f2042120bcb66269fb2301e1f40c3f4e72c2da4aaadfc","isrc":"JPU901501042","name":"ring your bell","registered_at":"2026-06-05T11:44:19Z","spotify_id":"6GHMBep0v40pSejtpr87qP","type":"track"}
track: こいびとの昔語りの夕暮れの
  type: MusicRecording
  duration: PT5M6S
  duration ms: 306426
  explicit: false
  by artist: Kalafina
  in album: ring your bell
    type: MusicAlbum
    date published: 2015-05-13
  isrc code: JPU901501043
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T20:46:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4272b253640371d9a42dfacd0710bfa6c2522cbb2ddb07e40c18e84164b210c7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3h6yrAHBAfhrGL8kkvyhp9.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3h6yrAHBAfhrGL8kkvyhp9
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x4272b253640371d9a42dfacd0710bfa6c2522cbb2ddb07e40c18e84164b210c7","isrc":"JPU901501043","name":"こいびとの昔語りの夕暮れの","registered_at":"2026-06-26T20:46:18Z","spotify_id":"3h6yrAHBAfhrGL8kkvyhp9","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4272b253640371d9a42dfacd0710bfa6c2522cbb2ddb07e40c18e84164b210c7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3h6yrAHBAfhrGL8kkvyhp9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3h6yrAHBAfhrGL8kkvyhp9.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x4272b253640371d9a42dfacd0710bfa6c2522cbb2ddb07e40c18e84164b210c7","isrc":"JPU901501043","name":"こいびとの昔語りの夕暮れの","registered_at":"2026-06-26T20:46:18Z","spotify_id":"3h6yrAHBAfhrGL8kkvyhp9","type":"track"}
track: ring your bell (in the silence)
  type: MusicRecording
  duration: PT1M35S
  duration ms: 95653
  explicit: false
  by artist: Kalafina
  in album: ring your bell
    type: MusicAlbum
    date published: 2015-05-13
  isrc code: JPU901501044
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T06:59:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x19c180a30a1373b67daeb61f3b5c710b7a15ac5692fc248dafa898e9ba74b092
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3LK5GrMCZ0FZNGKJc2uChG.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3LK5GrMCZ0FZNGKJc2uChG
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x19c180a30a1373b67daeb61f3b5c710b7a15ac5692fc248dafa898e9ba74b092","isrc":"JPU901501044","name":"ring your bell (in the silence)","registered_at":"2026-06-09T06:59:07Z","spotify_id":"3LK5GrMCZ0FZNGKJc2uChG","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c180a30a1373b67daeb61f3b5c710b7a15ac5692fc248dafa898e9ba74b092. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3LK5GrMCZ0FZNGKJc2uChG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3LK5GrMCZ0FZNGKJc2uChG.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x19c180a30a1373b67daeb61f3b5c710b7a15ac5692fc248dafa898e9ba74b092","isrc":"JPU901501044","name":"ring your bell (in the silence)","registered_at":"2026-06-09T06:59:07Z","spotify_id":"3LK5GrMCZ0FZNGKJc2uChG","type":"track"}
track: ring your bell〜instrumental〜
  type: MusicRecording
  duration: PT5M14S
  duration ms: 314880
  explicit: false
  by artist: Kalafina
  in album: ring your bell
    type: MusicAlbum
    date published: 2015-05-13
  isrc code: JPU901501045

believe
type: MusicAlbum
date published: 2014-11-19
track: believe
  type: MusicRecording
  duration: PT4M51S
  duration ms: 291960
  explicit: false
  by artist: Kalafina
  in album: believe
    type: MusicAlbum
    date published: 2014-11-19
  isrc code: JPU901401789
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T16:38:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x28d1d6207794dc27676149f4eba08e1a5cae432ebb81569537c8f0737d3952d3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1eBsxduwgDTVM0y86EGNvG.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1eBsxduwgDTVM0y86EGNvG
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d1d6207794dc27676149f4eba08e1a5cae432ebb81569537c8f0737d3952d3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1eBsxduwgDTVM0y86EGNvG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1eBsxduwgDTVM0y86EGNvG.
    date published: 2026-07-02T03:30:09Z
track: in every nothing
  type: MusicRecording
  duration: PT4M36S
  duration ms: 276133
  explicit: false
  by artist: Kalafina
  in album: believe
    type: MusicAlbum
    date published: 2014-11-19
  isrc code: JPU901401790
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T18:11:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0b00546bb03cb92ab47de7bfa64cf4161f6a83344fe630ea35492cd933c1c95d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956349
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2jeyvaWUDcboKaU7a0BlK9.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jeyvaWUDcboKaU7a0BlK9
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x0b00546bb03cb92ab47de7bfa64cf4161f6a83344fe630ea35492cd933c1c95d","isrc":"JPU901401790","name":"in every nothing","registered_at":"2026-06-25T18:11:36Z","spotify_id":"2jeyvaWUDcboKaU7a0BlK9","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b00546bb03cb92ab47de7bfa64cf4161f6a83344fe630ea35492cd933c1c95d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2jeyvaWUDcboKaU7a0BlK9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2jeyvaWUDcboKaU7a0BlK9.
    date published: 2026-07-02T11:34:59Z
    text: {"copyright_id":"0x0b00546bb03cb92ab47de7bfa64cf4161f6a83344fe630ea35492cd933c1c95d","isrc":"JPU901401790","name":"in every nothing","registered_at":"2026-06-25T18:11:36Z","spotify_id":"2jeyvaWUDcboKaU7a0BlK9","type":"track"}
track: lapis
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228346
  explicit: false
  by artist: Kalafina
  in album: believe
    type: MusicAlbum
    date published: 2014-11-19
  isrc code: JPU901401791
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T05:13:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1797a8a230623433e437ecc0c94b5a8dc1538d6f22fb726aa7bc94ecd6b2f887
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5iCn65wMH4G5lTYiXvmjuZ.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5iCn65wMH4G5lTYiXvmjuZ
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1797a8a230623433e437ecc0c94b5a8dc1538d6f22fb726aa7bc94ecd6b2f887. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5iCn65wMH4G5lTYiXvmjuZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5iCn65wMH4G5lTYiXvmjuZ.
    date published: 2026-07-02T03:55:08Z
track: believe 〜instrumental〜
  type: MusicRecording
  duration: PT4M49S
  duration ms: 289640
  explicit: false
  by artist: Kalafina
  in album: believe
    type: MusicAlbum
    date published: 2014-11-19
  isrc code: JPU901401792

君の銀の庭
type: MusicAlbum
date published: 2013-11-06
track: 君の銀の庭
  type: MusicRecording
  duration: PT5M7S
  duration ms: 307200
  explicit: false
  by artist: Kalafina
  in album: 君の銀の庭
    type: MusicAlbum
    date published: 2013-11-06
  isrc code: JPU901301237
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:03:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5z0sTqtZ73NliGt9LYjUO4.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5z0sTqtZ73NliGt9LYjUO4
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"5z0sTqtZ73NliGt9LYjUO4","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5z0sTqtZ73NliGt9LYjUO4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5z0sTqtZ73NliGt9LYjUO4.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"5z0sTqtZ73NliGt9LYjUO4","type":"track"}
track: misterioso
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242013
  explicit: false
  by artist: Kalafina
  in album: 君の銀の庭
    type: MusicAlbum
    date published: 2013-11-06
  isrc code: JPU901301238
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:54:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1UdAcNwonnmKUjZR5n8FrT.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1UdAcNwonnmKUjZR5n8FrT
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1UdAcNwonnmKUjZR5n8FrT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1UdAcNwonnmKUjZR5n8FrT.
    date published: 2026-06-13T17:25:41Z
track: 追憶
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277226
  explicit: false
  by artist: Kalafina
  in album: 君の銀の庭
    type: MusicAlbum
    date published: 2013-11-06
  isrc code: JPU901301239
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T06:06:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6dJPs7BYtZjAt4pPKtexAN.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dJPs7BYtZjAt4pPKtexAN
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0","isrc":"JPU901301239","name":"追憶","registered_at":"2026-06-11T06:06:11Z","spotify_id":"6dJPs7BYtZjAt4pPKtexAN","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dJPs7BYtZjAt4pPKtexAN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dJPs7BYtZjAt4pPKtexAN.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0","isrc":"JPU901301239","name":"追憶","registered_at":"2026-06-11T06:06:11Z","spotify_id":"6dJPs7BYtZjAt4pPKtexAN","type":"track"}
track: 君の銀の庭 instrumental
  type: MusicRecording
  duration: PT5M6S
  duration ms: 306440
  explicit: false
  by artist: Kalafina
  in album: 君の銀の庭
    type: MusicAlbum
    date published: 2013-11-06
  isrc code: JPU901301240

アレルヤ
type: MusicAlbum
date published: 2013-10-02
track: アレルヤ
  type: MusicRecording
  duration: PT5M7S
  duration ms: 307040
  explicit: false
  by artist: Kalafina
  in album: アレルヤ
    type: MusicAlbum
    date published: 2013-10-02
  isrc code: JPU901301161
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T16:38:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1KX5CpYeuwYDv2bjeV1ZMP.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KX5CpYeuwYDv2bjeV1ZMP
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695","isrc":"JPU901301161","name":"アレルヤ","registered_at":"2026-06-09T16:38:40Z","spotify_id":"1KX5CpYeuwYDv2bjeV1ZMP","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KX5CpYeuwYDv2bjeV1ZMP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KX5CpYeuwYDv2bjeV1ZMP.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xdf8315bf6b66ee58cf06a62bf46881ae0a3606d2cef108b080ee565f6f9e6695","isrc":"JPU901301161","name":"アレルヤ","registered_at":"2026-06-09T16:38:40Z","spotify_id":"1KX5CpYeuwYDv2bjeV1ZMP","type":"track"}
track: dolce
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172973
  explicit: false
  by artist: Kalafina
  in album: アレルヤ
    type: MusicAlbum
    date published: 2013-10-02
  isrc code: JPU901301162
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T19:07:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2a67082b21c44d341bbeb313e4e920238426587a4ddb6208726f9b4519218954
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956889
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4io7YVii1piRoqAUaxB3fv.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4io7YVii1piRoqAUaxB3fv
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67082b21c44d341bbeb313e4e920238426587a4ddb6208726f9b4519218954. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4io7YVii1piRoqAUaxB3fv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4io7YVii1piRoqAUaxB3fv.
    date published: 2026-07-06T06:56:49Z
track: seventh heaven 〜2012Christmas LIVE ver.〜
  type: MusicRecording
  duration: PT6M19S
  duration ms: 379306
  explicit: false
  by artist: Kalafina
  in album: アレルヤ
    type: MusicAlbum
    date published: 2013-10-02
  isrc code: JPU901301163
track: snow falling〜2012 Christmas LIVE ver.〜
  type: MusicRecording
  duration: PT5M19S
  duration ms: 319640
  explicit: false
  by artist: Kalafina
  in album: アレルヤ
    type: MusicAlbum
    date published: 2013-10-02
  isrc code: JPU901301164

ひかりふる
type: MusicAlbum
date published: 2012-10-24
track: ひかりふる
  type: MusicRecording
  duration: PT4M51S
  duration ms: 291840
  explicit: false
  by artist: Kalafina
  in album: ひかりふる
    type: MusicAlbum
    date published: 2012-10-24
  isrc code: JPU901201401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T18:43:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/31pVFxgZROGaolgI211Og1.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31pVFxgZROGaolgI211Og1
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"31pVFxgZROGaolgI211Og1","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/31pVFxgZROGaolgI211Og1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31pVFxgZROGaolgI211Og1.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"31pVFxgZROGaolgI211Og1","type":"track"}
track: 未来
  type: MusicRecording
  duration: PT4M32S
  duration ms: 272306
  explicit: false
  by artist: Kalafina
  in album: ひかりふる
    type: MusicAlbum
    date published: 2012-10-24
  isrc code: JPU901201402
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:08:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/210tDGTwv4EKo08kv3Az3K.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/210tDGTwv4EKo08kv3Az3K
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"210tDGTwv4EKo08kv3Az3K","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/210tDGTwv4EKo08kv3Az3K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/210tDGTwv4EKo08kv3Az3K.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"210tDGTwv4EKo08kv3Az3K","type":"track"}
track: Magia[quattro]
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316853
  explicit: false
  by artist: Kalafina
  in album: ひかりふる
    type: MusicAlbum
    date published: 2012-10-24
  isrc code: JPU901201403
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:01:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xea4bc18ffa039fe65e48dec5a36ed52f2213e8b8f751147262287f40a6761cc2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/20z9LowbUSLOowBWW6b4es.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20z9LowbUSLOowBWW6b4es
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4bc18ffa039fe65e48dec5a36ed52f2213e8b8f751147262287f40a6761cc2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/20z9LowbUSLOowBWW6b4es.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20z9LowbUSLOowBWW6b4es.
    date published: 2026-06-13T13:32:09Z
track: ひかりふる instrumental
  type: MusicRecording
  duration: PT4M51S
  duration ms: 291840
  explicit: false
  by artist: Kalafina
  in album: ひかりふる
    type: MusicAlbum
    date published: 2012-10-24
  isrc code: JPU901201404

moonfesta〜ムーンフェスタ〜
type: MusicAlbum
date published: 2012-08-01
track: moonfesta〜ムーンフェスタ〜
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268173
  explicit: false
  by artist: Kalafina
  in album: moonfesta〜ムーンフェスタ〜
    type: MusicAlbum
    date published: 2012-08-01
  isrc code: JPU901200761
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T21:09:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2X5NLrajEoxVinjtKD3q3k.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2X5NLrajEoxVinjtKD3q3k
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"2X5NLrajEoxVinjtKD3q3k","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2X5NLrajEoxVinjtKD3q3k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2X5NLrajEoxVinjtKD3q3k.
    date published: 2026-07-08T03:20:19Z
    text: {"copyright_id":"0x6b081c4486aec67bc021b99ac6924c8db86e6e14de75d3035dfa1dfd4d00f5aa","isrc":"JPU901200761","name":"moonfesta〜ムーンフェスタ〜","registered_at":"2026-06-17T21:09:34Z","spotify_id":"2X5NLrajEoxVinjtKD3q3k","type":"track"}
track: 屋根の向こうに
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269880
  explicit: false
  by artist: Kalafina
  in album: moonfesta〜ムーンフェスタ〜
    type: MusicAlbum
    date published: 2012-08-01
  isrc code: JPU901200762
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T06:06:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4aa1be8f3c8a9662da1fb9f9da3fb1b1255bffe16f1b0a01bfa778e7d5b84b69
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5fmke3KUeSekq4aUFOA92T.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5fmke3KUeSekq4aUFOA92T
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x4aa1be8f3c8a9662da1fb9f9da3fb1b1255bffe16f1b0a01bfa778e7d5b84b69","isrc":"JPU901200762","name":"屋根の向こうに","registered_at":"2026-06-11T06:06:03Z","spotify_id":"5fmke3KUeSekq4aUFOA92T","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa1be8f3c8a9662da1fb9f9da3fb1b1255bffe16f1b0a01bfa778e7d5b84b69. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5fmke3KUeSekq4aUFOA92T.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5fmke3KUeSekq4aUFOA92T.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x4aa1be8f3c8a9662da1fb9f9da3fb1b1255bffe16f1b0a01bfa778e7d5b84b69","isrc":"JPU901200762","name":"屋根の向こうに","registered_at":"2026-06-11T06:06:03Z","spotify_id":"5fmke3KUeSekq4aUFOA92T","type":"track"}
track: moonfesta〜ムーンフェスタ〜 instrumental
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267026
  explicit: false
  by artist: Kalafina
  in album: moonfesta〜ムーンフェスタ〜
    type: MusicAlbum
    date published: 2012-08-01
  isrc code: JPU901200765

to the beginning
type: MusicAlbum
date published: 2012-04-18
track: to the beginning
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256613
  explicit: false
  by artist: Kalafina
  in album: to the beginning
    type: MusicAlbum
    date published: 2012-04-18
  isrc code: JPU901200381
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T08:09:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4mlUBva5IH4qENNhZFCSEL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4mlUBva5IH4qENNhZFCSEL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"4mlUBva5IH4qENNhZFCSEL","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4mlUBva5IH4qENNhZFCSEL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4mlUBva5IH4qENNhZFCSEL.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x6babc94a4db697baf41258f5ec8b0ba55dd7d90133c973f86d169e168e6a3150","isrc":"JPU901200381","name":"to the beginning","registered_at":"2026-06-04T08:09:36Z","spotify_id":"4mlUBva5IH4qENNhZFCSEL","type":"track"}
track: 満天
  type: MusicRecording
  duration: PT5M15S
  duration ms: 315786
  explicit: false
  by artist: Kalafina
  in album: to the beginning
    type: MusicAlbum
    date published: 2012-04-18
  isrc code: JPU901200382
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T07:11:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6U40Vq5skdqrsO7m5aw9Db.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U40Vq5skdqrsO7m5aw9Db
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"6U40Vq5skdqrsO7m5aw9Db","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6U40Vq5skdqrsO7m5aw9Db.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6U40Vq5skdqrsO7m5aw9Db.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x30978e7b597781f25f06873ee3f8afc1fdf57e4ac851b9c66cb5be525aeed9ba","isrc":"JPU901200382","name":"満天","registered_at":"2026-06-05T07:11:37Z","spotify_id":"6U40Vq5skdqrsO7m5aw9Db","type":"track"}
track: to the beginning 〜instrumental〜
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254480
  explicit: false
  by artist: Kalafina
  in album: to the beginning
    type: MusicAlbum
    date published: 2012-04-18
  isrc code: JPU901200383

symphonia TV ver
type: MusicAlbum
date published: 2011-04-06
track: symphonia TV ver
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246093
  explicit: false
  by artist: Kalafina
  in album: symphonia TV ver
    type: MusicAlbum
    date published: 2011-04-06
  isrc code: JPU901100246
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T11:32:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x945768303789c4fa6333792470297ede827ee4f7bc05c3a6bff97eb9379b2635
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6kZEZIspxJBN5xWYFFiAKL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6kZEZIspxJBN5xWYFFiAKL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x945768303789c4fa6333792470297ede827ee4f7bc05c3a6bff97eb9379b2635","isrc":"JPU901100246","name":"symphonia TV ver","registered_at":"2026-06-18T11:32:19Z","spotify_id":"6kZEZIspxJBN5xWYFFiAKL","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945768303789c4fa6333792470297ede827ee4f7bc05c3a6bff97eb9379b2635. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6kZEZIspxJBN5xWYFFiAKL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6kZEZIspxJBN5xWYFFiAKL.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x945768303789c4fa6333792470297ede827ee4f7bc05c3a6bff97eb9379b2635","isrc":"JPU901100246","name":"symphonia TV ver","registered_at":"2026-06-18T11:32:19Z","spotify_id":"6kZEZIspxJBN5xWYFFiAKL","type":"track"}

Magia
type: MusicAlbum
date published: 2011-02-16
track: Magia
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312933
  explicit: false
  by artist: Kalafina
  in album: Magia
    type: MusicAlbum
    date published: 2011-02-16
  isrc code: JPU901001841
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T11:17:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/34q0h9Les2HFVMPLIQVHbI.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34q0h9Les2HFVMPLIQVHbI
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/34q0h9Les2HFVMPLIQVHbI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34q0h9Les2HFVMPLIQVHbI.
    date published: 2026-06-13T12:47:07Z
track: snow falling
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282573
  explicit: false
  by artist: Kalafina
  in album: Magia
    type: MusicAlbum
    date published: 2011-02-16
  isrc code: JPU901002001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T02:07:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/014luMdF1Tm8TzkAdqGy8e.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/014luMdF1Tm8TzkAdqGy8e
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499","isrc":"JPU901002001","name":"snow falling","registered_at":"2026-06-10T02:07:35Z","spotify_id":"014luMdF1Tm8TzkAdqGy8e","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/014luMdF1Tm8TzkAdqGy8e.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/014luMdF1Tm8TzkAdqGy8e.
    date published: 2026-07-08T03:20:19Z
    text: {"copyright_id":"0x886a88b02f3d83fe666f24d75c81013b89eeb525f4e41d7c72f6f86bfc59b499","isrc":"JPU901002001","name":"snow falling","registered_at":"2026-06-10T02:07:35Z","spotify_id":"014luMdF1Tm8TzkAdqGy8e","type":"track"}
track: Magia instrumental
  type: MusicRecording
  duration: PT5M9S
  duration ms: 309106
  explicit: false
  by artist: Kalafina
  in album: Magia
    type: MusicAlbum
    date published: 2011-02-16
  isrc code: JPU901002002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T20:46:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x01d627072f02b5304fc7b0e0d61de5d88da59feda47abcef4b1d4cbebdd078e9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7hD0REH8f0NvPd0OwPKbrd.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7hD0REH8f0NvPd0OwPKbrd
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x01d627072f02b5304fc7b0e0d61de5d88da59feda47abcef4b1d4cbebdd078e9","isrc":"JPU901002002","name":"Magia instrumental","registered_at":"2026-06-26T20:46:16Z","spotify_id":"7hD0REH8f0NvPd0OwPKbrd","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d627072f02b5304fc7b0e0d61de5d88da59feda47abcef4b1d4cbebdd078e9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7hD0REH8f0NvPd0OwPKbrd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7hD0REH8f0NvPd0OwPKbrd.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x01d627072f02b5304fc7b0e0d61de5d88da59feda47abcef4b1d4cbebdd078e9","isrc":"JPU901002002","name":"Magia instrumental","registered_at":"2026-06-26T20:46:16Z","spotify_id":"7hD0REH8f0NvPd0OwPKbrd","type":"track"}

輝く空の静寂には
type: MusicAlbum
date published: 2010-09-15
track: 輝く空の静寂には
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253106
  explicit: false
  by artist: Kalafina
  in album: 輝く空の静寂には
    type: MusicAlbum
    date published: 2010-09-15
  isrc code: JPU901001121
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T11:44:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/34qqPmyjW889PrXbvt0FLy.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34qqPmyjW889PrXbvt0FLy
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"34qqPmyjW889PrXbvt0FLy","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/34qqPmyjW889PrXbvt0FLy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/34qqPmyjW889PrXbvt0FLy.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x7e9b99370aff20040ec453d0fc3e0044d1c2d43fb383b6cdce6c1b2c48f299d8","isrc":"JPU901001121","name":"輝く空の静寂には","registered_at":"2026-06-05T11:44:21Z","spotify_id":"34qqPmyjW889PrXbvt0FLy","type":"track"}
track: adore
  type: MusicRecording
  duration: PT5M16S
  duration ms: 316200
  explicit: false
  by artist: Kalafina
  in album: 輝く空の静寂には
    type: MusicAlbum
    date published: 2010-09-15
  isrc code: JPU901001161
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T16:46:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf37d1423b986ab4613838b517c94db8eb221e5f681a4a021d5f4de26e87d9bd1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6pyi7WUWU01QNKSZTY5MsW.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6pyi7WUWU01QNKSZTY5MsW
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37d1423b986ab4613838b517c94db8eb221e5f681a4a021d5f4de26e87d9bd1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6pyi7WUWU01QNKSZTY5MsW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6pyi7WUWU01QNKSZTY5MsW.
    date published: 2026-06-13T13:32:09Z
track: 輝く空の静寂には〜instrumental〜
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252293
  explicit: false
  by artist: Kalafina
  in album: 輝く空の静寂には
    type: MusicAlbum
    date published: 2010-09-15
  isrc code: JPU901001162

光の旋律
type: MusicAlbum
date published: 2010-01-20
track: 光の旋律
  type: MusicRecording
  duration: PT6M14S
  duration ms: 374253
  explicit: false
  by artist: Kalafina
  in album: 光の旋律
    type: MusicAlbum
    date published: 2010-01-20
  isrc code: JPU900901981
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:06:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5TSUTK3Owagsx6kpq9MGHs.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5TSUTK3Owagsx6kpq9MGHs
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"5TSUTK3Owagsx6kpq9MGHs","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5TSUTK3Owagsx6kpq9MGHs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5TSUTK3Owagsx6kpq9MGHs.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"5TSUTK3Owagsx6kpq9MGHs","type":"track"}
track: sapphire
  type: MusicRecording
  duration: PT3M49S
  duration ms: 229560
  explicit: false
  by artist: Kalafina
  in album: 光の旋律
    type: MusicAlbum
    date published: 2010-01-20
  isrc code: JPU900901982
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T07:54:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2d9d3361e4da3ff8d10dc4efbf56e0fe11995f7f53e3d2510241853b4a3e9c81
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7JMNE59wxhCgsEdTsh9EHR.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JMNE59wxhCgsEdTsh9EHR
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d3361e4da3ff8d10dc4efbf56e0fe11995f7f53e3d2510241853b4a3e9c81. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7JMNE59wxhCgsEdTsh9EHR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7JMNE59wxhCgsEdTsh9EHR.
    date published: 2026-07-02T05:09:12Z
track: 光の旋律(Instrumental)
  type: MusicRecording
  duration: PT6M11S
  duration ms: 371613
  explicit: false
  by artist: Kalafina
  in album: 光の旋律
    type: MusicAlbum
    date published: 2010-01-20
  isrc code: JPU900901983

progressive
type: MusicAlbum
date published: 2009-10-28
track: progressive
  type: MusicRecording
  duration: PT5M45S
  duration ms: 345493
  explicit: false
  by artist: Kalafina
  in album: progressive
    type: MusicAlbum
    date published: 2009-10-28
  isrc code: JPU900901464
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T04:36:20+00:00
track: うつくしさ
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293146
  explicit: false
  by artist: Kalafina
  in album: progressive
    type: MusicAlbum
    date published: 2009-10-28
  isrc code: JPU900901465
track: progressive 〜Instrumental〜
  type: MusicRecording
  duration: PT5M41S
  duration ms: 341333
  explicit: false
  by artist: Kalafina
  in album: progressive
    type: MusicAlbum
    date published: 2009-10-28

storia
type: MusicAlbum
date published: 2009-07-01
track: storia
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218026
  explicit: false
  by artist: Kalafina
  in album: storia
    type: MusicAlbum
    date published: 2009-07-01
  isrc code: JPU900900744
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T02:36:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1tlU5cbyIq3vkzIj21Ux1m.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1tlU5cbyIq3vkzIj21Ux1m
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1tlU5cbyIq3vkzIj21Ux1m.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1tlU5cbyIq3vkzIj21Ux1m.
    date published: 2026-07-02T03:30:09Z
track: lirica
  type: MusicRecording
  duration: PT5M19S
  duration ms: 319720
  explicit: false
  by artist: Kalafina
  in album: storia
    type: MusicAlbum
    date published: 2009-07-01
  isrc code: JPU900900745
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T09:41:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb1ccd5a56cce54ce970df8ddc36ca949086ff2d855cedf7af04267deeab1187c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2iz3QEf157tavEnqelqnco.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2iz3QEf157tavEnqelqnco
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ccd5a56cce54ce970df8ddc36ca949086ff2d855cedf7af04267deeab1187c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2iz3QEf157tavEnqelqnco.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2iz3QEf157tavEnqelqnco.
    date published: 2026-07-02T03:55:08Z
track: storia 〜Instrumental〜
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216880
  explicit: false
  by artist: Kalafina
  in album: storia
    type: MusicAlbum
    date published: 2009-07-01
  isrc code: JPU900900746

Lacrimosa
type: MusicAlbum
date published: 2009-03-04
track: Lacrimosa
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254146
  explicit: false
  by artist: Kalafina
  in album: Lacrimosa
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900900028
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T14:27:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1ABB7aB3KonrXrOQ1hQVuC.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ABB7aB3KonrXrOQ1hQVuC
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ABB7aB3KonrXrOQ1hQVuC.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ABB7aB3KonrXrOQ1hQVuC.
    date published: 2026-07-02T03:30:09Z
track: Gloria
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224973
  explicit: false
  by artist: Kalafina
  in album: Lacrimosa
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900900029
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T16:43:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf305ad5270a39356bbccb47df658c287b1980e10e74d55bac2c947e4bf622197
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3TZfOYS67mtB7scdml7CBj.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3TZfOYS67mtB7scdml7CBj
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf305ad5270a39356bbccb47df658c287b1980e10e74d55bac2c947e4bf622197. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3TZfOYS67mtB7scdml7CBj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3TZfOYS67mtB7scdml7CBj.
    date published: 2026-06-13T13:32:09Z
track: Lacrimosa 〜Instrumental〜
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252880
  explicit: false
  by artist: Kalafina
  in album: Lacrimosa
    type: MusicAlbum
    date published: 2009-03-04
  isrc code: JPU900900030
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T21:02:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa22c864f179835e426fe84d1641202ad69bbc32ca17296dd312fd84cf8b641a5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1YOxFOowaBxbBydlzYyacS.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1YOxFOowaBxbBydlzYyacS
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xa22c864f179835e426fe84d1641202ad69bbc32ca17296dd312fd84cf8b641a5","isrc":"JPU900900030","name":"Lacrimosa 〜Instrumental〜","registered_at":"2026-06-26T21:02:01Z","spotify_id":"1YOxFOowaBxbBydlzYyacS","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22c864f179835e426fe84d1641202ad69bbc32ca17296dd312fd84cf8b641a5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1YOxFOowaBxbBydlzYyacS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1YOxFOowaBxbBydlzYyacS.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0xa22c864f179835e426fe84d1641202ad69bbc32ca17296dd312fd84cf8b641a5","isrc":"JPU900900030","name":"Lacrimosa 〜Instrumental〜","registered_at":"2026-06-26T21:02:01Z","spotify_id":"1YOxFOowaBxbBydlzYyacS","type":"track"}

sprinter
type: MusicAlbum
date published: 2008-07-30
track: sprinter
  type: MusicRecording
  duration: PT5M4S
  duration ms: 304240
  explicit: false
  by artist: Kalafina
  in album: sprinter
    type: MusicAlbum
    date published: 2008-07-30
  isrc code: JPU900801526
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T02:32:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956889
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4Nc8YYU8j3xCLxC1CCU0uY.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Nc8YYU8j3xCLxC1CCU0uY
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Nc8YYU8j3xCLxC1CCU0uY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Nc8YYU8j3xCLxC1CCU0uY.
    date published: 2026-07-06T06:56:49Z

Re/oblivious
type: MusicAlbum
date published: 2008-04-23
track: oblivious 〜 俯瞰風景 mix
  type: MusicRecording
  duration: PT6M35S
  duration ms: 395413
  explicit: false
  by artist: Kalafina
  in album: Re/oblivious
    type: MusicAlbum
    date published: 2008-04-23
  isrc code: JPU900800661
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T18:11:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd74fe078a7351520bdf18b681471b42ed47b8c543807e25d6fe3162e2ed02473
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956349
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956349
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/67tQtyI7J77KBvxjF00Tpz.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/67tQtyI7J77KBvxjF00Tpz
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:34:59Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd74fe078a7351520bdf18b681471b42ed47b8c543807e25d6fe3162e2ed02473","isrc":"JPU900800661","name":"oblivious 〜 俯瞰風景 mix","registered_at":"2026-06-25T18:11:06Z","spotify_id":"67tQtyI7J77KBvxjF00Tpz","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74fe078a7351520bdf18b681471b42ed47b8c543807e25d6fe3162e2ed02473. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/67tQtyI7J77KBvxjF00Tpz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/67tQtyI7J77KBvxjF00Tpz.
    date published: 2026-07-02T11:34:59Z
    text: {"copyright_id":"0xd74fe078a7351520bdf18b681471b42ed47b8c543807e25d6fe3162e2ed02473","isrc":"JPU900800661","name":"oblivious 〜 俯瞰風景 mix","registered_at":"2026-06-25T18:11:06Z","spotify_id":"67tQtyI7J77KBvxjF00Tpz","type":"track"}
track: 君が光に変えて行く 〜 acoustic ver.
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219800
  explicit: false
  by artist: Kalafina
  in album: Re/oblivious
    type: MusicAlbum
    date published: 2008-04-23
  isrc code: JPU900800663
track: 傷跡 〜 piano2 mix
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278160
  explicit: false
  by artist: Kalafina
  in album: Re/oblivious
    type: MusicAlbum
    date published: 2008-04-23
  isrc code: JPU900800665
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T04:19:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x57a9ae490f448aadb55b1891f18e5ae2ce160b0827f4c2787e70cb23955ef75f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1ItCcRkWr50tqCquAzJftl.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ItCcRkWr50tqCquAzJftl
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x57a9ae490f448aadb55b1891f18e5ae2ce160b0827f4c2787e70cb23955ef75f","isrc":"JPU900800665","name":"傷跡 〜 piano2 mix","registered_at":"2026-06-20T04:19:37Z","spotify_id":"1ItCcRkWr50tqCquAzJftl","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a9ae490f448aadb55b1891f18e5ae2ce160b0827f4c2787e70cb23955ef75f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ItCcRkWr50tqCquAzJftl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ItCcRkWr50tqCquAzJftl.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x57a9ae490f448aadb55b1891f18e5ae2ce160b0827f4c2787e70cb23955ef75f","isrc":"JPU900800665","name":"傷跡 〜 piano2 mix","registered_at":"2026-06-20T04:19:37Z","spotify_id":"1ItCcRkWr50tqCquAzJftl","type":"track"}

sprinter/ARIA
type: MusicAlbum
date published: 1970-01-01
track: sprinter
  type: MusicRecording
  duration: PT5M4S
  duration ms: 304240
  explicit: false
  by artist: Kalafina
  in album: sprinter/ARIA
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900801526
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T02:32:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5WfiucnHPXemHuygmVwueu.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5WfiucnHPXemHuygmVwueu
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa61a55b5885a4093aa91bf9ca96123ece2866830b009ec3d0ffafd8bb62f2a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5WfiucnHPXemHuygmVwueu.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5WfiucnHPXemHuygmVwueu.
    date published: 2026-07-02T03:30:09Z
track: ARIA
  type: MusicRecording
  duration: PT5M24S
  duration ms: 324213
  explicit: false
  by artist: Kalafina
  in album: sprinter/ARIA
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900801527
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T09:05:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5JthxTH3C3f4GBa8vTKH6n.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5JthxTH3C3f4GBa8vTKH6n
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5b90350659eb9a780812d95f6609e4e99fef41d3e5113e89ec64d3c50063ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5JthxTH3C3f4GBa8vTKH6n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5JthxTH3C3f4GBa8vTKH6n.
    date published: 2026-07-02T03:55:08Z
track: oblivious (Instrumental)
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262546
  explicit: false
  by artist: Kalafina
  in album: sprinter/ARIA
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900801528

oblivious
type: MusicAlbum
date published: 1970-01-01
track: oblivious
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262946
  explicit: false
  by artist: Kalafina
  in album: oblivious
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900702341
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T13:57:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 954130
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/954130
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/18A2MB01GHZ00DYpk8BHa9.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18A2MB01GHZ00DYpk8BHa9
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-17T20:41:51Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9209b835cdfb8786a4b87d0a416f47b841777367e0ee39d61db828b18245b36c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:41:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/18A2MB01GHZ00DYpk8BHa9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/18A2MB01GHZ00DYpk8BHa9.
    date published: 2026-06-17T20:41:51Z
track: 君が光に変えて行く
  type: MusicRecording
  duration: PT4M43S
  duration ms: 283466
  explicit: false
  by artist: Kalafina
  in album: oblivious
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900702342
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T06:17:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/75RbNXqv1utbkgc56X2j3H.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75RbNXqv1utbkgc56X2j3H
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329","isrc":"JPU900702342","name":"君が光に変えて行く","registered_at":"2026-06-07T06:17:27Z","spotify_id":"75RbNXqv1utbkgc56X2j3H","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75RbNXqv1utbkgc56X2j3H.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75RbNXqv1utbkgc56X2j3H.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xba38d082b9677117e03f39977842eba20d12293b9360e7a8595f57dc5f5fc329","isrc":"JPU900702342","name":"君が光に変えて行く","registered_at":"2026-06-07T06:17:27Z","spotify_id":"75RbNXqv1utbkgc56X2j3H","type":"track"}
track: 傷跡
  type: MusicRecording
  duration: PT4M41S
  duration ms: 281226
  explicit: false
  by artist: Kalafina
  in album: oblivious
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900702343
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T21:39:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4L1Z4nuQZCfr2XGl0smw1t.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4L1Z4nuQZCfr2XGl0smw1t
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f","isrc":"JPU900702343","name":"傷跡","registered_at":"2026-06-06T21:39:08Z","spotify_id":"4L1Z4nuQZCfr2XGl0smw1t","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4L1Z4nuQZCfr2XGl0smw1t.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4L1Z4nuQZCfr2XGl0smw1t.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x60bfbd31d8e866de50b86a4c461947cffd387a4960d5fe3ac93ecdd7f106f05f","isrc":"JPU900702343","name":"傷跡","registered_at":"2026-06-06T21:39:08Z","spotify_id":"4L1Z4nuQZCfr2XGl0smw1t","type":"track"}

fairytale
type: MusicAlbum
date published: 1970-01-01
track: fairytale
  type: MusicRecording
  duration: PT5M14S
  duration ms: 314666
  explicit: false
  by artist: Kalafina
  in album: fairytale
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900802701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T12:21:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d8faa5afd03a31463a0301f16d7e3ac301b99fa59ff12dd700f8d40862c82de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1qLJTRqgolsjee8u7d0cev.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1qLJTRqgolsjee8u7d0cev
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8faa5afd03a31463a0301f16d7e3ac301b99fa59ff12dd700f8d40862c82de. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1qLJTRqgolsjee8u7d0cev.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1qLJTRqgolsjee8u7d0cev.
    date published: 2026-07-02T03:55:08Z
track: serenato
  type: MusicRecording
  duration: PT4M55S
  duration ms: 295466
  explicit: false
  by artist: Kalafina
  in album: fairytale
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900802702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T04:43:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x53d4dbd540ae4a5037daeb4730bfa7204acaff520c27bae55fd2691de7de50a1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5s2L53CEozENzvddP8JTJK.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5s2L53CEozENzvddP8JTJK
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d4dbd540ae4a5037daeb4730bfa7204acaff520c27bae55fd2691de7de50a1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5s2L53CEozENzvddP8JTJK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5s2L53CEozENzvddP8JTJK.
    date published: 2026-07-02T05:09:12Z
track: sprinter 〜Instrumental〜
  type: MusicRecording
  duration: PT5M1S
  duration ms: 301866
  explicit: false
  by artist: Kalafina
  in album: fairytale
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: JPU900802703

「魔法少女まどか☆マギカ」 Music Collection
type: MusicAlbum
date published: 2013-12-25
track: prelude to Act 1
  type: MusicRecording
  duration: PT6M10S
  duration ms: 370746
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Music Collection
    type: MusicAlbum
    date published: 2013-12-25
  isrc code: JPE301302934
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T13:04:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4c514c3c7a1829dccc82ebcaf5e1927a935eb7460fd5ab6c2d1157eb447d384d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0BEnKTrkKp5saTb2iFxnT1.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0BEnKTrkKp5saTb2iFxnT1
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x4c514c3c7a1829dccc82ebcaf5e1927a935eb7460fd5ab6c2d1157eb447d384d","isrc":"JPE301302934","name":"prelude to Act 1","registered_at":"2026-06-07T13:04:45Z","spotify_id":"0BEnKTrkKp5saTb2iFxnT1","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c514c3c7a1829dccc82ebcaf5e1927a935eb7460fd5ab6c2d1157eb447d384d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0BEnKTrkKp5saTb2iFxnT1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0BEnKTrkKp5saTb2iFxnT1.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x4c514c3c7a1829dccc82ebcaf5e1927a935eb7460fd5ab6c2d1157eb447d384d","isrc":"JPE301302934","name":"prelude to Act 1","registered_at":"2026-06-07T13:04:45Z","spotify_id":"0BEnKTrkKp5saTb2iFxnT1","type":"track"}
track: prelude to Act 2
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160266
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Music Collection
    type: MusicAlbum
    date published: 2013-12-25
  isrc code: JPE301302935
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T07:01:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4a7e757d6dbeeff63579157d4c54ba4698e405a74818b77325e8da7fd41d5da9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/48AoZG8lwCE3Kc71mk7YOL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48AoZG8lwCE3Kc71mk7YOL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x4a7e757d6dbeeff63579157d4c54ba4698e405a74818b77325e8da7fd41d5da9","isrc":"JPE301302935","name":"prelude to Act 2","registered_at":"2026-06-09T07:01:33Z","spotify_id":"48AoZG8lwCE3Kc71mk7YOL","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7e757d6dbeeff63579157d4c54ba4698e405a74818b77325e8da7fd41d5da9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/48AoZG8lwCE3Kc71mk7YOL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48AoZG8lwCE3Kc71mk7YOL.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x4a7e757d6dbeeff63579157d4c54ba4698e405a74818b77325e8da7fd41d5da9","isrc":"JPE301302935","name":"prelude to Act 2","registered_at":"2026-06-09T07:01:33Z","spotify_id":"48AoZG8lwCE3Kc71mk7YOL","type":"track"}
track: Scaena felix
  type: MusicRecording
  duration: PT1M50S
  duration ms: 110600
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Music Collection
    type: MusicAlbum
    date published: 2013-12-25
  isrc code: JPE301100665
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T07:01:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f4e5a8c94873e32f2e978e02274f4b9e1a521ba04bb351d140806a6d89816c8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6CVutH3LMC6jcPPIAJCbg2.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CVutH3LMC6jcPPIAJCbg2
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x6f4e5a8c94873e32f2e978e02274f4b9e1a521ba04bb351d140806a6d89816c8","isrc":"JPE301100665","name":"Scaena felix","registered_at":"2026-06-07T07:01:42Z","spotify_id":"6CVutH3LMC6jcPPIAJCbg2","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4e5a8c94873e32f2e978e02274f4b9e1a521ba04bb351d140806a6d89816c8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6CVutH3LMC6jcPPIAJCbg2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CVutH3LMC6jcPPIAJCbg2.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x6f4e5a8c94873e32f2e978e02274f4b9e1a521ba04bb351d140806a6d89816c8","isrc":"JPE301100665","name":"Scaena felix","registered_at":"2026-06-07T07:01:42Z","spotify_id":"6CVutH3LMC6jcPPIAJCbg2","type":"track"}
track: Amicae carae meae
  type: MusicRecording
  duration: PT2M1S
  duration ms: 121360
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Music Collection
    type: MusicAlbum
    date published: 2013-12-25
  isrc code: JPE301101745
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T19:27:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9ffb5c63f27e1165abac94817a035d84219069df3a77d58148d0440827a089ce
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953515
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3DQhOz1jXPsUJs5QGdqsOc.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DQhOz1jXPsUJs5QGdqsOc
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x9ffb5c63f27e1165abac94817a035d84219069df3a77d58148d0440827a089ce","isrc":"JPE301101745","name":"Amicae carae meae","registered_at":"2026-06-07T19:27:44Z","spotify_id":"3DQhOz1jXPsUJs5QGdqsOc","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffb5c63f27e1165abac94817a035d84219069df3a77d58148d0440827a089ce. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3DQhOz1jXPsUJs5QGdqsOc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3DQhOz1jXPsUJs5QGdqsOc.
    date published: 2026-06-13T12:53:06Z
    text: {"copyright_id":"0x9ffb5c63f27e1165abac94817a035d84219069df3a77d58148d0440827a089ce","isrc":"JPE301101745","name":"Amicae carae meae","registered_at":"2026-06-07T19:27:44Z","spotify_id":"3DQhOz1jXPsUJs5QGdqsOc","type":"track"}
track: Postmeridie
  type: MusicRecording
  duration: PT1M40S
  duration ms: 100440
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Music Collection
    type: MusicAlbum
    date published: 2013-12-25
  isrc code: JPE301100661
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Clementia
track: Conturbatio
track: La Fille aux Cheveux de Lin
track: Puella in somnio
track: Pugna infinita
track: Salve, terrae magicae
track: Confessio
track: Desiderium
track: Cor destructum
track: Gradus prohibitus
track: Terror adhaerens
track: Credens justitiam
track: Symposium magarum
track: Sis puella magica!
track: Numquam vincar
track: Inevitabilis
track: Quamobrem?
track: Pugna cum maga
track: Surgam identidem
track: Vocalise Op. 34 no. 14
track: Nux Walpurgis
track: Umbra nigra
track: Sagitta luminis
track: Venari strigas
track: Cubilulum album
track: Agmen clientum
track: Taenia memoriae
track: Signum malum
track: Pergo pugnare
track: Serena ira
track: コネクト
track: Incertus
track: Magia
track: Ave Maria
track: Numquam vincar(Live ver.)
track: Decretum
track: Anima mala
track: また あした
track: and I'm home -Original Master Version.-
track: コネクト -ゲームインスト-

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-06T21:43:14+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xd91949205150b30d17ec2bed3d88fd20cfd9014b87fa3ddcfe53017f94131a19

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953536

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953536

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/2ye6s1u1Xmpam9rpyfIgTa.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ye6s1u1Xmpam9rpyfIgTa

OTSTimestamp
type: PropertyValue
value: 2026-06-13T17:25:41Z

OTSCanonicalRecord
type: PropertyValue

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91949205150b30d17ec2bed3d88fd20cfd9014b87fa3ddcfe53017f94131a19. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ye6s1u1Xmpam9rpyfIgTa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ye6s1u1Xmpam9rpyfIgTa.
date published: 2026-06-13T17:25:41Z

Clementia
type: MusicRecording
duration: PT1M58S
duration ms: 118013
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100658
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T07:04:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9d4c1e6027b40727bd5d13178bf6653007ccc889f5c0a204a639fb01eede682
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1X4GRDoUg3uTj9TFamgUMX.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1X4GRDoUg3uTj9TFamgUMX
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4c1e6027b40727bd5d13178bf6653007ccc889f5c0a204a639fb01eede682. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1X4GRDoUg3uTj9TFamgUMX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1X4GRDoUg3uTj9TFamgUMX.
  date published: 2026-06-13T15:41:10Z

Conturbatio
type: MusicRecording
duration: PT1M28S
duration ms: 88733
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100660
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T16:25:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe29c947389e6199091053bef94ef13c940ed0926a75ee9856283d5c6a31898a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0gJLT6VVo8sfGT2VfP4zLP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gJLT6VVo8sfGT2VfP4zLP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29c947389e6199091053bef94ef13c940ed0926a75ee9856283d5c6a31898a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gJLT6VVo8sfGT2VfP4zLP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gJLT6VVo8sfGT2VfP4zLP.
  date published: 2026-06-13T17:25:41Z

La Fille aux Cheveux de Lin
type: MusicRecording
duration: PT2M34S
duration ms: 154306
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102570
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T14:40:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9171f86f1d3a757e714680f86a0ff205f431a887ffe1e1c64a5ae4bcc35afcf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6Kr3ygaZ9xsOaniA2OYL0A.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Kr3ygaZ9xsOaniA2OYL0A
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9171f86f1d3a757e714680f86a0ff205f431a887ffe1e1c64a5ae4bcc35afcf","isrc":"JPE301102570","name":"La Fille aux Cheveux de Lin","registered_at":"2026-06-09T14:40:58Z","spotify_id":"6Kr3ygaZ9xsOaniA2OYL0A","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9171f86f1d3a757e714680f86a0ff205f431a887ffe1e1c64a5ae4bcc35afcf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Kr3ygaZ9xsOaniA2OYL0A.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Kr3ygaZ9xsOaniA2OYL0A.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xa9171f86f1d3a757e714680f86a0ff205f431a887ffe1e1c64a5ae4bcc35afcf","isrc":"JPE301102570","name":"La Fille aux Cheveux de Lin","registered_at":"2026-06-09T14:40:58Z","spotify_id":"6Kr3ygaZ9xsOaniA2OYL0A","type":"track"}

Puella in somnio
type: MusicRecording
duration: PT1M57S
duration ms: 117733
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100662
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T03:35:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ad3bec2f9d4550d89611d07780a8594ec96ef6926f1970284e9edf6e66db718
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/15qBxGjAD4kWONlicpYpuR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/15qBxGjAD4kWONlicpYpuR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ad3bec2f9d4550d89611d07780a8594ec96ef6926f1970284e9edf6e66db718","isrc":"JPE301100662","name":"Puella in somnio","registered_at":"2026-06-06T03:35:59Z","spotify_id":"15qBxGjAD4kWONlicpYpuR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad3bec2f9d4550d89611d07780a8594ec96ef6926f1970284e9edf6e66db718. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/15qBxGjAD4kWONlicpYpuR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/15qBxGjAD4kWONlicpYpuR.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x9ad3bec2f9d4550d89611d07780a8594ec96ef6926f1970284e9edf6e66db718","isrc":"JPE301100662","name":"Puella in somnio","registered_at":"2026-06-06T03:35:59Z","spotify_id":"15qBxGjAD4kWONlicpYpuR","type":"track"}

Pugna infinita
type: MusicRecording
duration: PT1M55S
duration ms: 115960
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101750
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T19:23:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc64f4959761d7bf506f6a28e975196973c461c196c6dff7758f46955d5f55d88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/58yaRhYKGiBFqvacnpm9Dx.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/58yaRhYKGiBFqvacnpm9Dx
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc64f4959761d7bf506f6a28e975196973c461c196c6dff7758f46955d5f55d88","isrc":"JPE301101750","name":"Pugna infinita","registered_at":"2026-06-08T19:23:39Z","spotify_id":"58yaRhYKGiBFqvacnpm9Dx","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64f4959761d7bf506f6a28e975196973c461c196c6dff7758f46955d5f55d88. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/58yaRhYKGiBFqvacnpm9Dx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/58yaRhYKGiBFqvacnpm9Dx.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xc64f4959761d7bf506f6a28e975196973c461c196c6dff7758f46955d5f55d88","isrc":"JPE301101750","name":"Pugna infinita","registered_at":"2026-06-08T19:23:39Z","spotify_id":"58yaRhYKGiBFqvacnpm9Dx","type":"track"}

Salve, terrae magicae
type: MusicRecording
duration: PT1M31S
duration ms: 91440
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100655
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T23:32:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x639a4a495bf0ae7da75d66b98095cfcb0ba0cb3a674c048c3c2975955f4f4ea5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3NLVCk4lRLSupJqDd1MS6G.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3NLVCk4lRLSupJqDd1MS6G
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x639a4a495bf0ae7da75d66b98095cfcb0ba0cb3a674c048c3c2975955f4f4ea5","isrc":"JPE301100655","name":"Salve, terrae magicae","registered_at":"2026-06-06T23:32:51Z","spotify_id":"3NLVCk4lRLSupJqDd1MS6G","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639a4a495bf0ae7da75d66b98095cfcb0ba0cb3a674c048c3c2975955f4f4ea5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3NLVCk4lRLSupJqDd1MS6G.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3NLVCk4lRLSupJqDd1MS6G.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x639a4a495bf0ae7da75d66b98095cfcb0ba0cb3a674c048c3c2975955f4f4ea5","isrc":"JPE301100655","name":"Salve, terrae magicae","registered_at":"2026-06-06T23:32:51Z","spotify_id":"3NLVCk4lRLSupJqDd1MS6G","type":"track"}

Confessio
type: MusicRecording
duration: PT1M49S
duration ms: 109400
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102565
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:59:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd006a67fc1365f2bd2e759fd96d2f21d251c70dc8479dd960b24e21754b9822b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/69dDnfotBtbj2hVHWpeKhO.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69dDnfotBtbj2hVHWpeKhO
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd006a67fc1365f2bd2e759fd96d2f21d251c70dc8479dd960b24e21754b9822b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69dDnfotBtbj2hVHWpeKhO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69dDnfotBtbj2hVHWpeKhO.
  date published: 2026-06-13T17:25:41Z

Desiderium
type: MusicRecording
duration: PT1M42S
duration ms: 102466
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100659
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T21:09:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f53d3aa369765b2e9e3fe88911c9f3e93411d424025ff94a55b3b38875e1dc3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2nOcNupR8YMJFAB1ew1a7L.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2nOcNupR8YMJFAB1ew1a7L
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f53d3aa369765b2e9e3fe88911c9f3e93411d424025ff94a55b3b38875e1dc3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2nOcNupR8YMJFAB1ew1a7L.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2nOcNupR8YMJFAB1ew1a7L.
  date published: 2026-06-13T15:41:10Z

Cor destructum
type: MusicRecording
duration: PT1M28S
duration ms: 88066
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102563
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T16:28:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8484511e7b17326f21a4f105cc7cc5eba5e091653fd1060b9e69127e6db69b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/01bKOhw02iJm7VXqluohj9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/01bKOhw02iJm7VXqluohj9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8484511e7b17326f21a4f105cc7cc5eba5e091653fd1060b9e69127e6db69b5","isrc":"JPE301102563","name":"Cor destructum","registered_at":"2026-06-10T16:28:15Z","spotify_id":"01bKOhw02iJm7VXqluohj9","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8484511e7b17326f21a4f105cc7cc5eba5e091653fd1060b9e69127e6db69b5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/01bKOhw02iJm7VXqluohj9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/01bKOhw02iJm7VXqluohj9.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xd8484511e7b17326f21a4f105cc7cc5eba5e091653fd1060b9e69127e6db69b5","isrc":"JPE301102563","name":"Cor destructum","registered_at":"2026-06-10T16:28:15Z","spotify_id":"01bKOhw02iJm7VXqluohj9","type":"track"}

Gradus prohibitus
type: MusicRecording
duration: PT3M36S
duration ms: 216093
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100656
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:04:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe25c01b6acbb3b6920959cf5669cedf367b6d51e12ba8e39a4d4e648bd64e0a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4CnyeXWlF4nKQiINkeXCIW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4CnyeXWlF4nKQiINkeXCIW
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe25c01b6acbb3b6920959cf5669cedf367b6d51e12ba8e39a4d4e648bd64e0a1","isrc":"JPE301100656","name":"Gradus prohibitus","registered_at":"2026-06-07T18:04:06Z","spotify_id":"4CnyeXWlF4nKQiINkeXCIW","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25c01b6acbb3b6920959cf5669cedf367b6d51e12ba8e39a4d4e648bd64e0a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4CnyeXWlF4nKQiINkeXCIW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4CnyeXWlF4nKQiINkeXCIW.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0xe25c01b6acbb3b6920959cf5669cedf367b6d51e12ba8e39a4d4e648bd64e0a1","isrc":"JPE301100656","name":"Gradus prohibitus","registered_at":"2026-06-07T18:04:06Z","spotify_id":"4CnyeXWlF4nKQiINkeXCIW","type":"track"}

Terror adhaerens
type: MusicRecording
duration: PT3M49S
duration ms: 229266
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100664
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T07:00:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x771ed03474986ae813b58b7a8d091f8272a0843dbba32c78864588ae34f4a565
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3FnxNuqCgaNJOIIoWStE3O.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3FnxNuqCgaNJOIIoWStE3O
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x771ed03474986ae813b58b7a8d091f8272a0843dbba32c78864588ae34f4a565","isrc":"JPE301100664","name":"Terror adhaerens","registered_at":"2026-06-09T07:00:26Z","spotify_id":"3FnxNuqCgaNJOIIoWStE3O","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771ed03474986ae813b58b7a8d091f8272a0843dbba32c78864588ae34f4a565. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3FnxNuqCgaNJOIIoWStE3O.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3FnxNuqCgaNJOIIoWStE3O.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x771ed03474986ae813b58b7a8d091f8272a0843dbba32c78864588ae34f4a565","isrc":"JPE301100664","name":"Terror adhaerens","registered_at":"2026-06-09T07:00:26Z","spotify_id":"3FnxNuqCgaNJOIIoWStE3O","type":"track"}

Credens justitiam
type: MusicRecording
duration: PT1M56S
duration ms: 116600
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100657
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T08:21:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4ArdP26tJNn0U5KI4FK5NV.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ArdP26tJNn0U5KI4FK5NV
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f","isrc":"JPE301100657","name":"Credens justitiam","registered_at":"2026-06-05T08:21:30Z","spotify_id":"4ArdP26tJNn0U5KI4FK5NV","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4ArdP26tJNn0U5KI4FK5NV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4ArdP26tJNn0U5KI4FK5NV.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f","isrc":"JPE301100657","name":"Credens justitiam","registered_at":"2026-06-05T08:21:30Z","spotify_id":"4ArdP26tJNn0U5KI4FK5NV","type":"track"}

Symposium magarum
type: MusicRecording
duration: PT1M45S
duration ms: 105973
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102571
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T12:07:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8c583fd3cb142a0a6d728562490e658173cf641d6ff6322646b9db826a54edd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1maYnq1a9WoiNUPaTcs9uR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1maYnq1a9WoiNUPaTcs9uR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8c583fd3cb142a0a6d728562490e658173cf641d6ff6322646b9db826a54edd","isrc":"JPE301102571","name":"Symposium magarum","registered_at":"2026-06-05T12:07:59Z","spotify_id":"1maYnq1a9WoiNUPaTcs9uR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c583fd3cb142a0a6d728562490e658173cf641d6ff6322646b9db826a54edd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1maYnq1a9WoiNUPaTcs9uR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1maYnq1a9WoiNUPaTcs9uR.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xd8c583fd3cb142a0a6d728562490e658173cf641d6ff6322646b9db826a54edd","isrc":"JPE301102571","name":"Symposium magarum","registered_at":"2026-06-05T12:07:59Z","spotify_id":"1maYnq1a9WoiNUPaTcs9uR","type":"track"}

Sis puella magica!
type: MusicRecording
duration: PT2M49S
duration ms: 169466
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100654
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T08:22:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0HDh5QaLfCwi2xyvkei917.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HDh5QaLfCwi2xyvkei917
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48","isrc":"JPE301100654","name":"Sis puella magica!","registered_at":"2026-06-04T08:22:04Z","spotify_id":"0HDh5QaLfCwi2xyvkei917","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0HDh5QaLfCwi2xyvkei917.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HDh5QaLfCwi2xyvkei917.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48","isrc":"JPE301100654","name":"Sis puella magica!","registered_at":"2026-06-04T08:22:04Z","spotify_id":"0HDh5QaLfCwi2xyvkei917","type":"track"}

Numquam vincar
type: MusicRecording
duration: PT2M8S
duration ms: 128065
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102561
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:58:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe042be8bf1fd7ed031fc2be49ededa5b990e7edb5bb97d18e73a203a448199e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/62tvYuczkS21qfHyZNPw9H.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62tvYuczkS21qfHyZNPw9H
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe042be8bf1fd7ed031fc2be49ededa5b990e7edb5bb97d18e73a203a448199e6","isrc":"JPE301102561","name":"Numquam vincar","registered_at":"2026-06-07T12:58:02Z","spotify_id":"62tvYuczkS21qfHyZNPw9H","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe042be8bf1fd7ed031fc2be49ededa5b990e7edb5bb97d18e73a203a448199e6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/62tvYuczkS21qfHyZNPw9H.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62tvYuczkS21qfHyZNPw9H.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xe042be8bf1fd7ed031fc2be49ededa5b990e7edb5bb97d18e73a203a448199e6","isrc":"JPE301102561","name":"Numquam vincar","registered_at":"2026-06-07T12:58:02Z","spotify_id":"62tvYuczkS21qfHyZNPw9H","type":"track"}

Inevitabilis
type: MusicRecording
duration: PT1M55S
duration ms: 115040
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101747
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T13:01:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10bbf22f0933fe8321e698413dde74b7b1eda88da771684cb4afbee18b298b8e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6ZB2H8QtCVzDV4IV0A6DZr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ZB2H8QtCVzDV4IV0A6DZr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bbf22f0933fe8321e698413dde74b7b1eda88da771684cb4afbee18b298b8e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ZB2H8QtCVzDV4IV0A6DZr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ZB2H8QtCVzDV4IV0A6DZr.
  date published: 2026-06-13T17:25:41Z

Quamobrem?
type: MusicRecording
duration: PT1M30S
duration ms: 90733
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102562
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T10:02:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x586243b7e2ef1caeab2440d144280a82b9e25756afdb873d0ec616e51e5bf628
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1e9DlkinU1eB0kwZtjr5XM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1e9DlkinU1eB0kwZtjr5XM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586243b7e2ef1caeab2440d144280a82b9e25756afdb873d0ec616e51e5bf628. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1e9DlkinU1eB0kwZtjr5XM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1e9DlkinU1eB0kwZtjr5XM.
  date published: 2026-06-13T15:41:10Z

Pugna cum maga
type: MusicRecording
duration: PT2M17S
duration ms: 137253
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100666
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T13:00:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6551666d1494790e2967b434fd355c41e9c5bbc7a0afeea91ca3777a016ebe7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6M7kg1IeQKSJ8FoKBOBJj9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6M7kg1IeQKSJ8FoKBOBJj9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6551666d1494790e2967b434fd355c41e9c5bbc7a0afeea91ca3777a016ebe7e","isrc":"JPE301100666","name":"Pugna cum maga","registered_at":"2026-06-07T13:00:31Z","spotify_id":"6M7kg1IeQKSJ8FoKBOBJj9","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6551666d1494790e2967b434fd355c41e9c5bbc7a0afeea91ca3777a016ebe7e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6M7kg1IeQKSJ8FoKBOBJj9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6M7kg1IeQKSJ8FoKBOBJj9.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x6551666d1494790e2967b434fd355c41e9c5bbc7a0afeea91ca3777a016ebe7e","isrc":"JPE301100666","name":"Pugna cum maga","registered_at":"2026-06-07T13:00:31Z","spotify_id":"6M7kg1IeQKSJ8FoKBOBJj9","type":"track"}

Surgam identidem
type: MusicRecording
duration: PT3M36S
duration ms: 216293
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102564
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T23:34:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf3000364cdb63f2575d4fb1a455d79365bd7a1792282ffbe36b964e8cf7d5dc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6RuikLOg4R47K3MweDhVpB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RuikLOg4R47K3MweDhVpB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf3000364cdb63f2575d4fb1a455d79365bd7a1792282ffbe36b964e8cf7d5dc","isrc":"JPE301102564","name":"Surgam identidem","registered_at":"2026-06-06T23:34:14Z","spotify_id":"6RuikLOg4R47K3MweDhVpB","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3000364cdb63f2575d4fb1a455d79365bd7a1792282ffbe36b964e8cf7d5dc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6RuikLOg4R47K3MweDhVpB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6RuikLOg4R47K3MweDhVpB.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xbf3000364cdb63f2575d4fb1a455d79365bd7a1792282ffbe36b964e8cf7d5dc","isrc":"JPE301102564","name":"Surgam identidem","registered_at":"2026-06-06T23:34:14Z","spotify_id":"6RuikLOg4R47K3MweDhVpB","type":"track"}

Vocalise Op. 34 no. 14
type: MusicRecording
duration: PT3M36S
duration ms: 216573
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101751
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T11:24:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57713260b4bca18f7b37aa65d2c7f6297db370e1a088100e8cadcff8bb464e3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1WjwWgTy9tDEpTOryohnsX.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1WjwWgTy9tDEpTOryohnsX
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x57713260b4bca18f7b37aa65d2c7f6297db370e1a088100e8cadcff8bb464e3d","isrc":"JPE301101751","name":"Vocalise Op. 34 no. 14","registered_at":"2026-06-08T11:24:50Z","spotify_id":"1WjwWgTy9tDEpTOryohnsX","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57713260b4bca18f7b37aa65d2c7f6297db370e1a088100e8cadcff8bb464e3d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WjwWgTy9tDEpTOryohnsX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1WjwWgTy9tDEpTOryohnsX.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x57713260b4bca18f7b37aa65d2c7f6297db370e1a088100e8cadcff8bb464e3d","isrc":"JPE301101751","name":"Vocalise Op. 34 no. 14","registered_at":"2026-06-08T11:24:50Z","spotify_id":"1WjwWgTy9tDEpTOryohnsX","type":"track"}

Nux Walpurgis
type: MusicRecording
duration: PT2M34S
duration ms: 154000
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102567
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:57:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a58877c809209fde483dba16e24c1bacc51ae9dcb18f60bdb36f9a371386eac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4sPKrqfM6lBaCX0COmOgzQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4sPKrqfM6lBaCX0COmOgzQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6a58877c809209fde483dba16e24c1bacc51ae9dcb18f60bdb36f9a371386eac","isrc":"JPE301102567","name":"Nux Walpurgis","registered_at":"2026-06-07T12:57:14Z","spotify_id":"4sPKrqfM6lBaCX0COmOgzQ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a58877c809209fde483dba16e24c1bacc51ae9dcb18f60bdb36f9a371386eac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4sPKrqfM6lBaCX0COmOgzQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4sPKrqfM6lBaCX0COmOgzQ.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x6a58877c809209fde483dba16e24c1bacc51ae9dcb18f60bdb36f9a371386eac","isrc":"JPE301102567","name":"Nux Walpurgis","registered_at":"2026-06-07T12:57:14Z","spotify_id":"4sPKrqfM6lBaCX0COmOgzQ","type":"track"}

Umbra nigra
type: MusicRecording
duration: PT1M44S
duration ms: 104733
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100663
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:42:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x629576b7acccc2ab46dd55d4efd7ed12656b5666cfa143dea59f28fda54f664b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0JGlteo0H3yjSMaaNQ2LP6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0JGlteo0H3yjSMaaNQ2LP6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x629576b7acccc2ab46dd55d4efd7ed12656b5666cfa143dea59f28fda54f664b","isrc":"JPE301100663","name":"Umbra nigra","registered_at":"2026-06-09T16:42:54Z","spotify_id":"0JGlteo0H3yjSMaaNQ2LP6","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629576b7acccc2ab46dd55d4efd7ed12656b5666cfa143dea59f28fda54f664b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0JGlteo0H3yjSMaaNQ2LP6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0JGlteo0H3yjSMaaNQ2LP6.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x629576b7acccc2ab46dd55d4efd7ed12656b5666cfa143dea59f28fda54f664b","isrc":"JPE301100663","name":"Umbra nigra","registered_at":"2026-06-09T16:42:54Z","spotify_id":"0JGlteo0H3yjSMaaNQ2LP6","type":"track"}

Sagitta luminis
type: MusicRecording
duration: PT5M43S
duration ms: 343666
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102566
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T11:34:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84e68696e9cbcdb2c923aff4a3057ed83aeb9008a47ec3eb0df70b91c33c3e9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7GGma2gnEI94xrvLtTNU2Q.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7GGma2gnEI94xrvLtTNU2Q
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x84e68696e9cbcdb2c923aff4a3057ed83aeb9008a47ec3eb0df70b91c33c3e9b","isrc":"JPE301102566","name":"Sagitta luminis","registered_at":"2026-06-08T11:34:24Z","spotify_id":"7GGma2gnEI94xrvLtTNU2Q","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e68696e9cbcdb2c923aff4a3057ed83aeb9008a47ec3eb0df70b91c33c3e9b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7GGma2gnEI94xrvLtTNU2Q.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7GGma2gnEI94xrvLtTNU2Q.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x84e68696e9cbcdb2c923aff4a3057ed83aeb9008a47ec3eb0df70b91c33c3e9b","isrc":"JPE301102566","name":"Sagitta luminis","registered_at":"2026-06-08T11:34:24Z","spotify_id":"7GGma2gnEI94xrvLtTNU2Q","type":"track"}

Venari strigas
type: MusicRecording
duration: PT2M47S
duration ms: 167040
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101743
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T03:37:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30c6b17443bfe1294168e5b72c7af05f40565987422603e25f8a272cb3a5c40a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1HsQK27GZ5Vo4DO2ooyYGt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1HsQK27GZ5Vo4DO2ooyYGt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x30c6b17443bfe1294168e5b72c7af05f40565987422603e25f8a272cb3a5c40a","isrc":"JPE301101743","name":"Venari strigas","registered_at":"2026-06-06T03:37:09Z","spotify_id":"1HsQK27GZ5Vo4DO2ooyYGt","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c6b17443bfe1294168e5b72c7af05f40565987422603e25f8a272cb3a5c40a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1HsQK27GZ5Vo4DO2ooyYGt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1HsQK27GZ5Vo4DO2ooyYGt.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x30c6b17443bfe1294168e5b72c7af05f40565987422603e25f8a272cb3a5c40a","isrc":"JPE301101743","name":"Venari strigas","registered_at":"2026-06-06T03:37:09Z","spotify_id":"1HsQK27GZ5Vo4DO2ooyYGt","type":"track"}

Cubilulum album
type: MusicRecording
duration: PT2M20S
duration ms: 140786
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102568
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T06:08:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5f45e16b1af5963f5a9bef65971b89fde7510ae93e1218bf43ea855e0b5cde0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/40qk3bKtfAt4etLPpUMgWK.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/40qk3bKtfAt4etLPpUMgWK
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa5f45e16b1af5963f5a9bef65971b89fde7510ae93e1218bf43ea855e0b5cde0","isrc":"JPE301102568","name":"Cubilulum album","registered_at":"2026-06-11T06:08:02Z","spotify_id":"40qk3bKtfAt4etLPpUMgWK","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f45e16b1af5963f5a9bef65971b89fde7510ae93e1218bf43ea855e0b5cde0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/40qk3bKtfAt4etLPpUMgWK.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/40qk3bKtfAt4etLPpUMgWK.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xa5f45e16b1af5963f5a9bef65971b89fde7510ae93e1218bf43ea855e0b5cde0","isrc":"JPE301102568","name":"Cubilulum album","registered_at":"2026-06-11T06:08:02Z","spotify_id":"40qk3bKtfAt4etLPpUMgWK","type":"track"}

Agmen clientum
type: MusicRecording
duration: PT1M45S
duration ms: 105173
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101742
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T11:24:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6d8588ee50619b9d94440b7a8d5c455673edb11d91b3b59eb8edec0d8724a21
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/47XWtz3TMkdqJjbpNvngnG.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47XWtz3TMkdqJjbpNvngnG
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe6d8588ee50619b9d94440b7a8d5c455673edb11d91b3b59eb8edec0d8724a21","isrc":"JPE301101742","name":"Agmen clientum","registered_at":"2026-06-08T11:24:04Z","spotify_id":"47XWtz3TMkdqJjbpNvngnG","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d8588ee50619b9d94440b7a8d5c455673edb11d91b3b59eb8edec0d8724a21. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47XWtz3TMkdqJjbpNvngnG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47XWtz3TMkdqJjbpNvngnG.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xe6d8588ee50619b9d94440b7a8d5c455673edb11d91b3b59eb8edec0d8724a21","isrc":"JPE301101742","name":"Agmen clientum","registered_at":"2026-06-08T11:24:04Z","spotify_id":"47XWtz3TMkdqJjbpNvngnG","type":"track"}

Taenia memoriae
type: MusicRecording
duration: PT2M11S
duration ms: 131800
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102569
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T19:21:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75109c24551ba062825f9676274814d42c2afe6d338d411f70f41d3c48529831
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/319QhTdoNiAOfVvsZdvB5Y.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/319QhTdoNiAOfVvsZdvB5Y
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x75109c24551ba062825f9676274814d42c2afe6d338d411f70f41d3c48529831","isrc":"JPE301102569","name":"Taenia memoriae","registered_at":"2026-06-08T19:21:31Z","spotify_id":"319QhTdoNiAOfVvsZdvB5Y","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75109c24551ba062825f9676274814d42c2afe6d338d411f70f41d3c48529831. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/319QhTdoNiAOfVvsZdvB5Y.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/319QhTdoNiAOfVvsZdvB5Y.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x75109c24551ba062825f9676274814d42c2afe6d338d411f70f41d3c48529831","isrc":"JPE301102569","name":"Taenia memoriae","registered_at":"2026-06-08T19:21:31Z","spotify_id":"319QhTdoNiAOfVvsZdvB5Y","type":"track"}

Signum malum
type: MusicRecording
duration: PT1M47S
duration ms: 107186
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101744
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:23:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62b5db2bace1836bc4bd2ce289fda2ed191ed9ead3cc620fe7a83e59015c2c67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2Hnm4Y0anYKLjWIQOQZnCE.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Hnm4Y0anYKLjWIQOQZnCE
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62b5db2bace1836bc4bd2ce289fda2ed191ed9ead3cc620fe7a83e59015c2c67","isrc":"JPE301101744","name":"Signum malum","registered_at":"2026-06-07T19:23:02Z","spotify_id":"2Hnm4Y0anYKLjWIQOQZnCE","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b5db2bace1836bc4bd2ce289fda2ed191ed9ead3cc620fe7a83e59015c2c67. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Hnm4Y0anYKLjWIQOQZnCE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Hnm4Y0anYKLjWIQOQZnCE.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x62b5db2bace1836bc4bd2ce289fda2ed191ed9ead3cc620fe7a83e59015c2c67","isrc":"JPE301101744","name":"Signum malum","registered_at":"2026-06-07T19:23:02Z","spotify_id":"2Hnm4Y0anYKLjWIQOQZnCE","type":"track"}

Pergo pugnare
type: MusicRecording
duration: PT2M12S
duration ms: 132826
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102572
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T06:59:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x316257c5ae1397e49ddf1b5db4fa710631d89a3afc39208c7cfef2ceca827760
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6Yyr0DZl02sG4cOhN9p6Hx.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Yyr0DZl02sG4cOhN9p6Hx
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x316257c5ae1397e49ddf1b5db4fa710631d89a3afc39208c7cfef2ceca827760","isrc":"JPE301102572","name":"Pergo pugnare","registered_at":"2026-06-09T06:59:05Z","spotify_id":"6Yyr0DZl02sG4cOhN9p6Hx","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316257c5ae1397e49ddf1b5db4fa710631d89a3afc39208c7cfef2ceca827760. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Yyr0DZl02sG4cOhN9p6Hx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Yyr0DZl02sG4cOhN9p6Hx.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x316257c5ae1397e49ddf1b5db4fa710631d89a3afc39208c7cfef2ceca827760","isrc":"JPE301102572","name":"Pergo pugnare","registered_at":"2026-06-09T06:59:05Z","spotify_id":"6Yyr0DZl02sG4cOhN9p6Hx","type":"track"}

Serena ira
type: MusicRecording
duration: PT2M1S
duration ms: 121546
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101748
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:40:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c43e4bb17fc8332687725d71dc3b9aad8e19956547efc0258cc165e1fc09849
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4cfOnGRyTVNMwK9UywPHNO.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4cfOnGRyTVNMwK9UywPHNO
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1c43e4bb17fc8332687725d71dc3b9aad8e19956547efc0258cc165e1fc09849","isrc":"JPE301101748","name":"Serena ira","registered_at":"2026-06-08T02:40:21Z","spotify_id":"4cfOnGRyTVNMwK9UywPHNO","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c43e4bb17fc8332687725d71dc3b9aad8e19956547efc0258cc165e1fc09849. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4cfOnGRyTVNMwK9UywPHNO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4cfOnGRyTVNMwK9UywPHNO.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x1c43e4bb17fc8332687725d71dc3b9aad8e19956547efc0258cc165e1fc09849","isrc":"JPE301101748","name":"Serena ira","registered_at":"2026-06-08T02:40:21Z","spotify_id":"4cfOnGRyTVNMwK9UywPHNO","type":"track"}

コネクト
type: MusicRecording
duration: PT4M31S
duration ms: 271040
explicit: false
by artist: ClariS
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPU901001861
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T06:41:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1FPaeUpi51dMqOu95S4eMM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1FPaeUpi51dMqOu95S4eMM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c","isrc":"JPU901001861","name":"コネクト","registered_at":"2026-06-04T06:41:19Z","spotify_id":"1FPaeUpi51dMqOu95S4eMM","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1FPaeUpi51dMqOu95S4eMM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1FPaeUpi51dMqOu95S4eMM.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c","isrc":"JPU901001861","name":"コネクト","registered_at":"2026-06-04T06:41:19Z","spotify_id":"1FPaeUpi51dMqOu95S4eMM","type":"track"}

Incertus
type: MusicRecording
duration: PT1M40S
duration ms: 100480
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101746
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T07:00:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cb057f8c6d0828c4958571c6832f42ec2a04ab977fefaea93bc6fe253b0742f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5PTaPctnEar5L4V85T91Hk.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5PTaPctnEar5L4V85T91Hk
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb057f8c6d0828c4958571c6832f42ec2a04ab977fefaea93bc6fe253b0742f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5PTaPctnEar5L4V85T91Hk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5PTaPctnEar5L4V85T91Hk.
  date published: 2026-06-13T17:25:41Z

Magia
type: MusicRecording
duration: PT5M16S
duration ms: 316933
explicit: false
by artist: Kalafina
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPU901001841
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T11:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/52nOS0j3SGC4pQ6LgBi7QF.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/52nOS0j3SGC4pQ6LgBi7QF
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/52nOS0j3SGC4pQ6LgBi7QF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/52nOS0j3SGC4pQ6LgBi7QF.
  date published: 2026-06-13T17:25:41Z

Ave Maria
type: MusicRecording
duration: PT4M48S
duration ms: 288000
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101752
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:40:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6e1823ee6a1efb31715ecc8c5abb2a762c48727df993fc3b3d753237c7e84e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/239yLrYqqC4fJoV2fj18Ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/239yLrYqqC4fJoV2fj18Ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6e1823ee6a1efb31715ecc8c5abb2a762c48727df993fc3b3d753237c7e84e9","isrc":"JPE301101752","name":"Ave Maria","registered_at":"2026-06-08T02:40:49Z","spotify_id":"239yLrYqqC4fJoV2fj18Ca","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e1823ee6a1efb31715ecc8c5abb2a762c48727df993fc3b3d753237c7e84e9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/239yLrYqqC4fJoV2fj18Ca.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/239yLrYqqC4fJoV2fj18Ca.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xf6e1823ee6a1efb31715ecc8c5abb2a762c48727df993fc3b3d753237c7e84e9","isrc":"JPE301101752","name":"Ave Maria","registered_at":"2026-06-08T02:40:49Z","spotify_id":"239yLrYqqC4fJoV2fj18Ca","type":"track"}

Numquam vincar(Live ver.)
type: MusicRecording
duration: PT6M37S
duration ms: 397040
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301302936
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T19:19:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43251662214b62237b4292d7abdd4fb4b162b377e71c83b723cb1423a48588c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0iNIlKcCfbohUrH32oqW7F.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0iNIlKcCfbohUrH32oqW7F
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43251662214b62237b4292d7abdd4fb4b162b377e71c83b723cb1423a48588c6","isrc":"JPE301302936","name":"Numquam vincar(Live ver.)","registered_at":"2026-06-08T19:19:58Z","spotify_id":"0iNIlKcCfbohUrH32oqW7F","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43251662214b62237b4292d7abdd4fb4b162b377e71c83b723cb1423a48588c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0iNIlKcCfbohUrH32oqW7F.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0iNIlKcCfbohUrH32oqW7F.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x43251662214b62237b4292d7abdd4fb4b162b377e71c83b723cb1423a48588c6","isrc":"JPE301302936","name":"Numquam vincar(Live ver.)","registered_at":"2026-06-08T19:19:58Z","spotify_id":"0iNIlKcCfbohUrH32oqW7F","type":"track"}

Decretum
type: MusicRecording
duration: PT1M49S
duration ms: 109773
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101741
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:27:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4403d0e6b668fbfb88aa35f885e25ecdd05d36b94c903c06efffb2676b6a0f30
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6AICX6AYZYfM4lU24Fs08m.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6AICX6AYZYfM4lU24Fs08m
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4403d0e6b668fbfb88aa35f885e25ecdd05d36b94c903c06efffb2676b6a0f30. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6AICX6AYZYfM4lU24Fs08m.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6AICX6AYZYfM4lU24Fs08m.
  date published: 2026-06-13T12:47:07Z

Anima mala
type: MusicRecording
duration: PT1M46S
duration ms: 106346
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301101749
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T04:42:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf39632b45e6f2ea2a9b0baefd5a3c42f9c859e519574a61d12c9ce48cbfead83
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6hjQxJxrP0NnlYeWAVT1TZ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hjQxJxrP0NnlYeWAVT1TZ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf39632b45e6f2ea2a9b0baefd5a3c42f9c859e519574a61d12c9ce48cbfead83","isrc":"JPE301101749","name":"Anima mala","registered_at":"2026-06-09T04:42:47Z","spotify_id":"6hjQxJxrP0NnlYeWAVT1TZ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39632b45e6f2ea2a9b0baefd5a3c42f9c859e519574a61d12c9ce48cbfead83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6hjQxJxrP0NnlYeWAVT1TZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6hjQxJxrP0NnlYeWAVT1TZ.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xf39632b45e6f2ea2a9b0baefd5a3c42f9c859e519574a61d12c9ce48cbfead83","isrc":"JPE301101749","name":"Anima mala","registered_at":"2026-06-09T04:42:47Z","spotify_id":"6hjQxJxrP0NnlYeWAVT1TZ","type":"track"}

また あした
type: MusicRecording
duration: PT4M24S
duration ms: 264426
explicit: false
by artist: 鹿目まどか (CV:悠木碧)
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301100462
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:23:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5sLtjikhdwpFxpQpt6NRB0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5sLtjikhdwpFxpQpt6NRB0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae","isrc":"JPE301100462","name":"また あした","registered_at":"2026-06-07T12:23:28Z","spotify_id":"5sLtjikhdwpFxpQpt6NRB0","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5sLtjikhdwpFxpQpt6NRB0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5sLtjikhdwpFxpQpt6NRB0.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae","isrc":"JPE301100462","name":"また あした","registered_at":"2026-06-07T12:23:28Z","spotify_id":"5sLtjikhdwpFxpQpt6NRB0","type":"track"}

and I'm home -Original Master Version.-
type: MusicRecording
duration: PT3M3S
duration ms: 183013
explicit: false
by artist: 美樹さやか (CV:喜多村英梨)
by artist: 佐倉杏子 (CV:野中藍)
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102901
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:11:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/04MYBwT5u3n0o9YD9TSa5g.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/04MYBwT5u3n0o9YD9TSa5g
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302","isrc":"JPE301102901","name":"and I'm home -Original Master Version.-","registered_at":"2026-06-05T11:11:45Z","spotify_id":"04MYBwT5u3n0o9YD9TSa5g","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/04MYBwT5u3n0o9YD9TSa5g.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/04MYBwT5u3n0o9YD9TSa5g.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302","isrc":"JPE301102901","name":"and I'm home -Original Master Version.-","registered_at":"2026-06-05T11:11:45Z","spotify_id":"04MYBwT5u3n0o9YD9TSa5g","type":"track"}

コネクト -ゲームインスト-
type: MusicRecording
duration: PT1M34S
duration ms: 94720
explicit: false
by artist: ClariS
in album: 「魔法少女まどか☆マギカ」 Music Collection
  type: MusicAlbum
  date published: 2013-12-25
isrc code: JPE301102601
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:36:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33f49eac5922149890d123c1fb1546190ce9acae52980b88861f5ef5571534c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6O7dVp1w20oN5dUjGVytoQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6O7dVp1w20oN5dUjGVytoQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x33f49eac5922149890d123c1fb1546190ce9acae52980b88861f5ef5571534c4","isrc":"JPE301102601","name":"コネクト -ゲームインスト-","registered_at":"2026-06-08T02:36:18Z","spotify_id":"6O7dVp1w20oN5dUjGVytoQ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f49eac5922149890d123c1fb1546190ce9acae52980b88861f5ef5571534c4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6O7dVp1w20oN5dUjGVytoQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6O7dVp1w20oN5dUjGVytoQ.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x33f49eac5922149890d123c1fb1546190ce9acae52980b88861f5ef5571534c4","isrc":"JPE301102601","name":"コネクト -ゲームインスト-","registered_at":"2026-06-08T02:36:18Z","spotify_id":"6O7dVp1w20oN5dUjGVytoQ","type":"track"}

「魔法少女まどか☆マギカ」 Ultimate Best
type: MusicAlbum
date published: 2017-08-09
track: コネクト
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270440
  explicit: false
  by artist: ClariS
  in album: 「魔法少女まどか☆マギカ」 Ultimate Best
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPU901001861
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T06:41:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/58uGcS3QBgttRCX8FG0ZBN.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/58uGcS3QBgttRCX8FG0ZBN
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c","isrc":"JPU901001861","name":"コネクト","registered_at":"2026-06-04T06:41:19Z","spotify_id":"58uGcS3QBgttRCX8FG0ZBN","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/58uGcS3QBgttRCX8FG0ZBN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/58uGcS3QBgttRCX8FG0ZBN.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x5aef123100f95d1ce4070d9f8f76a290e5822d46db3237d3b1970279435ac74c","isrc":"JPU901001861","name":"コネクト","registered_at":"2026-06-04T06:41:19Z","spotify_id":"58uGcS3QBgttRCX8FG0ZBN","type":"track"}
track: また あした
  type: MusicRecording
  duration: PT4M24S
  duration ms: 264426
  explicit: false
  by artist: 鹿目まどか (CV:悠木碧)
  in album: 「魔法少女まどか☆マギカ」 Ultimate Best
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPE301100462
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T12:23:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7nl2c2AB6rkhJt2NdBc1SD.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7nl2c2AB6rkhJt2NdBc1SD
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae","isrc":"JPE301100462","name":"また あした","registered_at":"2026-06-07T12:23:28Z","spotify_id":"7nl2c2AB6rkhJt2NdBc1SD","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7nl2c2AB6rkhJt2NdBc1SD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7nl2c2AB6rkhJt2NdBc1SD.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x3ef0fda1a3a3004bb749c67cd2a6c0ebb4fbd9b76ce81cb4a2854cfdbc131fae","isrc":"JPE301100462","name":"また あした","registered_at":"2026-06-07T12:23:28Z","spotify_id":"7nl2c2AB6rkhJt2NdBc1SD","type":"track"}
track: Credens justitiam
  type: MusicRecording
  duration: PT1M56S
  duration ms: 116053
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Ultimate Best
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPE301100657
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T08:21:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7wV4yL1P1FhmJQ9VD5fLp3.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7wV4yL1P1FhmJQ9VD5fLp3
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f","isrc":"JPE301100657","name":"Credens justitiam","registered_at":"2026-06-05T08:21:30Z","spotify_id":"7wV4yL1P1FhmJQ9VD5fLp3","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7wV4yL1P1FhmJQ9VD5fLp3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7wV4yL1P1FhmJQ9VD5fLp3.
    date published: 2026-06-13T12:47:07Z
    text: {"copyright_id":"0xd750cf6c1153cb24c0a6262d3ccc671aaab733d592bfea3f6a32680cf3f1475f","isrc":"JPE301100657","name":"Credens justitiam","registered_at":"2026-06-05T08:21:30Z","spotify_id":"7wV4yL1P1FhmJQ9VD5fLp3","type":"track"}
track: Sis puella magica!
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169493
  explicit: false
  by artist: 梶浦 由記
  in album: 「魔法少女まどか☆マギカ」 Ultimate Best
    type: MusicAlbum
    date published: 2017-08-09
  isrc code: JPE301100654
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T08:22:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4S40MDl8IuzSHsmsctWaKI.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4S40MDl8IuzSHsmsctWaKI
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48","isrc":"JPE301100654","name":"Sis puella magica!","registered_at":"2026-06-04T08:22:04Z","spotify_id":"4S40MDl8IuzSHsmsctWaKI","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4S40MDl8IuzSHsmsctWaKI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4S40MDl8IuzSHsmsctWaKI.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xe9d8c2868bc39422dc774dd0600167ab555d4d393d00365e45b1c9a341a8ce48","isrc":"JPE301100654","name":"Sis puella magica!","registered_at":"2026-06-04T08:22:04Z","spotify_id":"4S40MDl8IuzSHsmsctWaKI","type":"track"}
track: and I'm home -Original Master Version.-
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169520
  explicit: false
  by artist: 美樹さやか (CV:喜多村英梨)
  by artist: 佐倉杏子 (CV:野中藍)
  in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  isrc code: JPE301102901
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Magia
track: ルミナス
track: she is a witch
track: ひかりふる
track: naturally
track: あこがれ咲いた
track: Mebius Ash
track: ユメおと
track: Stairs
track: まだダメよ
track: Noi!
track: カラフル
track: 君の銀の庭

「魔法少女まどか☆マギカ」 Ultimate Best
type: MusicAlbum
date published: 2017-08-09

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-05T11:11:45+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953513

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953513

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/3n8hAfucrvhw30brcAzRVB.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3n8hAfucrvhw30brcAzRVB

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:47:07Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302","isrc":"JPE301102901","name":"and I'm home -Original Master Version.-","registered_at":"2026-06-05T11:11:45Z","spotify_id":"3n8hAfucrvhw30brcAzRVB","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3n8hAfucrvhw30brcAzRVB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3n8hAfucrvhw30brcAzRVB.
date published: 2026-06-13T12:47:07Z
text: {"copyright_id":"0xe018c67f5df73bc54c9ec04f7a08024700ef4c51151b0a420fa06188ae9b7302","isrc":"JPE301102901","name":"and I'm home -Original Master Version.-","registered_at":"2026-06-05T11:11:45Z","spotify_id":"3n8hAfucrvhw30brcAzRVB","type":"track"}

Magia
type: MusicRecording
duration: PT5M13S
duration ms: 313586
explicit: false
by artist: Kalafina
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901001841
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T11:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3VrY5AUgxJJsmw9HMP4w6W.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3VrY5AUgxJJsmw9HMP4w6W
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909361505bfc4199528458e79d03c1d1d838aab0a3f99c1eb711e6d9202a5d1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3VrY5AUgxJJsmw9HMP4w6W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3VrY5AUgxJJsmw9HMP4w6W.
  date published: 2026-06-13T15:41:10Z

ルミナス
type: MusicRecording
duration: PT4M10S
duration ms: 250386
explicit: false
by artist: ClariS
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901201361
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T05:18:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ef9f855f4937e26259ad3d5e7af73e768054ec273b5ff68deda50dd6d21948c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1t1rGn7F2btHJWxqcsEGq2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1t1rGn7F2btHJWxqcsEGq2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1ef9f855f4937e26259ad3d5e7af73e768054ec273b5ff68deda50dd6d21948c","isrc":"JPU901201361","name":"ルミナス","registered_at":"2026-06-05T05:18:16Z","spotify_id":"1t1rGn7F2btHJWxqcsEGq2","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef9f855f4937e26259ad3d5e7af73e768054ec273b5ff68deda50dd6d21948c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1t1rGn7F2btHJWxqcsEGq2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1t1rGn7F2btHJWxqcsEGq2.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x1ef9f855f4937e26259ad3d5e7af73e768054ec273b5ff68deda50dd6d21948c","isrc":"JPU901201361","name":"ルミナス","registered_at":"2026-06-05T05:18:16Z","spotify_id":"1t1rGn7F2btHJWxqcsEGq2","type":"track"}

she is a witch
type: MusicRecording
duration: PT1M41S
duration ms: 101253
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301301988
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T15:57:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdff90a917107e92b2dfb2fdbc06515cb1c8c7dabe59a29b5f03d8a901acdf7fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7pzGD0fepRx0gwZKUrHdBH.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7pzGD0fepRx0gwZKUrHdBH
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdff90a917107e92b2dfb2fdbc06515cb1c8c7dabe59a29b5f03d8a901acdf7fb","isrc":"JPE301301988","name":"she is a witch","registered_at":"2026-06-05T15:57:24Z","spotify_id":"7pzGD0fepRx0gwZKUrHdBH","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff90a917107e92b2dfb2fdbc06515cb1c8c7dabe59a29b5f03d8a901acdf7fb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7pzGD0fepRx0gwZKUrHdBH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7pzGD0fepRx0gwZKUrHdBH.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xdff90a917107e92b2dfb2fdbc06515cb1c8c7dabe59a29b5f03d8a901acdf7fb","isrc":"JPE301301988","name":"she is a witch","registered_at":"2026-06-05T15:57:24Z","spotify_id":"7pzGD0fepRx0gwZKUrHdBH","type":"track"}

ひかりふる
type: MusicRecording
duration: PT4M54S
duration ms: 294346
explicit: false
by artist: Kalafina
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901201401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:43:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0BWhmSB7XnnOSNqcWqZmer.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0BWhmSB7XnnOSNqcWqZmer
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"0BWhmSB7XnnOSNqcWqZmer","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0BWhmSB7XnnOSNqcWqZmer.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0BWhmSB7XnnOSNqcWqZmer.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"0BWhmSB7XnnOSNqcWqZmer","type":"track"}

naturally
type: MusicRecording
duration: PT4M28S
duration ms: 268573
explicit: false
by artist: 鹿目まどか (CV:悠木碧)
by artist: 美樹さやか (CV:喜多村英梨)
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301700785
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T01:55:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14b0b6fff18e382f881899df078d37711748dbfca34db4843d823f829d3c9bc5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7DAhdpK5bYIQzD8zp1dCju.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7DAhdpK5bYIQzD8zp1dCju
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b0b6fff18e382f881899df078d37711748dbfca34db4843d823f829d3c9bc5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7DAhdpK5bYIQzD8zp1dCju.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7DAhdpK5bYIQzD8zp1dCju.
  date published: 2026-06-13T13:32:09Z

あこがれ咲いた
type: MusicRecording
duration: PT3M51S
duration ms: 231906
explicit: false
by artist: 鹿目まどか (CV:悠木碧)
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301700786
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T04:41:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a1132e829f269a0873c21601def95db0749a734bede17e325976f0a6f7484c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1KuGK9P4wUIuBjGhnsQ5Ld.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KuGK9P4wUIuBjGhnsQ5Ld
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6a1132e829f269a0873c21601def95db0749a734bede17e325976f0a6f7484c8","isrc":"JPE301700786","name":"あこがれ咲いた","registered_at":"2026-06-09T04:41:11Z","spotify_id":"1KuGK9P4wUIuBjGhnsQ5Ld","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1132e829f269a0873c21601def95db0749a734bede17e325976f0a6f7484c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1KuGK9P4wUIuBjGhnsQ5Ld.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1KuGK9P4wUIuBjGhnsQ5Ld.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x6a1132e829f269a0873c21601def95db0749a734bede17e325976f0a6f7484c8","isrc":"JPE301700786","name":"あこがれ咲いた","registered_at":"2026-06-09T04:41:11Z","spotify_id":"1KuGK9P4wUIuBjGhnsQ5Ld","type":"track"}

Mebius Ash
type: MusicRecording
duration: PT4M3S
duration ms: 243440
explicit: false
by artist: 暁美ほむら (CV:斎藤千和)
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301700787
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T01:51:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e9fd61e5a83d5d58a4a28838ba4ce70190a4c4ca725a6ede26d4ce5b392e6f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2i6BYXATu18CBA4TuIdzMM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2i6BYXATu18CBA4TuIdzMM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e9fd61e5a83d5d58a4a28838ba4ce70190a4c4ca725a6ede26d4ce5b392e6f8","isrc":"JPE301700787","name":"Mebius Ash","registered_at":"2026-06-08T01:51:05Z","spotify_id":"2i6BYXATu18CBA4TuIdzMM","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9fd61e5a83d5d58a4a28838ba4ce70190a4c4ca725a6ede26d4ce5b392e6f8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2i6BYXATu18CBA4TuIdzMM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2i6BYXATu18CBA4TuIdzMM.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x4e9fd61e5a83d5d58a4a28838ba4ce70190a4c4ca725a6ede26d4ce5b392e6f8","isrc":"JPE301700787","name":"Mebius Ash","registered_at":"2026-06-08T01:51:05Z","spotify_id":"2i6BYXATu18CBA4TuIdzMM","type":"track"}

ユメおと
type: MusicRecording
duration: PT3M56S
duration ms: 236653
explicit: false
by artist: 鹿目まどか (CV:悠木碧)
by artist: 暁美ほむら (CV:斎藤千和)
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301700788
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:42:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74574bcaf594d8aa7426cc9bdc2321fdced9a2bdf75b23e5fdffdfa36a593dd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6M3dD7YvWOMy4LU0ZCJcHn.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6M3dD7YvWOMy4LU0ZCJcHn
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x74574bcaf594d8aa7426cc9bdc2321fdced9a2bdf75b23e5fdffdfa36a593dd0","isrc":"JPE301700788","name":"ユメおと","registered_at":"2026-06-07T18:42:25Z","spotify_id":"6M3dD7YvWOMy4LU0ZCJcHn","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74574bcaf594d8aa7426cc9bdc2321fdced9a2bdf75b23e5fdffdfa36a593dd0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6M3dD7YvWOMy4LU0ZCJcHn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6M3dD7YvWOMy4LU0ZCJcHn.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x74574bcaf594d8aa7426cc9bdc2321fdced9a2bdf75b23e5fdffdfa36a593dd0","isrc":"JPE301700788","name":"ユメおと","registered_at":"2026-06-07T18:42:25Z","spotify_id":"6M3dD7YvWOMy4LU0ZCJcHn","type":"track"}

Stairs
type: MusicRecording
duration: PT3M51S
duration ms: 231360
explicit: false
by artist: 巴マミ(CV:水橋かおり)
by artist: 佐倉杏子 (CV:野中藍)
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301700789
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T05:57:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c3d4268a5dc975b4acb9831862384f6bf5ad17b083c9113d0dbff89cf87b292
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/30qeDkDeFD59x2JCzwegRs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/30qeDkDeFD59x2JCzwegRs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3d4268a5dc975b4acb9831862384f6bf5ad17b083c9113d0dbff89cf87b292. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/30qeDkDeFD59x2JCzwegRs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/30qeDkDeFD59x2JCzwegRs.
  date published: 2026-06-13T15:41:10Z

まだダメよ
type: MusicRecording
duration: PT0M57S
duration ms: 57226
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301400086
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T15:27:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05cba0dc41de7b663aee3d8b2f00c7e15d698d9a4c24916c71f19ed4a50c3333
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2ZccAEcvxEzWqa5mIYrKFV.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ZccAEcvxEzWqa5mIYrKFV
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05cba0dc41de7b663aee3d8b2f00c7e15d698d9a4c24916c71f19ed4a50c3333","isrc":"JPE301400086","name":"まだダメよ","registered_at":"2026-06-06T15:27:36Z","spotify_id":"2ZccAEcvxEzWqa5mIYrKFV","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cba0dc41de7b663aee3d8b2f00c7e15d698d9a4c24916c71f19ed4a50c3333. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ZccAEcvxEzWqa5mIYrKFV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ZccAEcvxEzWqa5mIYrKFV.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x05cba0dc41de7b663aee3d8b2f00c7e15d698d9a4c24916c71f19ed4a50c3333","isrc":"JPE301400086","name":"まだダメよ","registered_at":"2026-06-06T15:27:36Z","spotify_id":"2ZccAEcvxEzWqa5mIYrKFV","type":"track"}

Noi!
type: MusicRecording
duration: PT1M0S
duration ms: 60253
explicit: false
by artist: 梶浦 由記
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPE301400115
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:04:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12c0cef8f26b9124aafef469304b52d7cd9485a3414fd9817dc3f8492a40f08d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/75dXCLRNjxt97ZxytZwEZn.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75dXCLRNjxt97ZxytZwEZn
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c0cef8f26b9124aafef469304b52d7cd9485a3414fd9817dc3f8492a40f08d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/75dXCLRNjxt97ZxytZwEZn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/75dXCLRNjxt97ZxytZwEZn.
  date published: 2026-06-13T17:25:41Z

カラフル
type: MusicRecording
duration: PT4M33S
duration ms: 273360
explicit: false
by artist: ClariS
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901300921
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T13:44:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62413e3dd1617bcc5809ceffe8174b995c8f283c3ff48f45607fd7e4e3fa31d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/28ZyMgqwj8fqM5lYOkB873.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/28ZyMgqwj8fqM5lYOkB873
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62413e3dd1617bcc5809ceffe8174b995c8f283c3ff48f45607fd7e4e3fa31d6","isrc":"JPU901300921","name":"カラフル","registered_at":"2026-06-04T13:44:11Z","spotify_id":"28ZyMgqwj8fqM5lYOkB873","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62413e3dd1617bcc5809ceffe8174b995c8f283c3ff48f45607fd7e4e3fa31d6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28ZyMgqwj8fqM5lYOkB873.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/28ZyMgqwj8fqM5lYOkB873.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x62413e3dd1617bcc5809ceffe8174b995c8f283c3ff48f45607fd7e4e3fa31d6","isrc":"JPU901300921","name":"カラフル","registered_at":"2026-06-04T13:44:11Z","spotify_id":"28ZyMgqwj8fqM5lYOkB873","type":"track"}

君の銀の庭
type: MusicRecording
duration: PT5M6S
duration ms: 306520
explicit: false
by artist: Kalafina
in album: 「魔法少女まどか☆マギカ」 Ultimate Best
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901301237
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:03:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2L88s3FqomSMGaRjw6rHMB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2L88s3FqomSMGaRjw6rHMB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"2L88s3FqomSMGaRjw6rHMB","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2L88s3FqomSMGaRjw6rHMB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2L88s3FqomSMGaRjw6rHMB.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"2L88s3FqomSMGaRjw6rHMB","type":"track"}

ANIME HITS - the originals
type: MusicAlbum
date published: 2020-02-14
track: unravel
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236133
  explicit: false
  by artist: TK from Ling tosite sigure
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPU901400608
track: Seven Deadly Sins
  type: MusicRecording
  duration: PT3M23S
  duration ms: 203826
  explicit: false
  by artist: MAN WITH A MISSION
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPU901500095
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-29T01:14:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8c201098fccb4e9517f3010583a33e5584639046c1bb3c9c0d04184c0e46c8e8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957122
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2Of5qGE8983iLQltAU6Cbi.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Of5qGE8983iLQltAU6Cbi
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x8c201098fccb4e9517f3010583a33e5584639046c1bb3c9c0d04184c0e46c8e8","isrc":"JPU901500095","name":"Seven Deadly Sins","registered_at":"2026-06-29T01:14:25Z","spotify_id":"2Of5qGE8983iLQltAU6Cbi","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c201098fccb4e9517f3010583a33e5584639046c1bb3c9c0d04184c0e46c8e8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Of5qGE8983iLQltAU6Cbi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Of5qGE8983iLQltAU6Cbi.
    date published: 2026-07-08T03:39:04Z
    text: {"copyright_id":"0x8c201098fccb4e9517f3010583a33e5584639046c1bb3c9c0d04184c0e46c8e8","isrc":"JPU901500095","name":"Seven Deadly Sins","registered_at":"2026-06-29T01:14:25Z","spotify_id":"2Of5qGE8983iLQltAU6Cbi","type":"track"}
track: crossing field
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247160
  explicit: false
  by artist: LiSA
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPE301201741
track: Face My Fears (English Version)
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216200
  explicit: false
  by artist: Hikaru Utada
  by artist: Skrillex
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
track: Sign
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234946
  explicit: false
  by artist: FLOW
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPKS00902021
track: 空に歌えば
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216946
  explicit: false
  by artist: amazarashi
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPU901702503
track: シルエット
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238093
  explicit: false
  by artist: KANA-BOON
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPU901401691
track: ブルーバード
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214213
  explicit: false
  by artist: Ikimonogakari
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPES00801041
track: FLY HIGH!!
  type: MusicRecording
  duration: PT4M1S
  duration ms: 241600
  explicit: false
  by artist: BURNOUT SYNDROMES
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPU901503546
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-01T09:52:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe25dae16fbed01a5ae4ced1bdbe4951582c4e1d4aab6f2ebb1e82e86d378aeae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4s4c15SzGT8tVdNcWNY59X.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4s4c15SzGT8tVdNcWNY59X
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xe25dae16fbed01a5ae4ced1bdbe4951582c4e1d4aab6f2ebb1e82e86d378aeae","isrc":"JPU901503546","name":"FLY HIGH!!","registered_at":"2026-06-01T09:52:53Z","spotify_id":"4s4c15SzGT8tVdNcWNY59X","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25dae16fbed01a5ae4ced1bdbe4951582c4e1d4aab6f2ebb1e82e86d378aeae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4s4c15SzGT8tVdNcWNY59X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4s4c15SzGT8tVdNcWNY59X.
    date published: 2026-07-08T03:20:19Z
    text: {"copyright_id":"0xe25dae16fbed01a5ae4ced1bdbe4951582c4e1d4aab6f2ebb1e82e86d378aeae","isrc":"JPU901503546","name":"FLY HIGH!!","registered_at":"2026-06-01T09:52:53Z","spotify_id":"4s4c15SzGT8tVdNcWNY59X","type":"track"}
track: Rising Hope
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249613
  explicit: false
  by artist: LiSA
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPE301400237
track: 遥か彼方
  type: MusicRecording
  duration: PT4M1S
  duration ms: 241493
  explicit: false
  by artist: ASIAN KUNG-FU GENERATION
  in album: ANIME HITS - the originals
    type: MusicAlbum
    date published: 2020-02-14
  isrc code: JPKS00300301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-01T10:07:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x81a9d21dda6619191ab3c50b5034dea18aea7a6f24a2ac76b4a93856ce60b2ef
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSRecordURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: GO!!!
track: RESISTER
track: Brave Shine
track: THE DAY
track: LIFE
track: COLORS -CODE GEASS OPENING MIX-
track: Touch off
track: キヅアト
track: まるつけ
track: ゴールデンタイム
track: chAngE
track: ワンミーツハー
track: found & lost
track: Catch the Moment
track: heavenly blue
track: MUKANJYO
track: さよならごっこ
track: katharsis
track: 火炎
track: 航海の唄
track: カラノココロ
track: Howling
track: 嘘
track: ポラリス
track: Departures 〜あなたにおくるアイの歌〜
track: ブラッドサーキュレーター
track: Don't Think Twice
track: asphyxia

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/953513

OTSRecordURL
type: PropertyValue
value: https://artists.proofprofile.net/proofs/track/5ORPYXJKlpHWIdceavSGrL.json

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ORPYXJKlpHWIdceavSGrL

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:47:07Z

OTSCanonicalRecord
type: PropertyValue
value: {"copyright_id":"0x81a9d21dda6619191ab3c50b5034dea18aea7a6f24a2ac76b4a93856ce60b2ef","isrc":"JPKS00300301","name":"遥か彼方","registered_at":"2026-06-01T10:07:23Z","spotify_id":"5ORPYXJKlpHWIdceavSGrL","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
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date published: 2026-06-13T12:47:07Z
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GO!!!
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in album: ANIME HITS - the originals
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  date published: 2020-02-14
isrc code: JPKS00400421

RESISTER
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in album: ANIME HITS - the originals
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isrc code: JPU901804314
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Brave Shine
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  date published: 2020-02-14
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df2549df8e707d971e1ed0a95abb9b5a0ffb41275c46b55cd414f99028380b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zu5ljDglm6SxZsG6ENKmA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zu5ljDglm6SxZsG6ENKmA.
  date published: 2026-07-08T03:39:04Z
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THE DAY
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in album: ANIME HITS - the originals
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  date published: 2020-02-14
isrc code: JPU901600984

LIFE
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by artist: Rude-α
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  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPU901901589

COLORS -CODE GEASS OPENING MIX-
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duration: PT1M32S
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by artist: FLOW
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPKS00601725

Touch off
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duration: PT4M16S
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by artist: UVERworld
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  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPU901900310

キヅアト
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by artist: Centimillimental
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPU901901495

まるつけ
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duration: PT3M50S
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by artist: ギヴン
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

ゴールデンタイム
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duration: PT3M8S
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by artist: Fujifabric
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  type: MusicAlbum
  date published: 2020-02-14

chAngE
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duration: PT4M5S
duration ms: 245973
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by artist: miwa
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  date published: 2020-02-14

ワンミーツハー
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duration: PT3M20S
duration ms: 200920
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by artist: Hitorie
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  type: MusicAlbum
  date published: 2020-02-14

found & lost
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by artist: Survive Said The Prophet
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  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPP301800365

Catch the Moment
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duration: PT4M38S
duration ms: 278426
explicit: false
by artist: LiSA
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

heavenly blue
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duration: PT5M18S
duration ms: 318800
explicit: false
by artist: Kalafina
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

MUKANJYO
type: MusicRecording
duration: PT3M5S
duration ms: 185653
explicit: false
by artist: Survive Said The Prophet
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPU901901409

さよならごっこ
type: MusicRecording
duration: PT4M30S
duration ms: 270000
explicit: false
by artist: amazarashi
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

katharsis
type: MusicRecording
duration: PT4M20S
duration ms: 260786
explicit: false
by artist: TK from Ling tosite sigure
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

火炎
type: MusicRecording
duration: PT3M33S
duration ms: 213973
explicit: false
by artist: QUEEN BEE
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPU901804207

航海の唄
type: MusicRecording
duration: PT4M40S
duration ms: 280586
explicit: false
by artist: Sayuri
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

カラノココロ
type: MusicRecording
duration: PT4M21S
duration ms: 261306
explicit: false
by artist: Anly
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  type: MusicAlbum
  date published: 2020-02-14

Howling
type: MusicRecording
duration: PT4M17S
duration ms: 257720
explicit: false
by artist: FLOW
by artist: GRANRODEO
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPU901703927

嘘
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duration: PT3M23S
duration ms: 203440
explicit: false
by artist: SID
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  type: MusicAlbum
  date published: 2020-02-14
isrc code: JPKS00900421

ポラリス
type: MusicRecording
duration: PT4M19S
duration ms: 259933
explicit: false
by artist: Hitorie
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  type: MusicAlbum
  date published: 2020-02-14

Departures 〜あなたにおくるアイの歌〜
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duration: PT4M12S
duration ms: 252320
explicit: false
by artist: EGOIST
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  type: MusicAlbum
  date published: 2020-02-14

ブラッドサーキュレーター
type: MusicRecording
duration: PT3M41S
duration ms: 221133
explicit: false
by artist: ASIAN KUNG-FU GENERATION
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  type: MusicAlbum
  date published: 2020-02-14

Don't Think Twice
type: MusicRecording
duration: PT4M32S
duration ms: 272133
explicit: false
by artist: Hikaru Utada
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

asphyxia
type: MusicRecording
duration: PT2M54S
duration ms: 174520
explicit: false
by artist: Cö shu Nie
in album: ANIME HITS - the originals
  type: MusicAlbum
  date published: 2020-02-14

ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
type: MusicAlbum
date published: 2012-11-07
track: 原☆宿
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  duration: PT4M24S
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  by artist: B型シンドローム
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    type: MusicAlbum
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track: ☆ギミギミ☆
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  by artist: SuG
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    date published: 2012-11-07
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    value: registered
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  additional property: CopyrightChainExplorerURL
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    value: https://artists.proofprofile.net/proofs/track/10rXwhS3lr9jDA2dRw0IU7.json
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/10rXwhS3lr9jDA2dRw0IU7
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea260f9e2f0851a4450630de46218183e3b2dbd1dfdc9dfa9c0dd214c4d2b4d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/10rXwhS3lr9jDA2dRw0IU7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/10rXwhS3lr9jDA2dRw0IU7.
    date published: 2026-06-13T13:32:09Z
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track: KISS or KISS
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    date published: 2012-11-07
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    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/22omBaF42cHolz8nHJfcwG.json
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/22omBaF42cHolz8nHJfcwG
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f0e5e57b98f864588b426f56ef14a7a510e8c1118e76ce5ca5a59efae1b8f1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/22omBaF42cHolz8nHJfcwG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/22omBaF42cHolz8nHJfcwG.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x17f0e5e57b98f864588b426f56ef14a7a510e8c1118e76ce5ca5a59efae1b8f1","isrc":"JPU900500701","name":"KISS or KISS","registered_at":"2026-06-07T07:00:50Z","spotify_id":"22omBaF42cHolz8nHJfcwG","type":"track"}
track: TYRANT too young
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track: PRIDE
  type: MusicRecording
  duration: PT4M18S
  duration ms: 258838
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  by artist: HIGH and MIGHTY COLOR
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    date published: 2012-11-07
track: Lacrimosa
  type: MusicRecording
  duration: PT4M14S
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  explicit: false
  by artist: Kalafina
  in album: ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
    type: MusicAlbum
    date published: 2012-11-07
track: still doll
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199773
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  by artist: Kanon Wakeshima
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    type: MusicAlbum
    date published: 2012-11-07
  isrc code: JPN100800441
track: Cherry咲く勇気!!
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  duration: PT3M59S
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  by artist: An Cafe
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    type: MusicAlbum
    date published: 2012-11-07
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  additional property: CopyrightID
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  additional property: OTSVerifyInstructions
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    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54bc05c27fe013334fd719d5ba11b9edda391c9855443aee2e3ed7c2356c2d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ykCVrhEa4dBMODdMD5hcg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ykCVrhEa4dBMODdMD5hcg.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0xb54bc05c27fe013334fd719d5ba11b9edda391c9855443aee2e3ed7c2356c2d0","isrc":"JPM900850002","name":"Cherry咲く勇気!!","registered_at":"2026-06-23T10:56:13Z","spotify_id":"6ykCVrhEa4dBMODdMD5hcg","type":"track"}
track: スマイライフ
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  duration: PT3M37S
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    type: MusicAlbum
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track: 桜音
track: コスモモバイル
track: Hi-Hi-Hi
track: ファッション・ドール

桜音
type: MusicRecording
duration: PT4M5S
duration ms: 245360
explicit: false
by artist: Piko
in album: ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
  type: MusicAlbum
  date published: 2012-11-07

コスモモバイル
type: MusicRecording
duration: PT2M49S
duration ms: 169973
explicit: false
by artist: 青春シャンプー
in album: ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
  type: MusicAlbum
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Hi-Hi-Hi
type: MusicRecording
duration: PT3M14S
duration ms: 194773
explicit: false
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  type: MusicAlbum
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ファッション・ドール
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duration: PT5M3S
duration ms: 303666
explicit: false
by artist: ケラ!モデルズ
in album: ケラ！ソン 〜KERA SONGS 13th Anniversary Collection〜
  type: MusicAlbum
  date published: 2012-11-07

Lacrimosa
type: MusicRecording
duration: PT4M14S
duration ms: 254720
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900900028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:27:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7elSn9tGQTOgVghLzJN1yX.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7elSn9tGQTOgVghLzJN1yX
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c58c14dc9fa6492f1d2c486c10bf856f9337e711204f2200a75deff97ce1f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7elSn9tGQTOgVghLzJN1yX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7elSn9tGQTOgVghLzJN1yX.
  date published: 2026-06-13T12:47:07Z

storia
type: MusicRecording
duration: PT3M38S
duration ms: 218040
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900900744
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T02:36:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/57W3wuQ2Igq10ed6ILflyw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/57W3wuQ2Igq10ed6ILflyw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409a063534ea4ceb2901c99d6890702a5eec778f861acd1335318ff42d2a5bba. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/57W3wuQ2Igq10ed6ILflyw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/57W3wuQ2Igq10ed6ILflyw.
  date published: 2026-06-13T15:41:10Z

光の旋律
type: MusicRecording
duration: PT6M13S
duration ms: 373760
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900901981
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:06:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4kGCEIEGq8R8k3PBGZHAMW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kGCEIEGq8R8k3PBGZHAMW
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"4kGCEIEGq8R8k3PBGZHAMW","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kGCEIEGq8R8k3PBGZHAMW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kGCEIEGq8R8k3PBGZHAMW.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xc3564eb1e2189794e3d30cb9d2b22be3729f5c51f33b7049444bea4d7f53aef2","isrc":"JPU900901981","name":"光の旋律","registered_at":"2026-06-06T09:06:12Z","spotify_id":"4kGCEIEGq8R8k3PBGZHAMW","type":"track"}

red moon
type: MusicRecording
duration: PT6M40S
duration ms: 400133
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:20:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7rfqoFRIC9VLaTJ0OPVAmr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7rfqoFRIC9VLaTJ0OPVAmr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de","isrc":"JPU901000101","name":"red moon","registered_at":"2026-06-07T12:20:24Z","spotify_id":"7rfqoFRIC9VLaTJ0OPVAmr","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7rfqoFRIC9VLaTJ0OPVAmr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7rfqoFRIC9VLaTJ0OPVAmr.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x497c78c366a0ec4739d0e9bfdd26835ebef6ba5f6f7a874856045bda1f0aa4de","isrc":"JPU901000101","name":"red moon","registered_at":"2026-06-07T12:20:24Z","spotify_id":"7rfqoFRIC9VLaTJ0OPVAmr","type":"track"}

misterioso
type: MusicRecording
duration: PT4M2S
duration ms: 242013
explicit: false
by artist: Kalafina
in album: 君の銀の庭
  type: MusicAlbum
  date published: 2013-11-06
isrc code: JPU901301238
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:54:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1UdAcNwonnmKUjZR5n8FrT.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1UdAcNwonnmKUjZR5n8FrT
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf114728ca82ec0bec1d3ce8c2dbc932ba46c965c2a24856fe1d6322e2f0d0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1UdAcNwonnmKUjZR5n8FrT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1UdAcNwonnmKUjZR5n8FrT.
  date published: 2026-06-13T17:25:41Z

Magia[quattro]
type: MusicRecording
duration: PT5M16S
duration ms: 316853
explicit: false
by artist: Kalafina
in album: ひかりふる
  type: MusicAlbum
  date published: 2012-10-24
isrc code: JPU901201403
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:01:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea4bc18ffa039fe65e48dec5a36ed52f2213e8b8f751147262287f40a6761cc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/20z9LowbUSLOowBWW6b4es.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20z9LowbUSLOowBWW6b4es
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4bc18ffa039fe65e48dec5a36ed52f2213e8b8f751147262287f40a6761cc2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/20z9LowbUSLOowBWW6b4es.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/20z9LowbUSLOowBWW6b4es.
  date published: 2026-06-13T13:32:09Z

君の銀の庭
type: MusicRecording
duration: PT5M7S
duration ms: 307200
explicit: false
by artist: Kalafina
in album: 君の銀の庭
  type: MusicAlbum
  date published: 2013-11-06
isrc code: JPU901301237
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:03:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5z0sTqtZ73NliGt9LYjUO4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5z0sTqtZ73NliGt9LYjUO4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"5z0sTqtZ73NliGt9LYjUO4","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5z0sTqtZ73NliGt9LYjUO4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5z0sTqtZ73NliGt9LYjUO4.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0xb2a1af8dacb3d54ee6b6caec24eb0197c358cbdbebb8cced744624a22b9b4eb9","isrc":"JPU901301237","name":"君の銀の庭","registered_at":"2026-06-06T09:03:51Z","spotify_id":"5z0sTqtZ73NliGt9LYjUO4","type":"track"}

未来
type: MusicRecording
duration: PT4M32S
duration ms: 272306
explicit: false
by artist: Kalafina
in album: ひかりふる
  type: MusicAlbum
  date published: 2012-10-24
isrc code: JPU901201402
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:08:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/210tDGTwv4EKo08kv3Az3K.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/210tDGTwv4EKo08kv3Az3K
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"210tDGTwv4EKo08kv3Az3K","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/210tDGTwv4EKo08kv3Az3K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/210tDGTwv4EKo08kv3Az3K.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x9f5825f92960a743d460c15213ecd73045721388fa3e4d1dc79fcbe5c2981a02","isrc":"JPU901201402","name":"未来","registered_at":"2026-06-06T09:08:00Z","spotify_id":"210tDGTwv4EKo08kv3Az3K","type":"track"}

百火撩乱
type: MusicRecording
duration: PT4M40S
duration ms: 280786
explicit: false
by artist: Kalafina
in album: 百火撩乱
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901701856
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:47:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6L4e6VVh1HA2908lmgdSII.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6L4e6VVh1HA2908lmgdSII
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4","isrc":"JPU901701856","name":"百火撩乱","registered_at":"2026-06-07T18:47:17Z","spotify_id":"6L4e6VVh1HA2908lmgdSII","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6L4e6VVh1HA2908lmgdSII.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6L4e6VVh1HA2908lmgdSII.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xffc443298603bc145bea3bd5a4e849c58aabdcd4dfa9962ca84ab488b47e7ab4","isrc":"JPU901701856","name":"百火撩乱","registered_at":"2026-06-07T18:47:17Z","spotify_id":"6L4e6VVh1HA2908lmgdSII","type":"track"}

カンタンカタン
type: MusicRecording
duration: PT5M33S
duration ms: 333520
explicit: false
by artist: Kalafina
in album: 百火撩乱
  type: MusicAlbum
  date published: 2017-08-09
isrc code: JPU901701857
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T06:06:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3IZljpwPmFQZfCKL1I1FhB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IZljpwPmFQZfCKL1I1FhB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d","isrc":"JPU901701857","name":"カンタンカタン","registered_at":"2026-06-11T06:06:07Z","spotify_id":"3IZljpwPmFQZfCKL1I1FhB","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IZljpwPmFQZfCKL1I1FhB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IZljpwPmFQZfCKL1I1FhB.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x7063e4abaa1c79b4d066ab7ad872f3c3f4524d22127520cd8096caa2e6dc413d","isrc":"JPU901701857","name":"カンタンカタン","registered_at":"2026-06-11T06:06:07Z","spotify_id":"3IZljpwPmFQZfCKL1I1FhB","type":"track"}

Kyrie
type: MusicRecording
duration: PT5M32S
duration ms: 332906
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T14:37:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2e6e2464284e7998862fea5004aff11b43b13c31dc45f713d63a43729853775
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7ARjpZQQtniufKjLtTMEPv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ARjpZQQtniufKjLtTMEPv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e6e2464284e7998862fea5004aff11b43b13c31dc45f713d63a43729853775. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ARjpZQQtniufKjLtTMEPv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ARjpZQQtniufKjLtTMEPv.
  date published: 2026-06-13T15:41:10Z

追憶
type: MusicRecording
duration: PT4M37S
duration ms: 277226
explicit: false
by artist: Kalafina
in album: 君の銀の庭
  type: MusicAlbum
  date published: 2013-11-06
isrc code: JPU901301239
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T06:06:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6dJPs7BYtZjAt4pPKtexAN.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dJPs7BYtZjAt4pPKtexAN
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0","isrc":"JPU901301239","name":"追憶","registered_at":"2026-06-11T06:06:11Z","spotify_id":"6dJPs7BYtZjAt4pPKtexAN","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6dJPs7BYtZjAt4pPKtexAN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6dJPs7BYtZjAt4pPKtexAN.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x8106ca075e902a9c3a3657a0a9f2417787662098773dc2298e9841cefe6817a0","isrc":"JPU901301239","name":"追憶","registered_at":"2026-06-11T06:06:11Z","spotify_id":"6dJPs7BYtZjAt4pPKtexAN","type":"track"}

ひかりふる
type: MusicRecording
duration: PT4M51S
duration ms: 291840
explicit: false
by artist: Kalafina
in album: ひかりふる
  type: MusicAlbum
  date published: 2012-10-24
isrc code: JPU901201401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:43:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/31pVFxgZROGaolgI211Og1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31pVFxgZROGaolgI211Og1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"31pVFxgZROGaolgI211Og1","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/31pVFxgZROGaolgI211Og1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31pVFxgZROGaolgI211Og1.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x590dbd6bcb20618566efa76b21bbc65aabfbca2e14e4cb39b68676092acf4f2b","isrc":"JPU901201401","name":"ひかりふる","registered_at":"2026-06-07T18:43:53Z","spotify_id":"31pVFxgZROGaolgI211Og1","type":"track"}

fantasia
type: MusicRecording
duration: PT5M21S
duration ms: 321333
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:02:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x171af1502b2ce9b984f982116c954b7fc2c63dfa5d6c8617d476942ee4b78724
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2qRaDZGPVGJ5ICAti6W71f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2qRaDZGPVGJ5ICAti6W71f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171af1502b2ce9b984f982116c954b7fc2c63dfa5d6c8617d476942ee4b78724. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qRaDZGPVGJ5ICAti6W71f.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2qRaDZGPVGJ5ICAti6W71f.
  date published: 2026-07-02T03:55:08Z

intermezzo
type: MusicRecording
duration: PT2M0S
duration ms: 120160
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T13:02:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8795e7c2f64583a6846c4c7b055bb9347f68c1b5e3942353d2aa4eae886ead8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0LX0PK7MBsNL85LcKiaPUt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LX0PK7MBsNL85LcKiaPUt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8795e7c2f64583a6846c4c7b055bb9347f68c1b5e3942353d2aa4eae886ead8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0LX0PK7MBsNL85LcKiaPUt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0LX0PK7MBsNL85LcKiaPUt.
  date published: 2026-07-02T03:55:08Z

星の謡
type: MusicRecording
duration: PT4M50S
duration ms: 290346
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T11:48:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0tUKBvOsukVmXcUyIsMV8z.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0tUKBvOsukVmXcUyIsMV8z
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db","isrc":"JPU901000107","name":"星の謡","registered_at":"2026-06-18T11:48:20Z","spotify_id":"0tUKBvOsukVmXcUyIsMV8z","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0tUKBvOsukVmXcUyIsMV8z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0tUKBvOsukVmXcUyIsMV8z.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x034cf7ce5182f8772061523a38c4eab7b144bb848d6c14c8930b4d94ddcda4db","isrc":"JPU901000107","name":"星の謡","registered_at":"2026-06-18T11:48:20Z","spotify_id":"0tUKBvOsukVmXcUyIsMV8z","type":"track"}

progressive
type: MusicRecording
duration: PT5M42S
duration ms: 342493
explicit: false
by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU900901464
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:36:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05f83639d704cb2a03aada1584b1b5b7e0991a3fa5ad1345ca095bc08df921b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/24hQL4CzqjHny6hMrDWnu1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/24hQL4CzqjHny6hMrDWnu1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-02T03:55:08Z

I have a dream
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in album: Red Moon
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1c00e8d20d276854a8bca1ac3bb2053a1aa47529e5f4d6b4b45ad1a85af6af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3MVVWILc4rTIBPeaMEctYs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3MVVWILc4rTIBPeaMEctYs.
  date published: 2026-07-02T03:55:08Z
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テトテトメトメ
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by artist: Kalafina
in album: Red Moon
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  date published: 2010-03-17
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f7d524a7402ef821444b89ee86b73f85a752c5c0b3dc9ae0316d07e704bcda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5NcSAZOB6jy79HaxNHdcvz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5NcSAZOB6jy79HaxNHdcvz.
  date published: 2026-07-02T03:55:08Z
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闇の唄
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by artist: Kalafina
in album: Red Moon
  type: MusicAlbum
  date published: 2010-03-17
isrc code: JPU901000106
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965435c946872143bfd41b25b89cf30f56cd4494018b371e1a4958493dc96333. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4IUo5qKHHPCAzucLCh9WBr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4IUo5qKHHPCAzucLCh9WBr.
  date published: 2026-07-02T03:55:08Z
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