MATSU
type: MusicGroup
description: Matsu may refer to: Mazu, or Matsu, a sea goddess in Chinese folk religion Matsu-class destroyer, a series of Japanese warships Matsu Islands (Lienchiang County), Fujian, Republic of China (Taiwan)
popularity: 25
followers: 1182
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadcb6f3abd3a0293fd495af19b51d95d5f5871d6e2e7258c7852a7aa5f5350d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb4d839e-cefc-4d83-961e-763a756d90a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb4d839e-cefc-4d83-961e-763a756d90a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb4d839e-cefc-4d83-961e-763a756d90a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcb6f3abd3a0293fd495af19b51d95d5f5871d6e2e7258c7852a7aa5f5350d6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb4d839e-cefc-4d83-961e-763a756d90a0.json and https://artists.proofprofile.net/proofs/artist/bb4d839e-cefc-4d83-961e-763a756d90a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Talking Time
  type: MusicAlbum
  date published: 2014-08-08
album: inner flame
  type: MusicAlbum
  date published: 2014-11-02
album: Cooking Time
  type: MusicAlbum
  date published: 2014-11-11
album: Hard Wall
  type: MusicAlbum
  date published: 2014-11-13
album: かぼちゃの館
  type: MusicAlbum
  date published: 2015-10-16
album: 夕焼け
  type: MusicAlbum
  date published: 2016-05-20
album: Deep Search
  type: MusicAlbum
  date published: 2016-06-12
album: 無人駅
  type: MusicAlbum
  date published: 2017-11-30
album: 遠足マーチ
  type: MusicAlbum
  date published: 2020-11-12
album: Orange Cake
  type: MusicAlbum
  date published: 2020-12-17
album: Orange Cake
  type: MusicAlbum
  date published: 2020-12-17
album: Unknown substance
  type: MusicAlbum
  date published: 2021-01-30
album: Unknown substance
  type: MusicAlbum
  date published: 2021-01-30
album: Usual Happiness
  type: MusicAlbum
  date published: 2021-02-27
album: Usual Happiness
  type: MusicAlbum
  date published: 2021-02-27
album: はらっぱ探検隊
  type: MusicAlbum
  date published: 2021-03-27
album: harappatankentai
  type: MusicAlbum
  date published: 2021-03-27
album: Horror Story
  type: MusicAlbum
  date published: 2021-07-10
album: Horror Story
  type: MusicAlbum
  date published: 2021-07-10
album: Halloween Night
  type: MusicAlbum
  date published: 2021-11-14
album: Halloween Night
  type: MusicAlbum
  date published: 2021-11-14
album: Music for morning coffee and cooking
  type: MusicAlbum
  date published: 2021-11-26
album: Music for morning coffee and cooking
  type: MusicAlbum
  date published: 2021-11-26
album: Mission to Hope
  type: MusicAlbum
  date published: 2021-12-23
album: Mission to Hope
  type: MusicAlbum
  date published: 2021-12-23
album: Cyber Retro Market
  type: MusicAlbum
  date published: 2022-02-10
album: Cyber Retro Market
  type: MusicAlbum
  date published: 2022-02-10
album: Excursion March
  type: MusicAlbum
  date published: 2022-06-24
album: 遠足マーチ
  type: MusicAlbum
  date published: 2022-06-24
album: Shall we meet？
  type: MusicAlbum
  date published: 2022-11-01
  track: Shall we meet？
    type: MusicRecording
    duration: PT2M26S
    duration ms: 146318
    explicit: false
    by artist: MATSU
    in album: Shall we meet？
      type: MusicAlbum
      date published: 2022-11-01
    isrc code: TCJPT2244171
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:33:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xde8caeb27851c10fbf1c04b95b6f72e35ba72503e79b2ff714ee2ae5eb2bddd3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2244171
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8caeb27851c10fbf1c04b95b6f72e35ba72503e79b2ff714ee2ae5eb2bddd3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2244171.
      date published: 2026-07-05T18:48:28Z
    audio: Shall we meet？
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.988
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.798
      additional property: Energy
        type: PropertyValue
        value: 0.893
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.097
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.805
      additional property: Liveness
        type: PropertyValue
        value: 0.058
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.959
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.046
      additional property: Key Name
      additional property: Mode Name
album: Shall we meet?
album: Yasashii Jikan
album: Music for dinner and cooking
album: Kimyouna Annainin
album: 奇妙な案内人
album: Chayanite
album: 茶屋にて
album: Alphard
album: 時計図書館
album: Tokei Toshokan
album: A Jolly Day
album: Horror Room
album: Starry Dreams
album: Disappeared Paintings
album: 消えた絵画
album: Rain and Hydrangea
album: 雨と紫陽花
album: Maze with No Exit
album: 出口のない迷路
album: 夏の終着駅
album: Summer Terminus
album: Suspicious Potion
album: サカナだった頃
album: When I Was a Fish
album: 時を刻む森
album: A Forest Making Time
album: Distant Cumulonimbus
album: 遠い入道雲
album: Piano Piece Collection
album: Yunagi Slow Life
album: 夕凪スローライフ
album: Little Garden
album: Crystal Summer
album: In the jungle

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Shall we meet?
type: MusicAlbum
date published: 2022-11-01

Yasashii Jikan
type: MusicAlbum
date published: 2022-12-07

Music for dinner and cooking
type: MusicAlbum
date published: 2022-12-09

Music for dinner and cooking
type: MusicAlbum
date published: 2022-12-09

Kimyouna Annainin
type: MusicAlbum
date published: 2022-12-14

奇妙な案内人
type: MusicAlbum
date published: 2022-12-14
track: 奇妙な案内人
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173475
  explicit: false
  by artist: MATSU
  in album: 奇妙な案内人
    type: MusicAlbum
    date published: 2022-12-14
  isrc code: TCJPT2296498
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:45:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x30c7571035812c7da05111d303a8fe0c70df3f863fadb68f7e5e650138446aeb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2296498
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c7571035812c7da05111d303a8fe0c70df3f863fadb68f7e5e650138446aeb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2296498.
    date published: 2026-07-03T21:18:05Z
  audio: 奇妙な案内人
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.001
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.792
    additional property: Energy
      type: PropertyValue
      value: 0.271
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.961
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.882
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.238
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.307
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Chayanite
type: MusicAlbum
date published: 2022-12-28
track: Chayanite
  type: MusicRecording
  duration: PT1M28S
  duration ms: 88275
  explicit: false
  by artist: MATSU
  in album: Chayanite
    type: MusicAlbum
    date published: 2022-12-28
  isrc code: TCJPU2216107
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T14:35:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x084f95eebb9dda881899d5b3b3ed396e51c717fd010b1eeef34f69fc27bf6f1c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2216107
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084f95eebb9dda881899d5b3b3ed396e51c717fd010b1eeef34f69fc27bf6f1c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2216107.
    date published: 2026-07-05T01:12:41Z
  audio: Chayanite
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 86.992
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.687
    additional property: Energy
      type: PropertyValue
      value: 0.359
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.75
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.372
    additional property: Liveness
      type: PropertyValue
      value: 0.262
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.751
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.583
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

茶屋にて
type: MusicAlbum
date published: 2022-12-28

Alphard
type: MusicAlbum
date published: 2023-01-05

Alphard
type: MusicAlbum
date published: 2023-01-05

時計図書館
type: MusicAlbum
date published: 2023-02-10
track: 時計図書館
  type: MusicRecording
  duration: PT2M20S
  duration ms: 140500
  explicit: false
  by artist: MATSU
  in album: 時計図書館
    type: MusicAlbum
    date published: 2023-02-10
  isrc code: TCJPU2371084
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T02:24:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x921482c4a17aab46ab4c5374aa14b8abefae6ec11f743f897a2612e0aadca4d5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2371084
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921482c4a17aab46ab4c5374aa14b8abefae6ec11f743f897a2612e0aadca4d5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2371084.
    date published: 2026-07-04T10:04:33Z
  audio: 時計図書館
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.014
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.937
    additional property: Energy
      type: PropertyValue
      value: 0.277
    additional property: Speechiness
      type: PropertyValue
      value: 0.097
    additional property: Acousticness
      type: PropertyValue
      value: 0.95
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.915
    additional property: Liveness
      type: PropertyValue
      value: 0.072
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.976
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.635
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Tokei Toshokan
type: MusicAlbum
date published: 2023-02-10

A Jolly Day
type: MusicAlbum
date published: 2023-03-07

A Jolly Day
type: MusicAlbum
date published: 2023-03-07

Horror Room
type: MusicAlbum
date published: 2023-03-17

Horror Room
type: MusicAlbum
date published: 2023-03-17

Starry Dreams
type: MusicAlbum
date published: 2023-05-30

Starry Dreams
type: MusicAlbum
date published: 2023-05-30

Disappeared Paintings
type: MusicAlbum
date published: 2023-05-31

消えた絵画
type: MusicAlbum
date published: 2023-05-31

Rain and Hydrangea
type: MusicAlbum
date published: 2023-07-22
track: Rain and Hydrangea
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208245
  explicit: false
  by artist: MATSU
  in album: Rain and Hydrangea
    type: MusicAlbum
    date published: 2023-07-22
  isrc code: TCJPW2378035
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T16:42:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x383bb7c16a29c7332ccbe06af30e39b3d28922d4c3668161b481f5dd834e5483
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958316
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958316
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2378035
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T19:42:29Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383bb7c16a29c7332ccbe06af30e39b3d28922d4c3668161b481f5dd834e5483. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2378035.
    date published: 2026-07-16T19:42:29Z
  audio: Rain and Hydrangea
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 202.354
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
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    additional property: Valence (Positivity)
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雨と紫陽花
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date published: 2023-07-22

Maze with No Exit
type: MusicAlbum
date published: 2023-09-22

出口のない迷路
type: MusicAlbum
date published: 2023-09-22

夏の終着駅
type: MusicAlbum
date published: 2023-09-23

Summer Terminus
type: MusicAlbum
date published: 2023-09-23

Suspicious Potion
type: MusicAlbum
date published: 2023-10-22

サカナだった頃
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date published: 2024-02-21
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-16T16:14:30Z
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When I Was a Fish
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時を刻む森
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A Forest Making Time
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Distant Cumulonimbus
type: MusicAlbum
date published: 2024-08-10

遠い入道雲
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-18T02:58:58Z
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Piano Piece Collection
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date published: 2024-09-05
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-16T05:02:52Z
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    additional property: Danceability
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track: 露草
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-03T08:56:35Z
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  subject of: OpenTimestamps Proof of Existence
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0c013af6a7bafd9f228ef0a7334d0bff03d65aad34cbc6b8de976162eab920. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2474655.
date published: 2026-07-20T09:45:25Z

Alphard - Piano Version
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Piano Piece Collection
type: MusicAlbum
date published: 2024-09-05

Yunagi Slow Life
type: MusicAlbum
date published: 2024-09-22

夕凪スローライフ
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date published: 2024-09-22

Little Garden
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Crystal Summer
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In the jungle
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Cosmic Mini
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Crystal Summer
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summit meeting
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date published: 2024-11-28

Suspicious Jar
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Afternoon Musette
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The end of a day
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date published: 2024-11-28

windmill
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謹賀新年
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Happy New Year
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The end of a day
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One step forward
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Ganache
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Ganache
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One step forward
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Dew
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Homemade Scones
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Hatena Puzzle
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ENCOUNTER
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peace of mind
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魔女の小部屋
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Cooking Time
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flow of the river
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Institute of Starry Sky
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On the Rocks
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Underwater Cave
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bosquet
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house of terror
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The Night When the Snowflakes Fall
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Stakeout
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Retro Table Clock
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Game gadget at midnight
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Blue Water
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sea of trees
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inner flame
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Witch's Little Room
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Life with Windmills
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first forest
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夕焼け
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ほしぞら研究所
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ruins
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Suikinkutsu in the East
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戦いの旅路を征く
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grain of wood
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The Wind Passed
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Season of Autumn Leaves
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Quirky Shop
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Old Experiment Facility
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Forest Ruins
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butler
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Take a Chance!
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Late Night Light
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Komorebi Cafe
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first forest
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どたばたハプニング！
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soft rime
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Usual After School
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Tea and Cookies
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Sunset Farm
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Summer Adventure
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Sound of Waves
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Cooking Time
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Cocktail Glass
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strain
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Deep Search
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Ravioli
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flow of the river
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Sunset
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Invasion operation of Mars base
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Giza-giza
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A Journey Full of Battles
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Equipment
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Present Box
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Ravioli
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Train
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devil's castle
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Hard Wall
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ruins
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Are You a Fairy Girl?
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Let's go for a walk!
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Light on the road
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Pumpkin's House
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海中洞窟
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木のお皿
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Talking Time
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風車のある暮らし
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木漏れ日カフェ
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Upodo
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Wheat Field
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el matador
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detergent
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Stone Pavement Streets
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Preparation for Winter
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Menuet
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Deep Search
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Talking Time
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Wooden Plates
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Assault of enemy
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雪の結晶が降る夜
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東の水琴窟
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Run through space
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Object Being Sought
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Calm Afternoon
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Assault of enemy
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Happening!
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古い実験施設
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Japanese love song
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ナミノネ
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Blue Water
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Let's Go to the Park on a Sunny Day
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恋歌
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sadness room
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grain of wood
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wanderer
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Hard Wall
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voltage!
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variant
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tactics
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peace of mind
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Oyasumi Day
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New Green and Light
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Forest Temptation
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Cocktail Glass
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Train
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Light on the road
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Run through space
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かぼちゃの館
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Silhouette
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Gondola Travel
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無人駅
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Machikado Bakery
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雪の終わりに
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How to Cook
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industrial zone
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Soft and Pleasant Afternoon
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Unmanned Station
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At the End of Snow
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星灯りの夜
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Waltz of Melancholy
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Sleeping Jellyfish
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眠るクラゲ
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Starlight Night
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憂いのワルツ
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How to Cook
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影法師
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Spooky Jack Lanterns
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On a Bench Under the Tree
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Nice day
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See You Tomorrow
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Gentle Time
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Hometown
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Flickering Warm Light
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静かな夜を
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Rest in the Quiet Night
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日本庭園-冬
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結び
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日本庭園-冬
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf86122bae0d016c3f37394957a201e066b4754f83291a7c0ed55668bee1a528. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005713.
  date published: 2026-07-02T03:30:09Z
audio: 日本庭園-冬
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.288
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.595
  additional property: Energy
    type: PropertyValue
    value: 0.544
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.935
  additional property: Liveness
    type: PropertyValue
    value: 0.384
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.465
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.496
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

京の都
type: MusicRecording
duration: PT3M5S
duration ms: 185823
explicit: false
by artist: MATSU
in album: 和風のリラックスBGM -箏や尺八、篠笛などの日本の伝統的な-
  type: MusicAlbum
  date published: 2020-07-15
isrc code: JPW792005714
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T23:36:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x706423673bc4e09523ecad4cd59aaafc3f7364ff48f13bede1c0b67f3dd11faf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005714
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706423673bc4e09523ecad4cd59aaafc3f7364ff48f13bede1c0b67f3dd11faf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005714.
  date published: 2026-06-13T13:32:09Z
audio: 京の都
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.796
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.618
  additional property: Energy
    type: PropertyValue
    value: 0.552
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.232
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.159
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.536
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.713
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Japan Traditional 3
type: MusicRecording
duration: PT2M19S
duration ms: 139500
explicit: false
by artist: MATSU
in album: 和風のリラックスBGM 4 -箏や尺八、篠笛などの日本の伝統的な-
  type: MusicAlbum
  date published: 2020-11-04
isrc code: JPW792006193
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T11:31:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd96718d0c95426a4c7818e843234b0725c325003178cc61f0dfabc2ea5105e23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960105
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960105
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792006193
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:35:17Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96718d0c95426a4c7818e843234b0725c325003178cc61f0dfabc2ea5105e23. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792006193.
  date published: 2026-07-29T12:35:17Z
audio: Japan Traditional 3
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.978
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.831
  additional property: Energy
    type: PropertyValue
    value: 0.396
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.539
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.367
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.33
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

和ごころ
type: MusicRecording
duration: PT3M19S
duration ms: 199242
explicit: false
by artist: MATSU
in album: 和風のリラックスBGM 4 -箏や尺八、篠笛などの日本の伝統的な-
  type: MusicAlbum
  date published: 2020-11-04
isrc code: JPW792005806
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T17:35:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x49dfc25aff193c90c7df6748bf6170a1b7d5b0f7091c6b2ab888977e7a7c709b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960164
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960164
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005806
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:23:05Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dfc25aff193c90c7df6748bf6170a1b7d5b0f7091c6b2ab888977e7a7c709b. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792005806.
  date published: 2026-07-29T23:23:05Z
audio: 和ごころ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.548
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.683
  additional property: Energy
    type: PropertyValue
    value: 0.196
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.139
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.463
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.386
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Believe in
type: MusicRecording
duration: PT3M39S
duration ms: 219255
explicit: false
by artist: MATSU
in album: 仕事がはかどるPOPS -集中力が高まるインストゥルメンタルBGM-
  type: MusicAlbum
  date published: 2020-03-04
isrc code: JPW792000063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T11:40:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fb06308ed42c8a86d75e5f08dec31ff6472ab4ed63623240aa13bd6594fe422
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960105
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960105
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792000063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T12:35:17Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb06308ed42c8a86d75e5f08dec31ff6472ab4ed63623240aa13bd6594fe422. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792000063.
  date published: 2026-07-29T12:35:17Z
audio: Believe in
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.228
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.704
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.525
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.66
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.525
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.265
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Shimmer
type: MusicRecording
duration: PT3M21S
duration ms: 201977
explicit: false
by artist: MATSU
in album: 仕事が捗るテレワーク用BGMヒッツ -奏-
  type: MusicAlbum
  date published: 2020-09-16
isrc code: JPW792000015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:20:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8634777398077c91a1d35b8d0107987b66b4edb98075c52fe5f677b023cc21e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792000015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8634777398077c91a1d35b8d0107987b66b4edb98075c52fe5f677b023cc21e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792000015.
  date published: 2026-07-08T03:20:19Z
audio: Shimmer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.07
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.579
  additional property: Energy
    type: PropertyValue
    value: 0.743
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.126
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.485
  additional property: Liveness
    type: PropertyValue
    value: 0.267
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.677
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.898
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Believe in
type: MusicRecording
duration: PT3M39S
duration ms: 219255
explicit: false
by artist: MATSU
in album: 仕事が捗るテレワーク用BGMヒッツ -奏-
  type: MusicAlbum
  date published: 2020-09-16
isrc code: JPW792000063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fb06308ed42c8a86d75e5f08dec31ff6472ab4ed63623240aa13bd6594fe422
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792000063
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb06308ed42c8a86d75e5f08dec31ff6472ab4ed63623240aa13bd6594fe422. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792000063.
  date published: 2026-07-31T17:29:52Z
audio: Believe in
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.228
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.704
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.525
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.66
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.525
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.265
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Introduce 3
type: MusicRecording
duration: PT2M15S
duration ms: 135406
explicit: false
by artist: MATSU
in album: 仕事が捗るテレワーク用BGMヒッツ -奏-
  type: MusicAlbum
  date published: 2020-09-16
isrc code: JPW792006198
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:37:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8555c235c5a869ff70e98083a9b18994e40b34d195f58899eee4a8fbb44bfb64
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792006198
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8555c235c5a869ff70e98083a9b18994e40b34d195f58899eee4a8fbb44bfb64. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW792006198.
  date published: 2026-07-08T03:22:41Z
audio: Introduce 3
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.565
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.57
  additional property: Energy
    type: PropertyValue
    value: 0.781
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.772
  additional property: Liveness
    type: PropertyValue
    value: 0.069
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.657
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.885
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major