samayuzame
type: MusicGroup
genre: japanese indie
popularity: 17
followers: 3976
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe755762a92d15688881c20f0ce63110faa616c5e2b87970a0f47e608d9022e1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f84693b2-ab26-4b94-b6c6-2752eee55154.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f84693b2-ab26-4b94-b6c6-2752eee55154.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f84693b2-ab26-4b94-b6c6-2752eee55154
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe755762a92d15688881c20f0ce63110faa616c5e2b87970a0f47e608d9022e1d. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f84693b2-ab26-4b94-b6c6-2752eee55154.json and https://artists.proofprofile.net/proofs/artist/f84693b2-ab26-4b94-b6c6-2752eee55154.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
album: 何度だって新しく生まれ変わる
  type: MusicAlbum
  date published: 2020-04-01
album: Nando datte Atarashiku Umarekawaru
  type: MusicAlbum
  date published: 2020-04-01
album: 宿木
  type: MusicAlbum
  date published: 2020-07-27
album: YADORIGI
  type: MusicAlbum
  date published: 2020-07-27
album: Flick'n'diE
  type: MusicAlbum
  date published: 2020-09-02
album: Flick'n'diE
  type: MusicAlbum
  date published: 2020-09-02
album: Flick'n'diE
  type: MusicAlbum
  date published: 2020-09-02
album: きんいろのひ
  type: MusicAlbum
  date published: 2020-10-23
album: Golden Days (feat. Sasagawa Mao)
  type: MusicAlbum
  date published: 2020-10-23
album: 宿木
  type: MusicAlbum
  date published: 2020-11-25
  track: きんいろのひ (feat. 笹川真生)
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220015
    explicit: false
    by artist: samayuzame
    in album: 宿木
      type: MusicAlbum
      date published: 2020-11-25
    genre: japanese indie
    isrc code: JPS801945755
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:23:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xda71db1431007420df1d46df710a7e9c663a53f966f170004ffaf86972b6325b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS801945755
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda71db1431007420df1d46df710a7e9c663a53f966f170004ffaf86972b6325b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPS801945755.
      date published: 2026-07-04T11:19:20Z
    audio: きんいろのひ (feat. 笹川真生)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.018
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.491
      additional property: Energy
        type: PropertyValue
        value: 0.59
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.116
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.359
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.436
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 宿木
  type: MusicAlbum
  date published: 2020-11-25
album: YADORIGI
  type: MusicAlbum
  date published: 2020-11-25
album: 僕の惑星
  type: MusicAlbum
  date published: 2021-02-24
album: 僕の惑星
  type: MusicAlbum
  date published: 2021-02-24
album: My Planet
  type: MusicAlbum
  date published: 2021-02-24
album: Lotus Farm
  type: MusicAlbum
  date published: 2021-04-14
album: Lotus Farm
  type: MusicAlbum
  date published: 2021-04-14
album: Lotus Farm
  type: MusicAlbum
  date published: 2021-04-14
album: 累累
  type: MusicAlbum
  date published: 2021-06-09
album: 累累
  type: MusicAlbum
  date published: 2021-06-09
album: COLORS
  type: MusicAlbum
  date published: 2021-06-09
album: 奈落の黙示録
  type: MusicAlbum
  date published: 2021-07-14
album: 奈落の黙示録
  type: MusicAlbum
  date published: 2021-07-14
album: Apocalypse Now
  type: MusicAlbum
  date published: 2021-07-14
album: Plantoid
  type: MusicAlbum
  date published: 2021-07-28
album: Plantoid
  type: MusicAlbum
  date published: 2021-07-28
album: クロニック・クリニック
album: Chronic Clinic
album: Tsukinami
album: ツキナミ
album: かわいいね
album: Kawaii ne
album: 夜間遊泳
album: Night swimming
album: One-man Online Live theMOON'22〈ef〉
album: One-man Online Live theMOON'22<ef>
album: 甘き心中はプールサイドで
album: Sweet Suicide
album: Euphoric Escape
album: Sweet Suicide (world's end girlfriend Remix)
album: 甘き心中はプールサイドで (world's end girlfriend Remix)
album: City of Romantica
album: For the Dead Maiden II
album: 亡き乙女のためのⅡ
album: Cinderella Complex
album: シンデレラ・コンプレックス
album: metaphor
album: butcher knife
album: no aid(ea)
album: トキセミア
track: Slaughterhouse (feat. samayuzame)
track: Torture in heaven (feat. samayuzame)
track: Petals full of holes (feat. samayuzame)
track: The Gaze of Orpheus (feat. samayuzame)
track: Möbius (feat. samayuzame)
track: Glare (feat. samayuzame)
track: Two Alone (feat. samayuzame)

Slaughterhouse (feat. samayuzame)
type: MusicRecording
duration: PT0M50S
duration ms: 50581
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
isrc code: TCJPX2312823
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T09:31:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05200ec49bf793ed5cc680fdf26112e8255a8976475adc216972e7fa54da5702
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312823
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05200ec49bf793ed5cc680fdf26112e8255a8976475adc216972e7fa54da5702. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPX2312823.
  date published: 2026-07-02T03:55:08Z
audio: Slaughterhouse (feat. samayuzame)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.44
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.405
  additional property: Energy
    type: PropertyValue
    value: 0.168
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.748
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.569
  additional property: Liveness
    type: PropertyValue
    value: 0.201
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.364
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.865
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Torture in heaven (feat. samayuzame)
type: MusicRecording
duration: PT1M21S
duration ms: 81425
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
isrc code: TCJPX2312856
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T05:11:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28c6f7c8685420e934f5d05c7c2663e84e311b7a239711e9cf2a1745ef8131b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312856
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956889
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-06T06:56:49+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c6f7c8685420e934f5d05c7c2663e84e311b7a239711e9cf2a1745ef8131b7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPX2312856.
  date published: 2026-07-06T07:16:32Z
audio: Torture in heaven (feat. samayuzame)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.962
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.414
  additional property: Energy
    type: PropertyValue
    value: 0.243
  additional property: Speechiness
    type: PropertyValue
    value: 0.192
  additional property: Acousticness
    type: PropertyValue
    value: 0.492
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.347
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.442
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.202
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Petals full of holes (feat. samayuzame)
type: MusicRecording
duration: PT1M13S
duration ms: 73000
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9933a63c532f667dd44e9d07f9abbe5e8f3cac880725cf89193c47f713e7e582. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/TCJPX2312835.
  date published: 2026-07-29T11:30:20Z
audio: Petals full of holes (feat. samayuzame)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.131
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.443
  additional property: Energy
    type: PropertyValue
    value: 0.473
  additional property: Speechiness
    type: PropertyValue
    value: 0.488
  additional property: Acousticness
    type: PropertyValue
    value: 0.51
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.334
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.321
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.491
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: TCJPX2312835
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960099
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T11:30:20+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312835
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960099
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:30:20+00:00
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

The Gaze of Orpheus (feat. samayuzame)
type: MusicRecording
duration: PT1M51S
duration ms: 111635
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07b917cd990838dd95333ed38de3df92bdfa769ec8de7099a5d2f93504105c5. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/TCJPX2312853.
  date published: 2026-07-30T01:32:48Z
audio: The Gaze of Orpheus (feat. samayuzame)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.912
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.368
  additional property: Energy
    type: PropertyValue
    value: 0.131
  additional property: Speechiness
    type: PropertyValue
    value: 0.159
  additional property: Acousticness
    type: PropertyValue
    value: 0.874
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.125
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.024
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: TCJPX2312853
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960185
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T01:32:48+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312853
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960185
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960185
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:32:48+00:00
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

Möbius (feat. samayuzame)
type: MusicRecording
duration: PT3M21S
duration ms: 201811
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277b22d3c3eb83d52f5f302f386786e634908c9ff1706e7cba419ee802b372d7. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/TCJPX2312858.
  date published: 2026-07-30T12:51:24Z
audio: Möbius (feat. samayuzame)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Key Name
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isrc code: TCJPX2312858
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312858
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T12:51:24+00:00
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

Glare (feat. samayuzame)
type: MusicRecording
duration: PT3M24S
duration ms: 204000
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74df59c9feb5d072e7d039f8c55fbcfa296aa99aeee0b91a628f948f3e6da07. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCJPX2312862.
  date published: 2026-07-29T19:35:34Z
audio: Glare (feat. samayuzame)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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isrc code: TCJPX2312862
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312862
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
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

Two Alone (feat. samayuzame)
type: MusicRecording
duration: PT2M18S
duration ms: 138854
explicit: false
by artist: World's End Girlfriend
by artist: samayuzame
in album: Resistance & The Blessing
  type: MusicAlbum
  date published: 2023-09-09
genre: math-rock
genre: post-rock
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce0f3cc5557e171a56969bf9d5ff48aceeb607ea8d14dd70cbb9ac793db24d8. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/TCJPX2312866.
  date published: 2026-07-30T00:39:11Z
audio: Two Alone (feat. samayuzame)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: TCJPX2312866
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2312866
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
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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

Plantoid
type: MusicAlbum
date published: 2021-07-28

クロニック・クリニック
type: MusicAlbum
date published: 2021-11-24

クロニック・クリニック
type: MusicAlbum
date published: 2021-11-24

Chronic Clinic
type: MusicAlbum
date published: 2021-11-24

Tsukinami
type: MusicAlbum
date published: 2022-03-09

ツキナミ
type: MusicAlbum
date published: 2022-03-09

ツキナミ
type: MusicAlbum
date published: 2022-03-09

かわいいね
type: MusicAlbum
date published: 2022-04-06

Kawaii ne
type: MusicAlbum
date published: 2022-04-06

夜間遊泳
type: MusicAlbum
date published: 2022-05-11

夜間遊泳
type: MusicAlbum
date published: 2022-05-11

Night swimming
type: MusicAlbum
date published: 2022-05-11

One-man Online Live theMOON'22〈ef〉
type: MusicAlbum
date published: 2022-10-19

One-man Online Live theMOON'22<ef>
type: MusicAlbum
date published: 2022-10-19

甘き心中はプールサイドで
type: MusicAlbum
date published: 2023-01-25
track: 甘き心中はプールサイドで
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256797
  explicit: false
  by artist: samayuzame
  in album: 甘き心中はプールサイドで
    type: MusicAlbum
    date published: 2023-01-25
  genre: japanese indie
  isrc code: TCJPU2332498
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T12:35:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d3051271b2afd3202efd8f43b8d4d1d5db99ff91216c403ae173fb55a5c830a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958300
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958300
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2332498
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:14:30Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3051271b2afd3202efd8f43b8d4d1d5db99ff91216c403ae173fb55a5c830a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPU2332498.
    date published: 2026-07-16T16:14:30Z
  audio: 甘き心中はプールサイドで
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.714
    additional property: Energy
      type: PropertyValue
      value: 0.743
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.023
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.008
    additional property: Liveness
      type: PropertyValue
      value: 0.237
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.503
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.722
    additional property: Key Name
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      value: F
    additional property: Mode Name
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Sweet Suicide
type: MusicAlbum
date published: 2023-01-25

Euphoric Escape
type: MusicAlbum
date published: 2023-02-22

Euphoric Escape
type: MusicAlbum
date published: 2023-02-22

Sweet Suicide (world's end girlfriend Remix)
type: MusicAlbum
date published: 2023-04-19

甘き心中はプールサイドで (world's end girlfriend Remix)
type: MusicAlbum
date published: 2023-04-19

City of Romantica
type: MusicAlbum
date published: 2023-06-21

City of Romantica
type: MusicAlbum
date published: 2023-06-21

For the Dead Maiden II
type: MusicAlbum
date published: 2024-01-24

亡き乙女のためのⅡ
type: MusicAlbum
date published: 2024-01-24

Cinderella Complex
type: MusicAlbum
date published: 2024-04-24

シンデレラ・コンプレックス
type: MusicAlbum
date published: 2024-04-24

metaphor
type: MusicAlbum
date published: 2024-06-26

metaphor
type: MusicAlbum
date published: 2024-06-26

butcher knife
type: MusicAlbum
date published: 2024-09-25
track: 夜顔の告白
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215747
  explicit: false
  by artist: samayuzame
  in album: butcher knife
    type: MusicAlbum
    date published: 2024-09-25
  genre: japanese indie
  isrc code: TCJPB2481220
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-20T03:28:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeedcad188634f786534a8807b5256333912dc5b55649adef45f70cd0a2a6e187
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958816
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2481220
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T06:30:22Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedcad188634f786534a8807b5256333912dc5b55649adef45f70cd0a2a6e187. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:30:22Z), 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/TCJPB2481220.
    date published: 2026-07-20T06:30:22Z
  audio: 夜顔の告白
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 156
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.487
    additional property: Energy
      type: PropertyValue
      value: 0.959
    additional property: Speechiness
      type: PropertyValue
      value: 0.107
    additional property: Acousticness
      type: PropertyValue
      value: 0.143
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.369
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.542
    additional property: Loudness (dB)
      type: PropertyValue
      value: -1.567
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

butcher knife
type: MusicAlbum
date published: 2024-09-25
track: Moonflower Confession
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215747
  explicit: false
  by artist: samayuzame
  in album: butcher knife
    type: MusicAlbum
    date published: 2024-09-25
  genre: japanese indie
  isrc code: TCJPB2481220
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeedcad188634f786534a8807b5256333912dc5b55649adef45f70cd0a2a6e187
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958955
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958955
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2481220
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T05:23:46Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedcad188634f786534a8807b5256333912dc5b55649adef45f70cd0a2a6e187. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:23:46Z), 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/TCJPB2481220.
    date published: 2026-07-21T05:23:46Z
  audio: Moonflower Confession
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 156
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.487
    additional property: Energy
      type: PropertyValue
      value: 0.959
    additional property: Speechiness
      type: PropertyValue
      value: 0.107
    additional property: Acousticness
      type: PropertyValue
      value: 0.143
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.369
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.542
    additional property: Loudness (dB)
      type: PropertyValue
      value: -1.567
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Cinderella Complex - Remixed by Yunosuke
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175908
  explicit: false
  by artist: samayuzame
  in album: butcher knife
    type: MusicAlbum
    date published: 2024-09-25
  genre: japanese indie
  isrc code: TCJPB2481231
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-19T07:32:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x610c54fd2bf936e187ec11bafe0d3b11d915752a83b1a0cf51658199528afe29
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958696
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958696
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2481231
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T07:45:31Z
  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
  subject of: OpenTimestamps Proof of Existence
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