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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-19T03:22:39Z
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track: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 3: Danse des ombres heureuses (Lent)
track: Gluck: Orphée et Eurydice, Wq. 41, Act 3 Scene 3: Choeur général, "L'amour triomphe, et tout ce qui respire" (Orphée, Eurydice, L'Amour, Nymphes, Bergers)
track: Gluck: Orphée et Eurydice, Wq. 41, Act 1 Scene 1: Choeur, "Ah! dans ce bois tranquille et sombre" (Nymphes, Bergers)
track: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: Choeur, "Quel est l'audacieux … Que la peur, la terreur" (Spectres, Furies, Démons)
track: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: Air, "Laissez-vous toucher par mes pleurs" (Orphée, Spectres, Furies, Démons) - Choeur en rondeau, "Qui t'amène en ces lieux" (Orphée, Spectr
track: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: "La tendresse qui me presse calmera votre fureur … Quels chants doux et touchants!" (Orphée, Spectres, Furies, Démons)
track: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 2: Ballet des ombres heureuses, 1. Lent, très doux - Même mouvement - Tempo primo
track: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 4: Choeur, "Près du tendre objet qu'on aime" (Ombres heureuses)

Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 3: Danse des ombres heureuses (Lent)
type: MusicRecording
duration: PT1M54S
duration ms: 114733
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by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
isrc code: FRZ118901220
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additional property: OTSTimestamp
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 3: Danse des ombres heureuses (Lent)
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Gluck: Orphée et Eurydice, Wq. 41, Act 3 Scene 3: Choeur général, "L'amour triomphe, et tout ce qui respire" (Orphée, Eurydice, L'Amour, Nymphes, Bergers)
type: MusicRecording
duration: PT2M27S
duration ms: 147506
explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
isrc code: FRZ118901340
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 3 Scene 3: Choeur général, "L'amour triomphe, et tout ce qui respire" (Orphée, Eurydice, L'Amour, Nymphes, Bergers)
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Gluck: Orphée et Eurydice, Wq. 41, Act 1 Scene 1: Choeur, "Ah! dans ce bois tranquille et sombre" (Nymphes, Bergers)
type: MusicRecording
duration: PT1M24S
duration ms: 84466
explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa7a56702a54bd42faaea08ab8f91cf023b6381f88a05cd7eab7aee8d45ccdb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRZ118900960.
  date published: 2026-07-30T17:23:26Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 1 Scene 1: Choeur, "Ah! dans ce bois tranquille et sombre" (Nymphes, Bergers)
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isrc code: FRZ118900960
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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

Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: Choeur, "Quel est l'audacieux … Que la peur, la terreur" (Spectres, Furies, Démons)
type: MusicRecording
duration: PT1M0S
duration ms: 60133
explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T05:17:02Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: Choeur, "Quel est l'audacieux … Que la peur, la terreur" (Spectres, Furies, Démons)
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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

Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: Air, "Laissez-vous toucher par mes pleurs" (Orphée, Spectres, Furies, Démons) - Choeur en rondeau, "Qui t'amène en ces lieux" (Orphée, Spectr
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explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: Air, "Laissez-vous toucher par mes pleurs" (Orphée, Spectres, Furies, Démons) - Choeur en rondeau, "Qui t'amène en ces lieux" (Orphée, Spectr
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54+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

Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: "La tendresse qui me presse calmera votre fureur … Quels chants doux et touchants!" (Orphée, Spectres, Furies, Démons)
type: MusicRecording
duration: PT1M41S
duration ms: 101320
explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4547455b4133b638e9a7e04706dfd90dad83859cd9e70d2e9e1564038e1fbc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRZ118901150.
  date published: 2026-07-31T02:19:15Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 1: "La tendresse qui me presse calmera votre fureur … Quels chants doux et touchants!" (Orphée, Spectres, Furies, Démons)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.681
  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: 0.273
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.216
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.34
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ118901150
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: 960334
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:19:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118901150
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15+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

Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 2: Ballet des ombres heureuses, 1. Lent, très doux - Même mouvement - Tempo primo
type: MusicRecording
duration: PT5M29S
duration ms: 329026
explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6286620f21786f4dc385fd0b5e644b5fc348247c285cc645dcbb647c316e153d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FRZ118901170.
  date published: 2026-07-31T00:26:26Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 2: Ballet des ombres heureuses, 1. Lent, très doux - Même mouvement - Tempo primo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.628
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.144
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.918
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.318
  additional property: Liveness
    type: PropertyValue
    value: 0.235
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.124
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.608
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ118901170
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: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118901170
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+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

Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 4: Choeur, "Près du tendre objet qu'on aime" (Ombres heureuses)
type: MusicRecording
duration: PT2M31S
duration ms: 151040
explicit: false
by artist: Christoph Willibald Gluck
by artist: Monteverdi Choir/Orchestre de l'Opéra National de Lyon/Sir John Eliot Gardiner
by artist: John Eliot Gardiner
by artist: Orchestre De L'Opéra National De Lyon
in album: Gluck: Orphée et Euridice
  type: MusicAlbum
  date published: 1989
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85ea19dca14db9971f23b365a90bb832f3eaa71234f8f25a78dca8d40a1a5f7. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/FRZ118901240.
  date published: 2026-07-31T09:50:37Z
audio: Gluck: Orphée et Eurydice, Wq. 41, Act 2 Scene 4: Choeur, "Près du tendre objet qu'on aime" (Ombres heureuses)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.053
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.14
  additional property: Energy
    type: PropertyValue
    value: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.794
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.08
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.89
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ118901240
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: 960383
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T09:50:37+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118901240
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960383
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960383
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:50:37+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