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followers: 45
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. 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
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  date published: 2022-06-10
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    by artist: Herbert Downes
    by artist: Ronald Kinloch Anderson
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      date published: 2022-06-10
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    genre: opera
    genre: early-music
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T00:26:26Z
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  track: Vaughan Williams / Arr. Forbes: Fantasia on Greensleeves
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    additional property: OTSTimestamp
      type: PropertyValue
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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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      date published: 2026-07-08T03:20:19Z
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  track: Saint-Saëns: Le Carnaval des animaux: XIII. Le Cygne
track: Strauss, R: Don Quixote, Op. 35: Introduction. Don Quixote Sinks into Madness
track: Strauss, R: Don Quixote, Op. 35: Variation II. The Battle with the Sheep
track: Strauss, R: Don Quixote, Op. 35: Variation III. Discourse Between Knight and Squire
track: Strauss, R: Don Quixote, Op. 35: Variation IV. The Adventure with the Pilgrims
track: Strauss, R: Don Quixote, Op. 35: Variation VI. The Meeting with Dulcinea
track: Strauss, R: Don Quixote, Op. 35: Variation VIII. The Voyage in the Enchanted Boat
track: Strauss, R: Don Quixote, Op. 35: Variation X. The Defeat of Don Quixote

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Cui: Kaléidoscope, Op. 50: No. 9, Orientale
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duration ms: 162600
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by artist: Herbert Downes
by artist: John C. Williams
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popularity: 1
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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: 2026-07-07T14:18:56Z
audio: Cui: Kaléidoscope, Op. 50: No. 9, Orientale
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Brahms / Arr. Kreisler: 21 Hungarian Dances, WoO 1: No. 17 in F-Sharp Minor
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by artist: Herbert Downes
by artist: Gerald Moore
in album: Music for Viola - Music for Cello
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popularity: 1
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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 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: 2026-07-08T03:20:19Z
audio: Brahms / Arr. Kreisler: 21 Hungarian Dances, WoO 1: No. 17 in F-Sharp Minor
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Gounod & Bach: Ave Maria (Arr. for Viola and Organ)
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by artist: Johann Sebastian Bach
by artist: Herbert Downes
by artist: Roy Jesson
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popularity: 1
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Gounod & Bach: Ave Maria (Arr. for Viola and Organ)
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Bach, JS: Sonata for Viola da Gamba No. 2 in D Major, BWV 1028: I. Adagio
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Bach, JS: Sonata for Viola da Gamba No. 2 in D Major, BWV 1028: II. Allegro
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duration: PT2M8S
duration ms: 128425
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by artist: Johann Sebastian Bach
by artist: Jacqueline du Pré
by artist: Ronald Kinloch Anderson
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  date published: 2022-06-10
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Bach, JS: Sonata for Viola da Gamba No. 2 in D Major, BWV 1028: II. Allegro
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Saint-Saëns: Le Carnaval des animaux: XIII. Le Cygne
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duration: PT2M52S
duration ms: 172400
explicit: false
by artist: Camille Saint-Saëns
by artist: Jacqueline du Pré
by artist: Osian Ellis
in album: Music for Viola - Music for Cello
  type: MusicAlbum
  date published: 2022-06-10
popularity: 4
genre: classical
genre: late-romantic-era
genre: french-romanticism
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428dfc4238aba802bb81b42cf335a758855c2e18bdd5c475e14e03814b654db4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC2102622.
  date published: 2026-07-06T06:56:49Z
audio: Saint-Saëns: Le Carnaval des animaux: XIII. Le Cygne
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Strauss, R: Don Quixote, Op. 35: Introduction. Don Quixote Sinks into Madness
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duration: PT6M14S
duration ms: 374560
explicit: false
by artist: Richard Strauss
by artist: Jacqueline du Pré
by artist: Desmond Bradley
by artist: Herbert Downes
by artist: Adrian Boult
by artist: New Philharmonia Orchestra
in album: The Great Cello Concertos: Dvořák, Schumann, Saint-Saëns, Elgar, Haydn...
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  date published: 2024-07-10
popularity: 5
genre: classical
genre: opera
genre: orchestra
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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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 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: 2026-07-08T03:20:19Z
audio: Strauss, R: Don Quixote, Op. 35: Introduction. Don Quixote Sinks into Madness
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Strauss, R: Don Quixote, Op. 35: Variation II. The Battle with the Sheep
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duration: PT1M43S
duration ms: 103280
explicit: false
by artist: Richard Strauss
by artist: Sir Adrian Boult
by artist: Herbert Downes
by artist: New Philharmonia Orchestra
in album: The Great Cello Concertos: Dvořák, Schumann, Saint-Saëns, Elgar, Haydn...
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  date published: 2024-07-10
popularity: 4
genre: classical
genre: opera
genre: orchestra
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20efb14f887d856dc2e0be2f66173bcd10f3f5a7153351ebce251f5578d0e86b. 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/GBAYC2200220.
  date published: 2026-07-08T03:22:41Z
audio: Strauss, R: Don Quixote, Op. 35: Variation II. The Battle with the Sheep
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Strauss, R: Don Quixote, Op. 35: Variation III. Discourse Between Knight and Squire
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duration: PT8M19S
duration ms: 499533
explicit: false
by artist: Richard Strauss
by artist: Jacqueline du Pré
by artist: Herbert Downes
by artist: Sir Adrian Boult
by artist: New Philharmonia Orchestra
in album: The Great Cello Concertos: Dvořák, Schumann, Saint-Saëns, Elgar, Haydn...
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  date published: 2024-07-10
popularity: 4
genre: classical
genre: opera
genre: orchestra
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044b1e1de599a1761a3289939cf5eb676d431578d87a7620af9f55350b93cd49. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBAYC2200221.
  date published: 2026-07-31T21:25:57Z
audio: Strauss, R: Don Quixote, Op. 35: Variation III. Discourse Between Knight and Squire
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Strauss, R: Don Quixote, Op. 35: Variation IV. The Adventure with the Pilgrims
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duration ms: 111853
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by artist: Richard Strauss
by artist: Jacqueline du Pré
by artist: Herbert Downes
by artist: Sir Adrian Boult
by artist: New Philharmonia Orchestra
in album: The Great Cello Concertos: Dvořák, Schumann, Saint-Saëns, Elgar, Haydn...
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  date published: 2024-07-10
popularity: 4
genre: classical
genre: opera
genre: orchestra
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additional property: OTSVerificationAPI
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2089ccfa303d8268912a0e3fb86adc8c4f126cc3716dcbf41f798c293dda389c. 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/GBAYC2200222.
  date published: 2026-07-08T03:20:19Z
audio: Strauss, R: Don Quixote, Op. 35: Variation IV. The Adventure with the Pilgrims
  type: AudioObject
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Strauss, R: Don Quixote, Op. 35: Variation VI. The Meeting with Dulcinea
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Strauss, R: Don Quixote, Op. 35: Variation VIII. The Voyage in the Enchanted Boat
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Strauss, R: Don Quixote, Op. 35: Variation X. The Defeat of Don Quixote
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