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genre: chamber music
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followers: 323
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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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album: Mozart: Clarinet Quintet in A; Schubert: Piano Quintet in A - "Trout"
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  date published: 2013-01-01
track: Elgar: Introduction and Allegro, Op. 47: I. Moderato
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  by artist: Allegri String Quartet
  by artist: Sinfonia Of London
  in album: Glorious John Barbirolli
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    date published: 2025-02-05
  popularity: 9
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  genre: late-romantic-era
  genre: british-modern-classical
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
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track: Elgar: Introduction and Allegro, Op. 47: II. Allegro
track: Elgar: Introduction and Allegro, Op. 47: III. Fugue. Allegro

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Elgar: Introduction and Allegro, Op. 47: II. Allegro
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by artist: Sir John Barbirolli
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by artist: Sinfonia Of London
in album: Elgar: Cello Concerto, Enigma Variations, Symphonies, Sea Pictures, The Dream of Gerontius...
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  date published: 2022-03-25
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:58:21Z
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Elgar: Introduction and Allegro, Op. 47: III. Fugue. Allegro
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  date published: 2022-03-25
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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
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