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genre: chamber music
genre: classical
popularity: 12
followers: 307
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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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album: Wolfgang Amadeus Mozart, Vol. 1-7
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  date published: 2014-11-23
album: Felix Mendelssohn: Symphonies, Vol. 1
  type: MusicAlbum
  date published: 2019-01-23
album: Mozart: Chamber Works Vol. 24
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  date published: 2019-02-21
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      date published: 2019-02-21
    genre: chamber music
    genre: classical
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    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21993feaeb8b309ef76634277fcd644352dd3fceba1add0b10213e41c8641a5. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:31:58Z), 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/CACWV1969229.
      date published: 2026-07-21T11:31:58Z
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-06T01:25:57Z
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album: Mozart: Chamber Works, Vol. 41
album: Mozart: Chamber Works, Vol. 40

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Mode Name
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String Quartet No.6 in B flat, KV.159 I.Andante
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genre: chamber music
genre: classical
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-05T19:27:56Z
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Mozart: Chamber Works, Vol. 41
type: MusicAlbum
date published: 2019-02-27

Mozart: Chamber Works, Vol. 40
type: MusicAlbum
date published: 2019-02-27