Banda de Cornetas y Tambores Nuestra Señora del Rosario "Catalinos"
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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: 2026-06-20T19:15:05Z
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album: A La Verdad (En Directo 2025)
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  date published: 2023-05-07
album: A La Verdad
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  date published: 2023-05-08
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      type: MusicAlbum
      date published: 2023-05-08
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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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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33444487c1dce7d8078f0839b8f3b9352d2a1e875fcade3f369720d5ad45be68. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/TCAHA2345086.
      date published: 2026-07-05T05:07:15Z
    audio: A La Verdad
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      additional property: Liveness
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      additional property: Loudness (dB)
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album: A La Verdad (Piano)
  type: MusicAlbum
  date published: 2023-05-08
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  type: MusicAlbum
  date published: 2023-11-27
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  type: MusicAlbum
  date published: 2023-11-27
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  type: MusicAlbum
  date published: 2024-07-12
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-03-27
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  type: MusicAlbum
  date published: 2025-03-27
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  type: MusicAlbum
  date published: 2025-03-27