Frank Jeffries Unplugged
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  date published: 2025-03-27
  track: Piano Man
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    by artist: Frank Jeffries Unplugged
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    genre: neoclassical
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    subject of: OpenTimestamps Proof of Existence
    audio: Piano Man
album: Huckleberries Song
album: Transitions
album: Stoney Creek
album: I Still Miss Someone

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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

OpenTimestamps Proof of Existence
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date published: 2026-07-04T14:03:39Z

Piano Man
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Huckleberries Song
type: MusicAlbum
date published: 2025-04-09

Transitions
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date published: 2025-04-21

Stoney Creek
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date published: 2025-05-09

I Still Miss Someone
type: MusicAlbum
date published: 2025-05-13