Mabon Clarke Quartet
type: MusicGroup
genre: jazz
popularity: 41
followers: 600
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-12T19:24:56Z
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album: French books
  type: MusicAlbum
  date published: 2024-03-29
  track: French books

French books
type: MusicRecording
duration: PT3M17S
duration ms: 197279
explicit: false
by artist: Mabon Clarke Quartet
in album: French books
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  date published: 2024-03-29
popularity: 44
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: French books
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Loudness (dB)
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  additional property: Key Name
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    value: F#
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