Didier Levallet
type: MusicGroup
genre: french jazz
genre: jazz fusion
description: Didier Levallet (born 19 July 1944, in Arcy-sur-Cure, France) is a French jazz double bassist, composer, arranger and leader. A self-taught bassist, Levallet made his professional debut in Paris in 1
popularity: 2
followers: 64
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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: Eurydice
  type: MusicAlbum
  date published: 2003
album: Contes jazz et zizanie
  type: MusicAlbum
  date published: 2001-10-15
album: Swing Strings System
  type: MusicAlbum
  date published: 1978
  track: Paysages intimes: Journal
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    by artist: Didier Levallet
    by artist: Bernard Lubat
    by artist: Christian Escoudé
    in album: Swing Strings System
      type: MusicAlbum
      date published: 1978
    genre: jazz-fusion
    genre: french-jazz
    isrc code: FRX197811225
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T13:04:34Z
    audio: Paysages intimes: Journal
      type: AudioObject
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album: Under Paris Skies
  type: MusicAlbum
  date published: 1971-06-26
  track: Diane I Love You
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    by artist: Freddie Redd
    by artist: Didier Levallet
    by artist: Didier Carlier
    in album: Under Paris Skies
      type: MusicAlbum
      date published: 1971-06-26
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T17:29:52Z
    audio: Diane I Love You
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  track: You
  track: My God is Love
album: Tricks of the Trade
album: Perception
album: Re/Rectangle : Winds

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You
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duration: PT8M52S
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by artist: Freddie Redd
by artist: Didier Levallet
by artist: Didier Carlier
in album: Under Paris Skies
  type: MusicAlbum
  date published: 1971-06-26
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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 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
audio: You
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My God is Love
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by artist: Freddie Redd
by artist: Didier Levallet
by artist: Didier Carlier
in album: Under Paris Skies
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  date published: 1971-06-26
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: My God is Love
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Tricks of the Trade
type: MusicAlbum
date published: 1977-01-01

Perception
type: MusicAlbum
date published: 1971-09-30

Re/Rectangle : Winds
type: MusicAlbum
date published: 2011-09-02