Jean-Michel Vaubien
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description: Jean-Michel Vaubien, is a French singer and actor. Biography Jean-Michel studies dancing and acting at the International Academy of Dance in Paris. He plays in several musicals : Fame, Avenue Q, D.
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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
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track: L'explorateur
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  by artist: Jean-Michel Vaubien
  by artist: Opetaia Foa'i
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:47:07Z
  audio: L'explorateur
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track: L'explorateur - Final
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  by artist: Opetaia Foa'i
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:53:06Z
  audio: L'explorateur - Final
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track: Il faut des copains

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Il faut des copains
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by artist: Gwendal Marimoutou
by artist: Aurélie Konaté
by artist: Alexis Tomassian
by artist: Jean-Michel Vaubien
in album: Mufasa : Le Roi Lion (Bande Originale Française du Film)
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  date published: 2024-12-13
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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: 2026-06-13T12:47:07Z
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