Thomas Hellman
type: MusicGroup
genre: chanson
description: Thomas Hellman (born 1975) is a Canadian singer, songwriter, radio columnist, and author. Born to an American father and a French mother, he sings both in French and English. Music and writing Hellma
popularity: 9
followers: 713
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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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  date published: 2026-06-16T20:04:35Z
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album: Mythomane
  type: MusicAlbum
  date published: 2024-01-12
album: Rêves Américains - tome 2 : La grande crise
  type: MusicAlbum
  date published: 2019-03-22
album: Rêves américains Tome 1 : La ruée vers l'or
  type: MusicAlbum
  date published: 2015-09-18
album: Thomas Hellman chante Roland Giguère
  type: MusicAlbum
  date published: 2012-11-20
album: L’appartement
  type: MusicAlbum
  date published: 2005-08-30
  track: L'Admirateur secret
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    by artist: Thomas Hellman
    in album: L’appartement
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      date published: 2005-08-30
    popularity: 8
    genre: auteur-compositeur-interprete-quebecois
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    additional property: OTSVerificationAPI
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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: 2026-07-22T15:38:35Z
    audio: L'Admirateur secret
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