Quentin Duval
type: MusicGroup
popularity: 3
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2b028a5e077c2173e2f009ae711c6691f6d59eb4cd693c0bc5658570e0a8d1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31b3de33-077f-4489-af07-ef33ca05c30e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31b3de33-077f-4489-af07-ef33ca05c30e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31b3de33-077f-4489-af07-ef33ca05c30e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2b028a5e077c2173e2f009ae711c6691f6d59eb4cd693c0bc5658570e0a8d1a","name":"Quentin Duval","registered_at":"2026-06-16T06:52:06Z","symbol":"NIM0971798","token_address":"0x27a5fb7f3d643c8e548ebcc1070d3c368c9a5f59","type":"artist","uuid":"31b3de33-077f-4489-af07-ef33ca05c30e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b028a5e077c2173e2f009ae711c6691f6d59eb4cd693c0bc5658570e0a8d1a. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31b3de33-077f-4489-af07-ef33ca05c30e.json and https://artists.proofprofile.net/proofs/artist/31b3de33-077f-4489-af07-ef33ca05c30e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xd2b028a5e077c2173e2f009ae711c6691f6d59eb4cd693c0bc5658570e0a8d1a","name":"Quentin Duval","registered_at":"2026-06-16T06:52:06Z","symbol":"NIM0971798","token_address":"0x27a5fb7f3d643c8e548ebcc1070d3c368c9a5f59","type":"artist","uuid":"31b3de33-077f-4489-af07-ef33ca05c30e"}
album: Un message reçu
  type: MusicAlbum
  date published: 2025-04-02