Sébastien Clément
type: MusicGroup
popularity: 19
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfadcd29b5515623e1288764e38282b16301e61cbcd96fb2d1e39721785c8c7a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dd604ed-257c-492b-81bd-dc4677406298.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dd604ed-257c-492b-81bd-dc4677406298.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dd604ed-257c-492b-81bd-dc4677406298
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfadcd29b5515623e1288764e38282b16301e61cbcd96fb2d1e39721785c8c7a1","name":"Sébastien Clément","registered_at":"2026-06-14T17:44:39Z","symbol":"NIM0528484","token_address":"0x2269a56ea6bab5778645a58ff86dc23cb3ac0efc","type":"artist","uuid":"7dd604ed-257c-492b-81bd-dc4677406298"}
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 0xfadcd29b5515623e1288764e38282b16301e61cbcd96fb2d1e39721785c8c7a1. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dd604ed-257c-492b-81bd-dc4677406298.json and https://artists.proofprofile.net/proofs/artist/7dd604ed-257c-492b-81bd-dc4677406298.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xfadcd29b5515623e1288764e38282b16301e61cbcd96fb2d1e39721785c8c7a1","name":"Sébastien Clément","registered_at":"2026-06-14T17:44:39Z","symbol":"NIM0528484","token_address":"0x2269a56ea6bab5778645a58ff86dc23cb3ac0efc","type":"artist","uuid":"7dd604ed-257c-492b-81bd-dc4677406298"}
album: Douce mélancolie
  type: MusicAlbum
  date published: 2024-08-17