Lucien Casgrain
type: MusicGroup
popularity: 2
followers: 267
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24632085b867de8de0fb39ae11bb22e30cd1c0a292288b1f7db1af213f58bc7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954125
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954125
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b93bf4c-6a8d-4208-9d91-466e1f2260f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b93bf4c-6a8d-4208-9d91-466e1f2260f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b93bf4c-6a8d-4208-9d91-466e1f2260f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:27:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x24632085b867de8de0fb39ae11bb22e30cd1c0a292288b1f7db1af213f58bc7f","name":"Lucien Casgrain","registered_at":"2026-06-17T08:45:10Z","symbol":"NIM1342338","token_address":"0xe91ccb8a725c27736f519eb3859074a98453b255","type":"artist","uuid":"7b93bf4c-6a8d-4208-9d91-466e1f2260f7"}
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 0x24632085b867de8de0fb39ae11bb22e30cd1c0a292288b1f7db1af213f58bc7f. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b93bf4c-6a8d-4208-9d91-466e1f2260f7.json and https://artists.proofprofile.net/proofs/artist/7b93bf4c-6a8d-4208-9d91-466e1f2260f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T18:27:28Z
  text: {"copyright_id":"0x24632085b867de8de0fb39ae11bb22e30cd1c0a292288b1f7db1af213f58bc7f","name":"Lucien Casgrain","registered_at":"2026-06-17T08:45:10Z","symbol":"NIM1342338","token_address":"0xe91ccb8a725c27736f519eb3859074a98453b255","type":"artist","uuid":"7b93bf4c-6a8d-4208-9d91-466e1f2260f7"}
album: Mes nouveaux succès souvenirs
  type: MusicAlbum
  date published: 2021-12-01