Séraphine Crépin
type: MusicGroup
popularity: 9
followers: 92
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd64acce6fd05de0b96b86efba1bfa9d797911892999018e2ed7cccef225fd3a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a064f32c-c92f-42fb-8879-603ad7c25a80.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a064f32c-c92f-42fb-8879-603ad7c25a80.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a064f32c-c92f-42fb-8879-603ad7c25a80
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd64acce6fd05de0b96b86efba1bfa9d797911892999018e2ed7cccef225fd3a","name":"Séraphine Crépin","registered_at":"2026-06-20T05:36:49Z","symbol":"NIM1527579","token_address":"0x2f53dcb93abc4d662521c8f3733adaff78122854","type":"artist","uuid":"a064f32c-c92f-42fb-8879-603ad7c25a80"}
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 0xfd64acce6fd05de0b96b86efba1bfa9d797911892999018e2ed7cccef225fd3a. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a064f32c-c92f-42fb-8879-603ad7c25a80.json and https://artists.proofprofile.net/proofs/artist/a064f32c-c92f-42fb-8879-603ad7c25a80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xfd64acce6fd05de0b96b86efba1bfa9d797911892999018e2ed7cccef225fd3a","name":"Séraphine Crépin","registered_at":"2026-06-20T05:36:49Z","symbol":"NIM1527579","token_address":"0x2f53dcb93abc4d662521c8f3733adaff78122854","type":"artist","uuid":"a064f32c-c92f-42fb-8879-603ad7c25a80"}
album: Le minuit glacé
  type: MusicAlbum
  date published: 2022-01-14