Jean-Philippe Crespin
type: MusicGroup
genre: french jazz
genre: vocal jazz
popularity: 6
followers: 184
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe03f815d76c2b9cfaff54562658ccdc1aecadd37a9cff7133e1f269036216920
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b66666e-371e-4081-a5dd-7da80562a7ee.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b66666e-371e-4081-a5dd-7da80562a7ee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b66666e-371e-4081-a5dd-7da80562a7ee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe03f815d76c2b9cfaff54562658ccdc1aecadd37a9cff7133e1f269036216920","name":"Jean-Philippe Crespin","registered_at":"2026-06-17T08:37:14Z","symbol":"NIM1340442","token_address":"0xd45e01b32625feeffa70970f115c3860cf875ae8","type":"artist","uuid":"7b66666e-371e-4081-a5dd-7da80562a7ee"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03f815d76c2b9cfaff54562658ccdc1aecadd37a9cff7133e1f269036216920. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b66666e-371e-4081-a5dd-7da80562a7ee.json and https://artists.proofprofile.net/proofs/artist/7b66666e-371e-4081-a5dd-7da80562a7ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0xe03f815d76c2b9cfaff54562658ccdc1aecadd37a9cff7133e1f269036216920","name":"Jean-Philippe Crespin","registered_at":"2026-06-17T08:37:14Z","symbol":"NIM1340442","token_address":"0xd45e01b32625feeffa70970f115c3860cf875ae8","type":"artist","uuid":"7b66666e-371e-4081-a5dd-7da80562a7ee"}
album: Argent et Inox s'échappent du tiroir
  type: MusicAlbum
  date published: 2021-06-04