Jean-Noël Haddad
type: MusicGroup
genre: gregorian chant
genre: medieval
popularity: 3
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a0caa542f53a52c2b9d7ca014207e977d64802d27acf2e7e5bfe8661c419484
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94e1963f-3b13-470c-bd97-ccf565384ed7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94e1963f-3b13-470c-bd97-ccf565384ed7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/94e1963f-3b13-470c-bd97-ccf565384ed7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a0caa542f53a52c2b9d7ca014207e977d64802d27acf2e7e5bfe8661c419484","name":"Jean-Noël Haddad","registered_at":"2026-06-17T17:22:42Z","symbol":"NIM1465730","token_address":"0xe5a8e4f99780c36be8c3cbe7136b9fd491962ec0","type":"artist","uuid":"94e1963f-3b13-470c-bd97-ccf565384ed7"}
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 0x8a0caa542f53a52c2b9d7ca014207e977d64802d27acf2e7e5bfe8661c419484. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94e1963f-3b13-470c-bd97-ccf565384ed7.json and https://artists.proofprofile.net/proofs/artist/94e1963f-3b13-470c-bd97-ccf565384ed7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x8a0caa542f53a52c2b9d7ca014207e977d64802d27acf2e7e5bfe8661c419484","name":"Jean-Noël Haddad","registered_at":"2026-06-17T17:22:42Z","symbol":"NIM1465730","token_address":"0xe5a8e4f99780c36be8c3cbe7136b9fd491962ec0","type":"artist","uuid":"94e1963f-3b13-470c-bd97-ccf565384ed7"}