Groupe Vocal Claire Caillard-Hayward
type: MusicGroup
genre: medieval
popularity: 3
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcae12d359f5229720590ca1d70dc3ec4027b674d264fd70649011690595c1fa5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb84d6a4-68fa-457d-8c0b-39cfad514c4e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb84d6a4-68fa-457d-8c0b-39cfad514c4e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb84d6a4-68fa-457d-8c0b-39cfad514c4e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcae12d359f5229720590ca1d70dc3ec4027b674d264fd70649011690595c1fa5","name":"Groupe Vocal Claire Caillard-Hayward","registered_at":"2026-06-20T23:12:16Z","symbol":"NIM1745182","token_address":"0x0193acbcc40b138c36a053305b53e169f26053ee","type":"artist","uuid":"cb84d6a4-68fa-457d-8c0b-39cfad514c4e"}
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 0xcae12d359f5229720590ca1d70dc3ec4027b674d264fd70649011690595c1fa5. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb84d6a4-68fa-457d-8c0b-39cfad514c4e.json and https://artists.proofprofile.net/proofs/artist/cb84d6a4-68fa-457d-8c0b-39cfad514c4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xcae12d359f5229720590ca1d70dc3ec4027b674d264fd70649011690595c1fa5","name":"Groupe Vocal Claire Caillard-Hayward","registered_at":"2026-06-20T23:12:16Z","symbol":"NIM1745182","token_address":"0x0193acbcc40b138c36a053305b53e169f26053ee","type":"artist","uuid":"cb84d6a4-68fa-457d-8c0b-39cfad514c4e"}