Les enfants de l'Alumnat
type: MusicGroup
genre: gregorian chant
popularity: 2
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbbc67adf49a80fda9f7e8173d2e6a9e58e2fc366b46ce26d2a5c09d4197bb79
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/153ce554-54d9-4766-9301-d97ce5bf10f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/153ce554-54d9-4766-9301-d97ce5bf10f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/153ce554-54d9-4766-9301-d97ce5bf10f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcbbc67adf49a80fda9f7e8173d2e6a9e58e2fc366b46ce26d2a5c09d4197bb79","name":"Les enfants de l'Alumnat","registered_at":"2026-06-15T21:00:23Z","symbol":"NIM0830507","token_address":"0xb87bb5094c9694c2fdc76ad32d9faf315a742d09","type":"artist","uuid":"153ce554-54d9-4766-9301-d97ce5bf10f0"}
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 0xcbbc67adf49a80fda9f7e8173d2e6a9e58e2fc366b46ce26d2a5c09d4197bb79. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/153ce554-54d9-4766-9301-d97ce5bf10f0.json and https://artists.proofprofile.net/proofs/artist/153ce554-54d9-4766-9301-d97ce5bf10f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xcbbc67adf49a80fda9f7e8173d2e6a9e58e2fc366b46ce26d2a5c09d4197bb79","name":"Les enfants de l'Alumnat","registered_at":"2026-06-15T21:00:23Z","symbol":"NIM0830507","token_address":"0xb87bb5094c9694c2fdc76ad32d9faf315a742d09","type":"artist","uuid":"153ce554-54d9-4766-9301-d97ce5bf10f0"}