Choeur des Musiciens du Louvre
type: MusicGroup
genre: opera
popularity: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5fbbfabc9eaa705d014681f244a5d9b9d9cb3203f569f88d20d46afd3210723
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953662
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953662
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/550772e5-e4b4-42a7-a84c-31d4613bcc1a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/550772e5-e4b4-42a7-a84c-31d4613bcc1a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/550772e5-e4b4-42a7-a84c-31d4613bcc1a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:28:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5fbbfabc9eaa705d014681f244a5d9b9d9cb3203f569f88d20d46afd3210723","name":"Choeur des Musiciens du Louvre","registered_at":"2026-06-14T13:28:09Z","symbol":"NIM0467267","token_address":"0x3d5a85913129073b425e300916a19d0baac51a03","type":"artist","uuid":"550772e5-e4b4-42a7-a84c-31d4613bcc1a"}
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 0xc5fbbfabc9eaa705d014681f244a5d9b9d9cb3203f569f88d20d46afd3210723. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/550772e5-e4b4-42a7-a84c-31d4613bcc1a.json and https://artists.proofprofile.net/proofs/artist/550772e5-e4b4-42a7-a84c-31d4613bcc1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:28:39Z
  text: {"copyright_id":"0xc5fbbfabc9eaa705d014681f244a5d9b9d9cb3203f569f88d20d46afd3210723","name":"Choeur des Musiciens du Louvre","registered_at":"2026-06-14T13:28:09Z","symbol":"NIM0467267","token_address":"0x3d5a85913129073b425e300916a19d0baac51a03","type":"artist","uuid":"550772e5-e4b4-42a7-a84c-31d4613bcc1a"}