The Classical Jazz Quartet
type: MusicGroup
genre: jazz
popularity: 16
followers: 5650
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeac23d2dd06129d18647fe5c98373857f90f75068805941896f636687f0b1f6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41964aa7-f192-444a-bcde-249963e00193.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41964aa7-f192-444a-bcde-249963e00193.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41964aa7-f192-444a-bcde-249963e00193
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeac23d2dd06129d18647fe5c98373857f90f75068805941896f636687f0b1f6c","name":"The Classical Jazz Quartet","registered_at":"2026-06-14T11:18:08Z","symbol":"NIM0436244","token_address":"0xfefff2fb17c11d95d1d1408f1e59305019e763b8","type":"artist","uuid":"41964aa7-f192-444a-bcde-249963e00193"}
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 0xeac23d2dd06129d18647fe5c98373857f90f75068805941896f636687f0b1f6c. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41964aa7-f192-444a-bcde-249963e00193.json and https://artists.proofprofile.net/proofs/artist/41964aa7-f192-444a-bcde-249963e00193.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T14:31:42Z
  text: {"copyright_id":"0xeac23d2dd06129d18647fe5c98373857f90f75068805941896f636687f0b1f6c","name":"The Classical Jazz Quartet","registered_at":"2026-06-14T11:18:08Z","symbol":"NIM0436244","token_address":"0xfefff2fb17c11d95d1d1408f1e59305019e763b8","type":"artist","uuid":"41964aa7-f192-444a-bcde-249963e00193"}
album: The Silence Screams
  type: MusicAlbum
  date published: 2024-03-01