Croatian Radio And Television Choir
type: MusicGroup
genre: opera
popularity: 2
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaa79d690318f20d1a5bd9eea2b771c8c529506eeb87f4d3bc59c83f6977d901f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ecf02a18-a26c-4ff1-a69c-759c3acfedf1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ecf02a18-a26c-4ff1-a69c-759c3acfedf1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ecf02a18-a26c-4ff1-a69c-759c3acfedf1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaa79d690318f20d1a5bd9eea2b771c8c529506eeb87f4d3bc59c83f6977d901f","name":"Croatian Radio And Television Choir","registered_at":"2026-06-21T11:07:54Z","symbol":"NIM1907285","token_address":"0xcbe489a185340ea1bf3de8992858b7779b3a0d91","type":"artist","uuid":"ecf02a18-a26c-4ff1-a69c-759c3acfedf1"}
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 0xaa79d690318f20d1a5bd9eea2b771c8c529506eeb87f4d3bc59c83f6977d901f. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecf02a18-a26c-4ff1-a69c-759c3acfedf1.json and https://artists.proofprofile.net/proofs/artist/ecf02a18-a26c-4ff1-a69c-759c3acfedf1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xaa79d690318f20d1a5bd9eea2b771c8c529506eeb87f4d3bc59c83f6977d901f","name":"Croatian Radio And Television Choir","registered_at":"2026-06-21T11:07:54Z","symbol":"NIM1907285","token_address":"0xcbe489a185340ea1bf3de8992858b7779b3a0d91","type":"artist","uuid":"ecf02a18-a26c-4ff1-a69c-759c3acfedf1"}
album: Croatian Music at Riva Dei Schiavoni
  type: MusicAlbum
  date published: 2013-07-24