OPUS 216
type: MusicGroup
genre: neoclassical
popularity: 5
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5f95c14227f9ad9febf2d13959f1a1ebec63ea8c388e746d2cb9e34e945d840
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc552488-3f8b-4c54-8c46-20f0d34e61d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc552488-3f8b-4c54-8c46-20f0d34e61d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dc552488-3f8b-4c54-8c46-20f0d34e61d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb5f95c14227f9ad9febf2d13959f1a1ebec63ea8c388e746d2cb9e34e945d840","name":"OPUS 216","registered_at":"2026-06-21T05:04:09Z","symbol":"NIM1828237","token_address":"0x0fdd5282d5824270d6ef896243225d3c629bd9f0","type":"artist","uuid":"dc552488-3f8b-4c54-8c46-20f0d34e61d4"}
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 0xb5f95c14227f9ad9febf2d13959f1a1ebec63ea8c388e746d2cb9e34e945d840. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc552488-3f8b-4c54-8c46-20f0d34e61d4.json and https://artists.proofprofile.net/proofs/artist/dc552488-3f8b-4c54-8c46-20f0d34e61d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xb5f95c14227f9ad9febf2d13959f1a1ebec63ea8c388e746d2cb9e34e945d840","name":"OPUS 216","registered_at":"2026-06-21T05:04:09Z","symbol":"NIM1828237","token_address":"0x0fdd5282d5824270d6ef896243225d3c629bd9f0","type":"artist","uuid":"dc552488-3f8b-4c54-8c46-20f0d34e61d4"}
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