Anna Torroja
type: MusicGroup
popularity: 27
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcaaac1f2b6e118a3a4446a8f4ba1311e3269d6c2eca0cbfb33545c4ce50b0677
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953423
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d370d142-f0c5-4083-a0f5-c6b2083554b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d370d142-f0c5-4083-a0f5-c6b2083554b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d370d142-f0c5-4083-a0f5-c6b2083554b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcaaac1f2b6e118a3a4446a8f4ba1311e3269d6c2eca0cbfb33545c4ce50b0677","name":"Anna Torroja","registered_at":"2026-06-12T10:40:28Z","symbol":"NIM0272849","token_address":"0x9b427a82b11ba23c35b52f8cfdcad52f2eacc082","type":"artist","uuid":"d370d142-f0c5-4083-a0f5-c6b2083554b4"}
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 0xcaaac1f2b6e118a3a4446a8f4ba1311e3269d6c2eca0cbfb33545c4ce50b0677. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d370d142-f0c5-4083-a0f5-c6b2083554b4.json and https://artists.proofprofile.net/proofs/artist/d370d142-f0c5-4083-a0f5-c6b2083554b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xcaaac1f2b6e118a3a4446a8f4ba1311e3269d6c2eca0cbfb33545c4ce50b0677","name":"Anna Torroja","registered_at":"2026-06-12T10:40:28Z","symbol":"NIM0272849","token_address":"0x9b427a82b11ba23c35b52f8cfdcad52f2eacc082","type":"artist","uuid":"d370d142-f0c5-4083-a0f5-c6b2083554b4"}