Maestro Duda
type: MusicGroup
genre: gregorian chant
popularity: 10
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7784762949655c7cf636730c027baf81a570a29913ec7c7bf80274be2787f91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c266b4bf-44b9-47b8-a9fd-840d8f2e64c1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c266b4bf-44b9-47b8-a9fd-840d8f2e64c1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c266b4bf-44b9-47b8-a9fd-840d8f2e64c1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7784762949655c7cf636730c027baf81a570a29913ec7c7bf80274be2787f91","name":"Maestro Duda","registered_at":"2026-06-20T19:35:26Z","symbol":"NIM1696347","token_address":"0x287a9a30a5efa998f2f8246af802c7bf1a6d1336","type":"artist","uuid":"c266b4bf-44b9-47b8-a9fd-840d8f2e64c1"}
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 0xd7784762949655c7cf636730c027baf81a570a29913ec7c7bf80274be2787f91. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c266b4bf-44b9-47b8-a9fd-840d8f2e64c1.json and https://artists.proofprofile.net/proofs/artist/c266b4bf-44b9-47b8-a9fd-840d8f2e64c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xd7784762949655c7cf636730c027baf81a570a29913ec7c7bf80274be2787f91","name":"Maestro Duda","registered_at":"2026-06-20T19:35:26Z","symbol":"NIM1696347","token_address":"0x287a9a30a5efa998f2f8246af802c7bf1a6d1336","type":"artist","uuid":"c266b4bf-44b9-47b8-a9fd-840d8f2e64c1"}