Grupo Vocal Nuba
type: MusicGroup
genre: medieval
popularity: 4
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa456604c82e25ead006e4af0c2983279a65c83a56f63d86890adb7993c564765
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/940a0e9d-0d42-41a5-a43e-0845912f662b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/940a0e9d-0d42-41a5-a43e-0845912f662b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/940a0e9d-0d42-41a5-a43e-0845912f662b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa456604c82e25ead006e4af0c2983279a65c83a56f63d86890adb7993c564765","name":"Grupo Vocal Nuba","registered_at":"2026-06-17T17:18:34Z","symbol":"NIM1464741","token_address":"0xb1c44d193c554170ff572b78989ffe6afc0cfa1f","type":"artist","uuid":"940a0e9d-0d42-41a5-a43e-0845912f662b"}
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 0xa456604c82e25ead006e4af0c2983279a65c83a56f63d86890adb7993c564765. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/940a0e9d-0d42-41a5-a43e-0845912f662b.json and https://artists.proofprofile.net/proofs/artist/940a0e9d-0d42-41a5-a43e-0845912f662b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xa456604c82e25ead006e4af0c2983279a65c83a56f63d86890adb7993c564765","name":"Grupo Vocal Nuba","registered_at":"2026-06-17T17:18:34Z","symbol":"NIM1464741","token_address":"0xb1c44d193c554170ff572b78989ffe6afc0cfa1f","type":"artist","uuid":"940a0e9d-0d42-41a5-a43e-0845912f662b"}
album: Aliénor (Música en la corte de Leonor de Aquitania / Music at the Court of Eleanor of Aquitaine)
  type: MusicAlbum
  date published: 2014-02-02
album: Aliénor (Música en la corte de Leonor de Aquitania / Music at the Court of Eleanor of Aquitaine)
  type: MusicAlbum
  date published: 2014-02-24
album: Aliénor
  type: MusicAlbum
  date published: 2014-04-09
album: Adio, Kerida (Canciones Sefardíes - Sephardic Songs)
  type: MusicAlbum
  date published: 2023-01-27