Grupo Afrocuba de Matanzas
type: MusicGroup
genre: latin folk
genre: latin jazz
genre: son cubano
genre: timba
popularity: 4
followers: 2880
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbca5ae461f72ab2b8591be38db9479ad008c463612fdabb613619859b46b43e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/257dd46d-6fc2-4082-af8b-7414ecaf6abb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/257dd46d-6fc2-4082-af8b-7414ecaf6abb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/257dd46d-6fc2-4082-af8b-7414ecaf6abb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbca5ae461f72ab2b8591be38db9479ad008c463612fdabb613619859b46b43e2","name":"Grupo Afrocuba de Matanzas","registered_at":"2026-06-16T02:36:54Z","symbol":"NIM0910844","token_address":"0x59171d9e4c2336e34306fe1cf67ac28cc7b07381","type":"artist","uuid":"257dd46d-6fc2-4082-af8b-7414ecaf6abb"}
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 0xbca5ae461f72ab2b8591be38db9479ad008c463612fdabb613619859b46b43e2. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/257dd46d-6fc2-4082-af8b-7414ecaf6abb.json and https://artists.proofprofile.net/proofs/artist/257dd46d-6fc2-4082-af8b-7414ecaf6abb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:18:37Z
  text: {"copyright_id":"0xbca5ae461f72ab2b8591be38db9479ad008c463612fdabb613619859b46b43e2","name":"Grupo Afrocuba de Matanzas","registered_at":"2026-06-16T02:36:54Z","symbol":"NIM0910844","token_address":"0x59171d9e4c2336e34306fe1cf67ac28cc7b07381","type":"artist","uuid":"257dd46d-6fc2-4082-af8b-7414ecaf6abb"}
album: Rituales afrocubanos (Remasterizado)
  type: MusicAlbum
  date published: 1993-01-01
album: The Suite Abakuá
  type: MusicAlbum
  date published: 2017-05-12