El mano negra
type: MusicGroup
popularity: 2
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce919c3c23612c19b8fef76f8078a232f9e9633ddd2fb16e1f90cf7a2b3278c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6f16b5b-a228-4a48-8d39-bb79c89d63a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6f16b5b-a228-4a48-8d39-bb79c89d63a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6f16b5b-a228-4a48-8d39-bb79c89d63a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce919c3c23612c19b8fef76f8078a232f9e9633ddd2fb16e1f90cf7a2b3278c4","name":"El mano negra","registered_at":"2026-06-21T03:11:02Z","symbol":"NIM1801696","token_address":"0xc3b6e6c13d4779f2afbee25f9405fd43ed336ea3","type":"artist","uuid":"d6f16b5b-a228-4a48-8d39-bb79c89d63a7"}
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 0xce919c3c23612c19b8fef76f8078a232f9e9633ddd2fb16e1f90cf7a2b3278c4. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6f16b5b-a228-4a48-8d39-bb79c89d63a7.json and https://artists.proofprofile.net/proofs/artist/d6f16b5b-a228-4a48-8d39-bb79c89d63a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xce919c3c23612c19b8fef76f8078a232f9e9633ddd2fb16e1f90cf7a2b3278c4","name":"El mano negra","registered_at":"2026-06-21T03:11:02Z","symbol":"NIM1801696","token_address":"0xc3b6e6c13d4779f2afbee25f9405fd43ed336ea3","type":"artist","uuid":"d6f16b5b-a228-4a48-8d39-bb79c89d63a7"}
album: El mano negra y sus canciones
  type: MusicAlbum
  date published: 1970-04-15
album: El mano negra interpreta su máximo éxito: el corrido del mano negra
  type: MusicAlbum
  date published: 1977-11-17
album: El espectacular mano negra
  type: MusicAlbum
  date published: 1981-10-05