El Negro Ojeda
type: MusicGroup
genre: trova
popularity: 5
followers: 1402
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42922b412cd3d0a088930748ccb371a62537894ca58d544ee3db4b0cfd68c5dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42922b412cd3d0a088930748ccb371a62537894ca58d544ee3db4b0cfd68c5dd","name":"El Negro Ojeda","registered_at":"2026-06-20T18:18:34Z","symbol":"NIM1674498","token_address":"0x2c575c19d1fd2f42200293477a2bc52f396d62d1","type":"artist","uuid":"be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42922b412cd3d0a088930748ccb371a62537894ca58d544ee3db4b0cfd68c5dd. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4.json and https://artists.proofprofile.net/proofs/artist/be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0x42922b412cd3d0a088930748ccb371a62537894ca58d544ee3db4b0cfd68c5dd","name":"El Negro Ojeda","registered_at":"2026-06-20T18:18:34Z","symbol":"NIM1674498","token_address":"0x2c575c19d1fd2f42200293477a2bc52f396d62d1","type":"artist","uuid":"be2a6bf3-8c0e-4b3a-9373-77a2abcb24b4"}
album: Antología - 50 Años
  type: MusicAlbum
  date published: 1986
album: Bellas Artes, ¡al fin!
  type: MusicAlbum
  date published: 2004