La Contreras
type: MusicGroup
genre: flamenco
popularity: 2
followers: 405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e494a806fe178bbf672c97b38e701f8c1ff3ee3d9046dca721eb22c6a12ddb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953978
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953978
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c0fe75e-e2a1-4da0-8e64-166cfb32a169.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c0fe75e-e2a1-4da0-8e64-166cfb32a169.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c0fe75e-e2a1-4da0-8e64-166cfb32a169
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:11:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e494a806fe178bbf672c97b38e701f8c1ff3ee3d9046dca721eb22c6a12ddb7","name":"La Contreras","registered_at":"2026-06-16T04:51:50Z","symbol":"NIM0943065","token_address":"0xac2393a806af7ba3e6f0eb6edd167d01784b104f","type":"artist","uuid":"2c0fe75e-e2a1-4da0-8e64-166cfb32a169"}
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 0x4e494a806fe178bbf672c97b38e701f8c1ff3ee3d9046dca721eb22c6a12ddb7. Chain 2 (Bitcoin): anchored in block 953978 (2026-06-16T17:11:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c0fe75e-e2a1-4da0-8e64-166cfb32a169.json and https://artists.proofprofile.net/proofs/artist/2c0fe75e-e2a1-4da0-8e64-166cfb32a169.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T17:11:18Z
  text: {"copyright_id":"0x4e494a806fe178bbf672c97b38e701f8c1ff3ee3d9046dca721eb22c6a12ddb7","name":"La Contreras","registered_at":"2026-06-16T04:51:50Z","symbol":"NIM0943065","token_address":"0xac2393a806af7ba3e6f0eb6edd167d01784b104f","type":"artist","uuid":"2c0fe75e-e2a1-4da0-8e64-166cfb32a169"}
album: Flamenco Impuro
  type: MusicAlbum
  date published: 2020-07-10
album: La Alegria De Mis Hermanas
  type: MusicAlbum
  date published: 2021-04-23
album: Siente Conmigo
  type: MusicAlbum
  date published: 2022-02-11
album: El Puerto
  type: MusicAlbum
  date published: 2022-11-25
album: No Te Vas
  type: MusicAlbum
  date published: 2023-03-24
album: Canto Y La Vida Te Doy
  type: MusicAlbum
  date published: 2024-01-29