A Blanco & Negro
type: MusicGroup
popularity: 2
followers: 159
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb579a6e26ea29af6c0822259990d74dc0779cc3e15665d7e881bde655b0aca64
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7904383d-5238-4d75-94f0-ece9e430bb63.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7904383d-5238-4d75-94f0-ece9e430bb63.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7904383d-5238-4d75-94f0-ece9e430bb63
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb579a6e26ea29af6c0822259990d74dc0779cc3e15665d7e881bde655b0aca64","name":"A Blanco & Negro","registered_at":"2026-06-17T07:49:15Z","symbol":"NIM1329000","token_address":"0xeb827ed515e2a38c961c4f09ab775bb8784506b7","type":"artist","uuid":"7904383d-5238-4d75-94f0-ece9e430bb63"}
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 0xb579a6e26ea29af6c0822259990d74dc0779cc3e15665d7e881bde655b0aca64. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7904383d-5238-4d75-94f0-ece9e430bb63.json and https://artists.proofprofile.net/proofs/artist/7904383d-5238-4d75-94f0-ece9e430bb63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb579a6e26ea29af6c0822259990d74dc0779cc3e15665d7e881bde655b0aca64","name":"A Blanco & Negro","registered_at":"2026-06-17T07:49:15Z","symbol":"NIM1329000","token_address":"0xeb827ed515e2a38c961c4f09ab775bb8784506b7","type":"artist","uuid":"7904383d-5238-4d75-94f0-ece9e430bb63"}
album: A Blanco y Negro
  type: MusicAlbum
  date published: 2019
album: Dar
  type: MusicAlbum
  date published: 2023-08-10
album: Desde la Rancha #1
  type: MusicAlbum
  date published: 2023-08-26
album: A Blanco & Negro
  type: MusicAlbum
  date published: 2024-02-15