Black Blanco
type: MusicGroup
popularity: 3
followers: 90
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c9a4bad52dfc0a7485cef2254ffefca43e6709e798b45d164b52c3a9b46a043
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953982
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953982
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cdca8e3-9595-4040-b724-99a9026d154c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cdca8e3-9595-4040-b724-99a9026d154c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cdca8e3-9595-4040-b724-99a9026d154c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:42:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5c9a4bad52dfc0a7485cef2254ffefca43e6709e798b45d164b52c3a9b46a043","name":"Black Blanco","registered_at":"2026-06-16T05:09:32Z","symbol":"NIM0947293","token_address":"0xa863e0c07f4300b5a62f778dc980e838cdd049b7","type":"artist","uuid":"2cdca8e3-9595-4040-b724-99a9026d154c"}
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 0x5c9a4bad52dfc0a7485cef2254ffefca43e6709e798b45d164b52c3a9b46a043. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cdca8e3-9595-4040-b724-99a9026d154c.json and https://artists.proofprofile.net/proofs/artist/2cdca8e3-9595-4040-b724-99a9026d154c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T17:42:23Z
  text: {"copyright_id":"0x5c9a4bad52dfc0a7485cef2254ffefca43e6709e798b45d164b52c3a9b46a043","name":"Black Blanco","registered_at":"2026-06-16T05:09:32Z","symbol":"NIM0947293","token_address":"0xa863e0c07f4300b5a62f778dc980e838cdd049b7","type":"artist","uuid":"2cdca8e3-9595-4040-b724-99a9026d154c"}
album: Persona Privada de la Libertad
  type: MusicAlbum
  date published: 2024-10-18
album: PPL
  type: MusicAlbum
  date published: 2024-10-25