Black Bros.
type: MusicGroup
popularity: 6
followers: 162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa05086ab1a35d8f1aa83fc67799b08ab819f38cd58ec3e6ad3772ae69aa81b8a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/101fd62c-2a57-4633-84a8-455215746dba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/101fd62c-2a57-4633-84a8-455215746dba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/101fd62c-2a57-4633-84a8-455215746dba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa05086ab1a35d8f1aa83fc67799b08ab819f38cd58ec3e6ad3772ae69aa81b8a","name":"Black Bros.","registered_at":"2026-06-15T19:14:25Z","symbol":"NIM0805244","token_address":"0xba29a013122e719e6fb7d6bf0c3fd4047f7e6d73","type":"artist","uuid":"101fd62c-2a57-4633-84a8-455215746dba"}
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 0xa05086ab1a35d8f1aa83fc67799b08ab819f38cd58ec3e6ad3772ae69aa81b8a. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/101fd62c-2a57-4633-84a8-455215746dba.json and https://artists.proofprofile.net/proofs/artist/101fd62c-2a57-4633-84a8-455215746dba.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T06:05:56Z
  text: {"copyright_id":"0xa05086ab1a35d8f1aa83fc67799b08ab819f38cd58ec3e6ad3772ae69aa81b8a","name":"Black Bros.","registered_at":"2026-06-15T19:14:25Z","symbol":"NIM0805244","token_address":"0xba29a013122e719e6fb7d6bf0c3fd4047f7e6d73","type":"artist","uuid":"101fd62c-2a57-4633-84a8-455215746dba"}
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