Peter Andrew Barker
type: MusicGroup
popularity: 10
followers: 45
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc630a7cd62cb5df8f65e755140181f99a4a953818320a5c678a5c5d7c6c48e42
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acfb5810-66fe-4f21-9d81-300eae880fa5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acfb5810-66fe-4f21-9d81-300eae880fa5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acfb5810-66fe-4f21-9d81-300eae880fa5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc630a7cd62cb5df8f65e755140181f99a4a953818320a5c678a5c5d7c6c48e42","name":"Peter Andrew Barker","registered_at":"2026-06-20T10:23:34Z","symbol":"NIM1590342","token_address":"0x4f76c5f815f869c1ccfb5167ed697e9acaf11d9f","type":"artist","uuid":"acfb5810-66fe-4f21-9d81-300eae880fa5"}
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 0xc630a7cd62cb5df8f65e755140181f99a4a953818320a5c678a5c5d7c6c48e42. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acfb5810-66fe-4f21-9d81-300eae880fa5.json and https://artists.proofprofile.net/proofs/artist/acfb5810-66fe-4f21-9d81-300eae880fa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xc630a7cd62cb5df8f65e755140181f99a4a953818320a5c678a5c5d7c6c48e42","name":"Peter Andrew Barker","registered_at":"2026-06-20T10:23:34Z","symbol":"NIM1590342","token_address":"0x4f76c5f815f869c1ccfb5167ed697e9acaf11d9f","type":"artist","uuid":"acfb5810-66fe-4f21-9d81-300eae880fa5"}