Willie Chapman
type: MusicGroup
genre: bluegrass
genre: country blues
popularity: 2
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfad835b4ef4a59a20d1e87efac92c19278ce01511125287dceec7bf36a654842
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/63be7417-e925-441b-8fa8-e72b679b4cf5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/63be7417-e925-441b-8fa8-e72b679b4cf5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/63be7417-e925-441b-8fa8-e72b679b4cf5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfad835b4ef4a59a20d1e87efac92c19278ce01511125287dceec7bf36a654842","name":"Willie Chapman","registered_at":"2026-06-17T00:25:17Z","symbol":"NIM1223092","token_address":"0x51d31a08c8ed13a975b14c1d706fb7c344b373ca","type":"artist","uuid":"63be7417-e925-441b-8fa8-e72b679b4cf5"}
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 0xfad835b4ef4a59a20d1e87efac92c19278ce01511125287dceec7bf36a654842. 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/63be7417-e925-441b-8fa8-e72b679b4cf5.json and https://artists.proofprofile.net/proofs/artist/63be7417-e925-441b-8fa8-e72b679b4cf5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xfad835b4ef4a59a20d1e87efac92c19278ce01511125287dceec7bf36a654842","name":"Willie Chapman","registered_at":"2026-06-17T00:25:17Z","symbol":"NIM1223092","token_address":"0x51d31a08c8ed13a975b14c1d706fb7c344b373ca","type":"artist","uuid":"63be7417-e925-441b-8fa8-e72b679b4cf5"}