Haydn Walker
type: MusicGroup
popularity: 17
followers: 115
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91dc75729a3240df0870463d5be3f91bf81bbf7321433a48f688462b0520fc4f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbb63011-fe63-4c67-9171-01e4aee291b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbb63011-fe63-4c67-9171-01e4aee291b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbb63011-fe63-4c67-9171-01e4aee291b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x91dc75729a3240df0870463d5be3f91bf81bbf7321433a48f688462b0520fc4f","name":"Haydn Walker","registered_at":"2026-06-15T03:35:28Z","symbol":"NIM0669462","token_address":"0xc4658eff56fc27b6c93db4d017fdaa3307d651a6","type":"artist","uuid":"dbb63011-fe63-4c67-9171-01e4aee291b4"}
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 0x91dc75729a3240df0870463d5be3f91bf81bbf7321433a48f688462b0520fc4f. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbb63011-fe63-4c67-9171-01e4aee291b4.json and https://artists.proofprofile.net/proofs/artist/dbb63011-fe63-4c67-9171-01e4aee291b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x91dc75729a3240df0870463d5be3f91bf81bbf7321433a48f688462b0520fc4f","name":"Haydn Walker","registered_at":"2026-06-15T03:35:28Z","symbol":"NIM0669462","token_address":"0xc4658eff56fc27b6c93db4d017fdaa3307d651a6","type":"artist","uuid":"dbb63011-fe63-4c67-9171-01e4aee291b4"}
album: Men's Group
  type: MusicAlbum
  date published: 2008-08-19
album: Girls Can't Surf
  type: MusicAlbum
  date published: 2021-04-09
album: Girls Can't Surf
  type: MusicAlbum
  date published: 2025-09-06