Owen Johnston
type: MusicGroup
popularity: 2
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1599990cc8b997778489dd4a4d8766f2d13657471574dda1195d1a4c983d069b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e81a6303-a7ab-46d6-b42b-6713bcf42978.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e81a6303-a7ab-46d6-b42b-6713bcf42978.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e81a6303-a7ab-46d6-b42b-6713bcf42978
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1599990cc8b997778489dd4a4d8766f2d13657471574dda1195d1a4c983d069b","name":"Owen Johnston","registered_at":"2026-06-21T09:26:45Z","symbol":"NIM1887619","token_address":"0x307a8128de0fbf6c7f9b9186edd8f7288bc0a8a2","type":"artist","uuid":"e81a6303-a7ab-46d6-b42b-6713bcf42978"}
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 0x1599990cc8b997778489dd4a4d8766f2d13657471574dda1195d1a4c983d069b. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e81a6303-a7ab-46d6-b42b-6713bcf42978.json and https://artists.proofprofile.net/proofs/artist/e81a6303-a7ab-46d6-b42b-6713bcf42978.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x1599990cc8b997778489dd4a4d8766f2d13657471574dda1195d1a4c983d069b","name":"Owen Johnston","registered_at":"2026-06-21T09:26:45Z","symbol":"NIM1887619","token_address":"0x307a8128de0fbf6c7f9b9186edd8f7288bc0a8a2","type":"artist","uuid":"e81a6303-a7ab-46d6-b42b-6713bcf42978"}