John Varn
type: MusicGroup
popularity: 11
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7ef3b6b180a0ff9b252864f7456b7c5cb6168a7b73146993de53971ee9d0a38
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fa63f43-b672-4986-b7bf-161c771c374e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fa63f43-b672-4986-b7bf-161c771c374e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6fa63f43-b672-4986-b7bf-161c771c374e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb7ef3b6b180a0ff9b252864f7456b7c5cb6168a7b73146993de53971ee9d0a38","name":"John Varn","registered_at":"2026-06-14T16:14:50Z","symbol":"NIM0507043","token_address":"0xeaaa04fe6383ef1ca74bcf682880e87ed68a4b80","type":"artist","uuid":"6fa63f43-b672-4986-b7bf-161c771c374e"}
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 0xb7ef3b6b180a0ff9b252864f7456b7c5cb6168a7b73146993de53971ee9d0a38. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fa63f43-b672-4986-b7bf-161c771c374e.json and https://artists.proofprofile.net/proofs/artist/6fa63f43-b672-4986-b7bf-161c771c374e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0xb7ef3b6b180a0ff9b252864f7456b7c5cb6168a7b73146993de53971ee9d0a38","name":"John Varn","registered_at":"2026-06-14T16:14:50Z","symbol":"NIM0507043","token_address":"0xeaaa04fe6383ef1ca74bcf682880e87ed68a4b80","type":"artist","uuid":"6fa63f43-b672-4986-b7bf-161c771c374e"}