John Millar
type: MusicGroup
genre: sea shanties
genre: traditional folk
description: John Millar may refer to: John Millar (philosopher) (1735–1801), Scottish philosopher and historian John Millar, Lord Craighill (1817–1888), Scottish judge John A. Millar (1855–1915), New Zealand poli
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55ebd5b648384cfd8872911a2fd62fe6e9f27e32b5bc4529b138751e634d2e5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1b7a14e-d75b-4b7e-b05c-83caad1fade0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1b7a14e-d75b-4b7e-b05c-83caad1fade0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d1b7a14e-d75b-4b7e-b05c-83caad1fade0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55ebd5b648384cfd8872911a2fd62fe6e9f27e32b5bc4529b138751e634d2e5d","name":"John Millar","registered_at":"2026-06-21T01:36:30Z","symbol":"NIM1778887","token_address":"0x536cdd760f352482fed96501867dbfa67f62ebd6","type":"artist","uuid":"d1b7a14e-d75b-4b7e-b05c-83caad1fade0"}
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 0x55ebd5b648384cfd8872911a2fd62fe6e9f27e32b5bc4529b138751e634d2e5d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1b7a14e-d75b-4b7e-b05c-83caad1fade0.json and https://artists.proofprofile.net/proofs/artist/d1b7a14e-d75b-4b7e-b05c-83caad1fade0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x55ebd5b648384cfd8872911a2fd62fe6e9f27e32b5bc4529b138751e634d2e5d","name":"John Millar","registered_at":"2026-06-21T01:36:30Z","symbol":"NIM1778887","token_address":"0x536cdd760f352482fed96501867dbfa67f62ebd6","type":"artist","uuid":"d1b7a14e-d75b-4b7e-b05c-83caad1fade0"}