F. J. McMahon
type: MusicGroup
popularity: 40
followers: 15703
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ac43945a824974b7d178888941a2d01cf4ef0778f2e85d96007e37a588c0adf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae3b5eea-06db-4f44-a154-0a9cf5b076b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae3b5eea-06db-4f44-a154-0a9cf5b076b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ae3b5eea-06db-4f44-a154-0a9cf5b076b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ac43945a824974b7d178888941a2d01cf4ef0778f2e85d96007e37a588c0adf","name":"F. J. McMahon","registered_at":"2026-06-12T07:11:13Z","symbol":"NIM0224307","token_address":"0x54133200a1f8be9db93898918cf7158297e33e64","type":"artist","uuid":"ae3b5eea-06db-4f44-a154-0a9cf5b076b4"}
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 0x4ac43945a824974b7d178888941a2d01cf4ef0778f2e85d96007e37a588c0adf. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae3b5eea-06db-4f44-a154-0a9cf5b076b4.json and https://artists.proofprofile.net/proofs/artist/ae3b5eea-06db-4f44-a154-0a9cf5b076b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4ac43945a824974b7d178888941a2d01cf4ef0778f2e85d96007e37a588c0adf","name":"F. J. McMahon","registered_at":"2026-06-12T07:11:13Z","symbol":"NIM0224307","token_address":"0x54133200a1f8be9db93898918cf7158297e33e64","type":"artist","uuid":"ae3b5eea-06db-4f44-a154-0a9cf5b076b4"}
album: Spirit Of The Golden Juice
  type: MusicAlbum
  date published: 1969-02-28
album: Spirit of the Golden Juice
  type: MusicAlbum
  date published: 2009-11-30
album: Spirit of the Golden Juice
  type: MusicAlbum
  date published: 2020-02-27
album: Spirit of the Golden Juice
  type: MusicAlbum
  date published: 2020-02-27
album: Spirit of the Golden Juice
  type: MusicAlbum
  date published: 2020-02-27
album: Spirit Of The Golden Juice
  type: MusicAlbum
  date published: 2020-03-02