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 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 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, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  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
  track: Black Night Woman
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204661
    explicit: false
    by artist: F. J. McMahon
    in album: Spirit of the Golden Juice
      type: MusicAlbum
      date published: 2020-02-27
    isrc code: QMV8L1604604
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:42:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xec288410065326309bb75ddacb27099a0ddc55eb56288631fa77a5f07504d7dd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMV8L1604604
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xec288410065326309bb75ddacb27099a0ddc55eb56288631fa77a5f07504d7dd. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMV8L1604604 — a six-check JSON result.
      date published: 2026-07-22T11:35:32Z
    audio: Black Night Woman
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.762
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.648
      additional property: Energy
        type: PropertyValue
        value: 0.391
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.765
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.014
      additional property: Liveness
        type: PropertyValue
        value: 0.221
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.682
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.065
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
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