Jon Barker
type: MusicGroup
popularity: 15
followers: 384
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a22ee6d73a0e610c0293cd2bedcf377bea2995a0e548f373343fd3052519560
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953791
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953791
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e01eee6a-05e9-4b7d-a01d-1c7f51a77180.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e01eee6a-05e9-4b7d-a01d-1c7f51a77180.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e01eee6a-05e9-4b7d-a01d-1c7f51a77180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:40:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6a22ee6d73a0e610c0293cd2bedcf377bea2995a0e548f373343fd3052519560","name":"Jon Barker","registered_at":"2026-06-15T04:04:07Z","symbol":"NIM0676300","token_address":"0x022853daa10b993c9ddee084c9ca19866a270bdd","type":"artist","uuid":"e01eee6a-05e9-4b7d-a01d-1c7f51a77180"}
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 0x6a22ee6d73a0e610c0293cd2bedcf377bea2995a0e548f373343fd3052519560. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e01eee6a-05e9-4b7d-a01d-1c7f51a77180.json and https://artists.proofprofile.net/proofs/artist/e01eee6a-05e9-4b7d-a01d-1c7f51a77180.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T13:40:30Z
  text: {"copyright_id":"0x6a22ee6d73a0e610c0293cd2bedcf377bea2995a0e548f373343fd3052519560","name":"Jon Barker","registered_at":"2026-06-15T04:04:07Z","symbol":"NIM0676300","token_address":"0x022853daa10b993c9ddee084c9ca19866a270bdd","type":"artist","uuid":"e01eee6a-05e9-4b7d-a01d-1c7f51a77180"}
album: Thank You For Being My Dad (Backing Track)
  type: MusicAlbum
  date published: 2006
album: Songs To Strike A Chord
  type: MusicAlbum
  date published: 2006
album: Lay Down Your Guns
  type: MusicAlbum
  date published: 2015-12-02
album: Sing Out for England
  type: MusicAlbum
  date published: 2016-05-30
album: Farewell to You Old Friend
  type: MusicAlbum
  date published: 2019-06-03
  track: Thank You for Being My Dad (Daughter to Father)
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240048
    explicit: false
    by artist: Jon Barker
    in album: Farewell to You Old Friend
      type: MusicAlbum
      date published: 2019-06-03
    isrc code: USJ3V1852462
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T19:02:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb11146767474fa0b7d0315ef67959fe6c575dd4eb55d252382aadaf83dab6339
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1852462
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xb11146767474fa0b7d0315ef67959fe6c575dd4eb55d252382aadaf83dab6339. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1852462.
      date published: 2026-07-03T19:59:51Z
    audio: Thank You for Being My Dad (Daughter to Father)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.806
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.414
      additional property: Energy
        type: PropertyValue
        value: 0.185
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.912
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.181
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.221
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.908
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Spectator TV Theme
  type: MusicAlbum
  date published: 2020-10-30