David Hockney Jr.
type: MusicGroup
popularity: 2
followers: 69
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa39875eb9d7e592cf2956034bea38a4c3b9bdaa01cff51a28e071de22cf12cd3
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/ba04fe75-e830-4144-9aca-679824893af6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba04fe75-e830-4144-9aca-679824893af6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba04fe75-e830-4144-9aca-679824893af6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa39875eb9d7e592cf2956034bea38a4c3b9bdaa01cff51a28e071de22cf12cd3","name":"David Hockney Jr.","registered_at":"2026-06-20T16:47:13Z","symbol":"NIM1656463","token_address":"0x11aec0646d003ad370d8c05059b1e68b73c8eafb","type":"artist","uuid":"ba04fe75-e830-4144-9aca-679824893af6"}
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 0xa39875eb9d7e592cf2956034bea38a4c3b9bdaa01cff51a28e071de22cf12cd3. 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/ba04fe75-e830-4144-9aca-679824893af6.json and https://artists.proofprofile.net/proofs/artist/ba04fe75-e830-4144-9aca-679824893af6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa39875eb9d7e592cf2956034bea38a4c3b9bdaa01cff51a28e071de22cf12cd3","name":"David Hockney Jr.","registered_at":"2026-06-20T16:47:13Z","symbol":"NIM1656463","token_address":"0x11aec0646d003ad370d8c05059b1e68b73c8eafb","type":"artist","uuid":"ba04fe75-e830-4144-9aca-679824893af6"}
album: T I M E
  type: MusicAlbum
  date published: 2018-04-13
  track: We're all traveling through
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189000
    explicit: false
    by artist: David Hockney Jr.
    in album: T I M E
      type: MusicAlbum
      date published: 2018-04-13
    isrc code: KRZ291808547
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:05:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5168809eac7dae63e26644ec596fb10df0ce7ccd2419bd9a4ba557d59a5931d6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958802
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958802
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRZ291808547
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T03:05:48Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5168809eac7dae63e26644ec596fb10df0ce7ccd2419bd9a4ba557d59a5931d6. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:05:48Z), 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/KRZ291808547.
      date published: 2026-07-20T03:05:48Z
    audio: We're all traveling through
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 70.023
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.015
      additional property: Speechiness
        type: PropertyValue
        value: 0.073
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.933
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.413
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.929
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major