The Four King Cousins
type: MusicGroup
genre: baroque pop
genre: chamber pop
popularity: 6
followers: 881
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35dd8001f4968efbc3cdd2b7e2d0038ee2dfaca98d385dff5f93e7fc64505bd8
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/b7c40963-691a-4e0b-b6b9-61d4354efbb6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7c40963-691a-4e0b-b6b9-61d4354efbb6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7c40963-691a-4e0b-b6b9-61d4354efbb6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35dd8001f4968efbc3cdd2b7e2d0038ee2dfaca98d385dff5f93e7fc64505bd8","name":"The Four King Cousins","registered_at":"2026-06-20T15:40:07Z","symbol":"NIM1644731","token_address":"0xf316da3c8c6d3844254e754f520120bb201e77ba","type":"artist","uuid":"b7c40963-691a-4e0b-b6b9-61d4354efbb6"}
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 0x35dd8001f4968efbc3cdd2b7e2d0038ee2dfaca98d385dff5f93e7fc64505bd8. 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/b7c40963-691a-4e0b-b6b9-61d4354efbb6.json and https://artists.proofprofile.net/proofs/artist/b7c40963-691a-4e0b-b6b9-61d4354efbb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x35dd8001f4968efbc3cdd2b7e2d0038ee2dfaca98d385dff5f93e7fc64505bd8","name":"The Four King Cousins","registered_at":"2026-06-20T15:40:07Z","symbol":"NIM1644731","token_address":"0xf316da3c8c6d3844254e754f520120bb201e77ba","type":"artist","uuid":"b7c40963-691a-4e0b-b6b9-61d4354efbb6"}
album: Introducing...The Four King Cousins
  type: MusicAlbum
  date published: 1968-01-01
  track: I Fell
    type: MusicRecording
    duration: PT2M33S
    duration ms: 153853
    explicit: false
    by artist: The Four King Cousins
    in album: Introducing...The Four King Cousins
      type: MusicAlbum
      date published: 1968-01-01
    genre: baroque pop
    genre: chamber pop
    isrc code: USCA20100471
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T12:44:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32f2915e2c904b9128bb6b15cebc83678ce4ab1e76d685f11423784171728691
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958736
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958736
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCA20100471
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T15:46:37Z
    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 0x32f2915e2c904b9128bb6b15cebc83678ce4ab1e76d685f11423784171728691. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:37Z), 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/USCA20100471.
      date published: 2026-07-19T15:46:37Z
    audio: I Fell
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.228
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.56
      additional property: Energy
        type: PropertyValue
        value: 0.498
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.13
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.307
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.343
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.424
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: More Today Than Yesterday: Classic Songs of the '60s & '70s
  type: MusicAlbum
  date published: 2013-07-25
album: Leavin It All Behind (2025 Remaster)
  type: MusicAlbum
  date published: 2025-09-12