Hokuto Sato
type: MusicGroup
genre: jazz house
popularity: 22
followers: 821
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e54496bdc8650d019c49af90a5bc20eaa676517a8f66d7eae18ef57f099c0d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953408
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953408
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb150ae2-e719-45ba-9a7f-b51595cf8fea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb150ae2-e719-45ba-9a7f-b51595cf8fea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb150ae2-e719-45ba-9a7f-b51595cf8fea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:28:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e54496bdc8650d019c49af90a5bc20eaa676517a8f66d7eae18ef57f099c0d7","name":"Hokuto Sato","registered_at":"2026-06-12T09:54:13Z","symbol":"NIM0262158","token_address":"0x37e43a2447559db8e15360a5cc48fc466abe31b6","type":"artist","uuid":"cb150ae2-e719-45ba-9a7f-b51595cf8fea"}
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 0x8e54496bdc8650d019c49af90a5bc20eaa676517a8f66d7eae18ef57f099c0d7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb150ae2-e719-45ba-9a7f-b51595cf8fea.json and https://artists.proofprofile.net/proofs/artist/cb150ae2-e719-45ba-9a7f-b51595cf8fea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x8e54496bdc8650d019c49af90a5bc20eaa676517a8f66d7eae18ef57f099c0d7","name":"Hokuto Sato","registered_at":"2026-06-12T09:54:13Z","symbol":"NIM0262158","token_address":"0x37e43a2447559db8e15360a5cc48fc466abe31b6","type":"artist","uuid":"cb150ae2-e719-45ba-9a7f-b51595cf8fea"}
album: Llain EP
  type: MusicAlbum
  date published: 2013-12-23
album: Years
  type: MusicAlbum
  date published: 2014-03-27
album: Jazz on the Moon
  type: MusicAlbum
  date published: 2015-07-27
  track: Jazz on the Moon
    type: MusicRecording
    duration: PT7M22S
    duration ms: 442013
    explicit: false
    by artist: Hokuto Sato
    in album: Jazz on the Moon
      type: MusicAlbum
      date published: 2015-07-27
    genre: jazz house
    isrc code: FRX871512281
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T04:38:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaff8ddfa5dce9f7db225c8beeffff2c53d3aabb22815e1ee47a5ec0b2911e2aa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX871512281
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xaff8ddfa5dce9f7db225c8beeffff2c53d3aabb22815e1ee47a5ec0b2911e2aa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FRX871512281.
      date published: 2026-07-19T07:14:39Z
    audio: Jazz on the Moon
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.01
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.837
      additional property: Energy
        type: PropertyValue
        value: 0.745
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.014
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.941
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.583
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.009
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major