Keito Saito
type: MusicGroup
genre: boogie-woogie
popularity: 11
followers: 621
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64c0afeafd7bcaab4c9174fd1850fda0654e788a002994543fc6171c2b357342
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/57ed6204-2150-41c3-a70f-ad6a9b127b0a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/57ed6204-2150-41c3-a70f-ad6a9b127b0a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/57ed6204-2150-41c3-a70f-ad6a9b127b0a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:49:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64c0afeafd7bcaab4c9174fd1850fda0654e788a002994543fc6171c2b357342","name":"Keito Saito","registered_at":"2026-06-14T13:36:10Z","symbol":"NIM0469179","token_address":"0x665809b2421260ec870f3d11e9d2125398951cdb","type":"artist","uuid":"57ed6204-2150-41c3-a70f-ad6a9b127b0a"}
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 0x64c0afeafd7bcaab4c9174fd1850fda0654e788a002994543fc6171c2b357342. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57ed6204-2150-41c3-a70f-ad6a9b127b0a.json and https://artists.proofprofile.net/proofs/artist/57ed6204-2150-41c3-a70f-ad6a9b127b0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:49:01Z
  text: {"copyright_id":"0x64c0afeafd7bcaab4c9174fd1850fda0654e788a002994543fc6171c2b357342","name":"Keito Saito","registered_at":"2026-06-14T13:36:10Z","symbol":"NIM0469179","token_address":"0x665809b2421260ec870f3d11e9d2125398951cdb","type":"artist","uuid":"57ed6204-2150-41c3-a70f-ad6a9b127b0a"}
album: ブギ・ウギ・ファー・イースト
  type: MusicAlbum
  date published: 2008-11-18
album: 「夜明け」
  type: MusicAlbum
  date published: 2017-03-15
album: Piano Blues & Boogie Woogie
  type: MusicAlbum
  date published: 2018-08-08
  track: ロンサム・ブルース
    type: MusicRecording
    duration: PT4M33S
    duration ms: 273066
    explicit: false
    by artist: Keito Saito
    in album: Piano Blues & Boogie Woogie
      type: MusicAlbum
      date published: 2018-08-08
    genre: boogie-woogie
    isrc code: JPPO01802794
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T00:44:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x599f7716603f6701d4798aa0b68656f8c57fdbfc8d9b4c67d0622ee0e78cf59a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956440
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956440
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01802794
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T04:03:57Z
    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 0x599f7716603f6701d4798aa0b68656f8c57fdbfc8d9b4c67d0622ee0e78cf59a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPPO01802794.
      date published: 2026-07-03T04:03:57Z
    audio: ロンサム・ブルース
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.777
      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: 0.427
      additional property: Energy
        type: PropertyValue
        value: 0.265
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.94
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.94
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.307
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.388
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: PIANO PRAYER
  type: MusicAlbum
  date published: 2020-10-14
album: PIANO BEAT ～DRUM’n’BOOGIE～
  type: MusicAlbum
  date published: 2023-09-27