Kento Masuda
type: MusicGroup
popularity: 3
followers: 439
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7833ee2f8cf80d511154ccb8933c3f7b132f37043d8dc2332a7182f03a39b73d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6627ef5b-a8ab-4202-bf8f-2327626e5510.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6627ef5b-a8ab-4202-bf8f-2327626e5510.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6627ef5b-a8ab-4202-bf8f-2327626e5510
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7833ee2f8cf80d511154ccb8933c3f7b132f37043d8dc2332a7182f03a39b73d","name":"Kento Masuda","registered_at":"2026-06-17T01:10:30Z","symbol":"NIM1233874","token_address":"0x35893e06b28c2ef15b66fb579133c3e4d5ce5f36","type":"artist","uuid":"6627ef5b-a8ab-4202-bf8f-2327626e5510"}
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 0x7833ee2f8cf80d511154ccb8933c3f7b132f37043d8dc2332a7182f03a39b73d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6627ef5b-a8ab-4202-bf8f-2327626e5510.json and https://artists.proofprofile.net/proofs/artist/6627ef5b-a8ab-4202-bf8f-2327626e5510.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x7833ee2f8cf80d511154ccb8933c3f7b132f37043d8dc2332a7182f03a39b73d","name":"Kento Masuda","registered_at":"2026-06-17T01:10:30Z","symbol":"NIM1233874","token_address":"0x35893e06b28c2ef15b66fb579133c3e4d5ce5f36","type":"artist","uuid":"6627ef5b-a8ab-4202-bf8f-2327626e5510"}
album: Myojyow
  type: MusicAlbum
  date published: 1998-06-19
album: Memories
  type: MusicAlbum
  date published: 1999-10-29
album: Memories
  type: MusicAlbum
  date published: 1999-10-29
album: Hands
  type: MusicAlbum
  date published: 2003-09-26
album: Globesounds
  type: MusicAlbum
  date published: 2006
  track: Externalnet
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191559
    explicit: false
    by artist: Kento Masuda
    in album: Globesounds
      type: MusicAlbum
      date published: 2006
    isrc code: USJP10530601
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T22:11:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcd6b86634b5345608f2e8214c0f21154534035021664dc53efc9f2fff1603b44
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958621
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958621
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJP10530601
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T22:59:44Z
    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 0xcd6b86634b5345608f2e8214c0f21154534035021664dc53efc9f2fff1603b44. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USJP10530601.
      date published: 2026-07-18T22:59:44Z
    audio: Externalnet
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.917
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.471
      additional property: Energy
        type: PropertyValue
        value: 0.732
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.828
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.679
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.977
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Globesounds
  type: MusicAlbum
  date published: 2006-07-10
album: Light Speed+
  type: MusicAlbum
  date published: 2010-09-11
album: HANDS
  type: MusicAlbum
  date published: 2012-01-28
album: GlobeSounds
  type: MusicAlbum
  date published: 2012-01-28
album: All in the Silence
  type: MusicAlbum
  date published: 2012-09-26
album: オールインザサイレンス
  type: MusicAlbum
  date published: 2012-09-26
album: Loved One
  type: MusicAlbum
  date published: 2014-04-16
album: Kentoverse
  type: MusicAlbum
  date published: 2021-12-21
album: Sacred Vows: The Celebrations Suite
  type: MusicAlbum
  date published: 2025-02-22
album: One
  type: MusicAlbum
  date published: 2025-02-25
album: Persona
  type: MusicAlbum
  date published: 2025-02-25