Ryu Ito
type: MusicGroup
genre: japanese classical
popularity: 16
followers: 417
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98a11f978de5a56b9613033ac23c84a1ce8156fe81fecf32105834028dfed116
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce25292a-cd8a-4726-9fdc-9429151d29f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce25292a-cd8a-4726-9fdc-9429151d29f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce25292a-cd8a-4726-9fdc-9429151d29f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x98a11f978de5a56b9613033ac23c84a1ce8156fe81fecf32105834028dfed116","name":"Ryu Ito","registered_at":"2026-06-15T02:07:12Z","symbol":"NIM0648397","token_address":"0x74c4cda26f46baacde1f4e7d46f9d0cb8b337953","type":"artist","uuid":"ce25292a-cd8a-4726-9fdc-9429151d29f0"}
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 0x98a11f978de5a56b9613033ac23c84a1ce8156fe81fecf32105834028dfed116. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce25292a-cd8a-4726-9fdc-9429151d29f0.json and https://artists.proofprofile.net/proofs/artist/ce25292a-cd8a-4726-9fdc-9429151d29f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0x98a11f978de5a56b9613033ac23c84a1ce8156fe81fecf32105834028dfed116","name":"Ryu Ito","registered_at":"2026-06-15T02:07:12Z","symbol":"NIM0648397","token_address":"0x74c4cda26f46baacde1f4e7d46f9d0cb8b337953","type":"artist","uuid":"ce25292a-cd8a-4726-9fdc-9429151d29f0"}
album: Elderflowers
  type: MusicAlbum
  date published: 2019-12-13
album: Perseverance
  type: MusicAlbum
  date published: 2020-04-24
album: Tears Of Joy
  type: MusicAlbum
  date published: 2020-07-17
album: Storyboard
  type: MusicAlbum
  date published: 2020-10-16
album: Thoughtful Walks
  type: MusicAlbum
  date published: 2021-03-23
  track: Thoughtful Walks
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164500
    explicit: false
    by artist: Ryu Ito
    in album: Thoughtful Walks
      type: MusicAlbum
      date published: 2021-03-23
    genre: japanese classical
    isrc code: SE5W32100833
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:56:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbecc308e75d52a4deda470ecdab5a0cac545bb724f5bee74c8e86d5612bc6893
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32100833
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xbecc308e75d52a4deda470ecdab5a0cac545bb724f5bee74c8e86d5612bc6893. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5W32100833.
      date published: 2026-07-05T19:27:56Z
    audio: Thoughtful Walks
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.932
      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: 0.485
      additional property: Energy
        type: PropertyValue
        value: 0.015
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.989
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.896
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.055
      additional property: Loudness (dB)
        type: PropertyValue
        value: -27.216
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major