Cantaro Ihara
type: MusicGroup
genre: city pop
genre: j-r&b
popularity: 6
followers: 1453
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81a53a87f4752595d3d7f70eafae84166b40499fe4078799bb11f556b0c67279
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f98aee94-fb4c-4d81-bbbb-e6466ffa04b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f98aee94-fb4c-4d81-bbbb-e6466ffa04b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f98aee94-fb4c-4d81-bbbb-e6466ffa04b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81a53a87f4752595d3d7f70eafae84166b40499fe4078799bb11f556b0c67279","name":"Cantaro Ihara","registered_at":"2026-06-21T16:41:18Z","symbol":"NIM1973029","token_address":"0xe6349d03ea410893768c63078e8c31a79522aab1","type":"artist","uuid":"f98aee94-fb4c-4d81-bbbb-e6466ffa04b2"}
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 0x81a53a87f4752595d3d7f70eafae84166b40499fe4078799bb11f556b0c67279. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f98aee94-fb4c-4d81-bbbb-e6466ffa04b2.json and https://artists.proofprofile.net/proofs/artist/f98aee94-fb4c-4d81-bbbb-e6466ffa04b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x81a53a87f4752595d3d7f70eafae84166b40499fe4078799bb11f556b0c67279","name":"Cantaro Ihara","registered_at":"2026-06-21T16:41:18Z","symbol":"NIM1973029","token_address":"0xe6349d03ea410893768c63078e8c31a79522aab1","type":"artist","uuid":"f98aee94-fb4c-4d81-bbbb-e6466ffa04b2"}
album: C
  type: MusicAlbum
  date published: 2020-04-08
album: C
  type: MusicAlbum
  date published: 2020-10-01
album: I Love You
  type: MusicAlbum
  date published: 2022-01-19
album: You Are Right
  type: MusicAlbum
  date published: 2022-02-02
  track: You Are Right
    type: MusicRecording
    duration: PT3M47S
    duration ms: 227500
    explicit: false
    by artist: Cantaro Ihara
    in album: You Are Right
      type: MusicAlbum
      date published: 2022-02-02
    genre: city pop
    genre: j-r&b
    isrc code: JPV502100646
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T22:14:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x97fc09af636f2c621bb99360c55649683520a57fd2aa34c0adfd8ef111ff35d5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958942
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958942
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPV502100646
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:24:07Z
    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 0x97fc09af636f2c621bb99360c55649683520a57fd2aa34c0adfd8ef111ff35d5. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPV502100646.
      date published: 2026-07-21T00:24:07Z
    audio: You Are Right
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.046
      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: 0.594
      additional property: Energy
        type: PropertyValue
        value: 0.45
      additional property: Speechiness
        type: PropertyValue
        value: 0.023
      additional property: Acousticness
        type: PropertyValue
        value: 0.568
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.029
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.543
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.361
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: つむぐように (Twiny)
  type: MusicAlbum
  date published: 2022-09-09
album: I Love You (DJ Mitsu The Beats Remix)
  type: MusicAlbum
  date published: 2023-02-01
album: Baby So in Love
  type: MusicAlbum
  date published: 2023-03-31
album: Portray
  type: MusicAlbum
  date published: 2023-04-28