しゅう
type: MusicGroup
genre: japanese indie
genre: shibuya-kei
popularity: 11
followers: 302
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd671d58825ed7c69a26b4ae8a35c518930b6515de72a65a21a856823868b90ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b11b917f-ae1f-4e4c-9643-53819851a18d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b11b917f-ae1f-4e4c-9643-53819851a18d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b11b917f-ae1f-4e4c-9643-53819851a18d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd671d58825ed7c69a26b4ae8a35c518930b6515de72a65a21a856823868b90ec","name":"しゅう","registered_at":"2026-06-14T23:04:50Z","symbol":"NIM0604814","token_address":"0xa4fce22e8bc094714fb4d68d42c790cf490b9b12","type":"artist","uuid":"b11b917f-ae1f-4e4c-9643-53819851a18d"}
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 0xd671d58825ed7c69a26b4ae8a35c518930b6515de72a65a21a856823868b90ec. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b11b917f-ae1f-4e4c-9643-53819851a18d.json and https://artists.proofprofile.net/proofs/artist/b11b917f-ae1f-4e4c-9643-53819851a18d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0xd671d58825ed7c69a26b4ae8a35c518930b6515de72a65a21a856823868b90ec","name":"しゅう","registered_at":"2026-06-14T23:04:50Z","symbol":"NIM0604814","token_address":"0xa4fce22e8bc094714fb4d68d42c790cf490b9b12","type":"artist","uuid":"b11b917f-ae1f-4e4c-9643-53819851a18d"}
album: オトナ遊び
  type: MusicAlbum
  date published: 2023-05-06
  track: オトナ遊び
    type: MusicRecording
    duration: PT2M28S
    duration ms: 148217
    explicit: false
    by artist: しゅう
    in album: オトナ遊び
      type: MusicAlbum
      date published: 2023-05-06
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JP92N2325589
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T18:48:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa56d5e300b41d5d76e1b3898bdc757ff399c922f5f37679376751c09d5f5ede9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958194
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958194
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2325589
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T20:32:27Z
    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 0xa56d5e300b41d5d76e1b3898bdc757ff399c922f5f37679376751c09d5f5ede9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2325589 — a six-check JSON result.
      date published: 2026-07-15T20:32:27Z
    audio: オトナ遊び
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.863
      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: 0.716
      additional property: Energy
        type: PropertyValue
        value: 0.591
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.253
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.452
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.462
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major