棗坂シキ(CV.平川大輔)
type: MusicGroup
genre: anime
popularity: 11
followers: 972
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9c6aa5a3790059cb0840fd20871cdbe30f570ec1fa83cd5abf34f48858417a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953842
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953842
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e42c5236-4f68-4ef8-b9a6-36ed337c42cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e42c5236-4f68-4ef8-b9a6-36ed337c42cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e42c5236-4f68-4ef8-b9a6-36ed337c42cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:22:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9c6aa5a3790059cb0840fd20871cdbe30f570ec1fa83cd5abf34f48858417a9","name":"棗坂シキ(CV.平川大輔)","registered_at":"2026-06-15T04:37:36Z","symbol":"NIM0684286","token_address":"0x2f1fd8ce664b179f3fdd2e198cced48e1a93771e","type":"artist","uuid":"e42c5236-4f68-4ef8-b9a6-36ed337c42cc"}
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 0xc9c6aa5a3790059cb0840fd20871cdbe30f570ec1fa83cd5abf34f48858417a9. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e42c5236-4f68-4ef8-b9a6-36ed337c42cc.json and https://artists.proofprofile.net/proofs/artist/e42c5236-4f68-4ef8-b9a6-36ed337c42cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
  text: {"copyright_id":"0xc9c6aa5a3790059cb0840fd20871cdbe30f570ec1fa83cd5abf34f48858417a9","name":"棗坂シキ(CV.平川大輔)","registered_at":"2026-06-15T04:37:36Z","symbol":"NIM0684286","token_address":"0x2f1fd8ce664b179f3fdd2e198cced48e1a93771e","type":"artist","uuid":"e42c5236-4f68-4ef8-b9a6-36ed337c42cc"}
album: Dance with Devils キャラクターシングル5 棗坂シキ
  type: MusicAlbum
  date published: 2015-11-25
  track: 憐憫 揺籃歌
    type: MusicRecording
    duration: PT1M33S
    duration ms: 93613
    explicit: false
    by artist: 棗坂シキ(CV.平川大輔)
    in album: Dance with Devils キャラクターシングル5 棗坂シキ
      type: MusicAlbum
      date published: 2015-11-25
    genre: anime
    isrc code: JPT551500082
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:22:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x23e55b9553f6ce184470232a36cd751a1655fcde538ca884a8757d3e85afa87c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPT551500082
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:36:27Z
    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 0x23e55b9553f6ce184470232a36cd751a1655fcde538ca884a8757d3e85afa87c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPT551500082.
      date published: 2026-07-12T21:36:27Z
    audio: 憐憫 揺籃歌
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.871
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.571
      additional property: Energy
        type: PropertyValue
        value: 0.805
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.144
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.294
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.521
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.853
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor