小糸 侑(CV:高田憂希)
type: MusicGroup
genre: anime
popularity: 21
followers: 397
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf632e38455bd359a849d5c6f48a850cddfd320a4f92e6f5440b53febc4dde657
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fef3cee-11f6-423d-9aca-f206a52a5760.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fef3cee-11f6-423d-9aca-f206a52a5760.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1fef3cee-11f6-423d-9aca-f206a52a5760
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf632e38455bd359a849d5c6f48a850cddfd320a4f92e6f5440b53febc4dde657","name":"小糸 侑(CV:高田憂希)","registered_at":"2026-06-11T13:57:23Z","symbol":"NIM0041725","token_address":"0x08b64a528c67ff0285f40b259d4d2c0ac108a0c9","type":"artist","uuid":"1fef3cee-11f6-423d-9aca-f206a52a5760"}
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 0xf632e38455bd359a849d5c6f48a850cddfd320a4f92e6f5440b53febc4dde657. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fef3cee-11f6-423d-9aca-f206a52a5760.json and https://artists.proofprofile.net/proofs/artist/1fef3cee-11f6-423d-9aca-f206a52a5760.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xf632e38455bd359a849d5c6f48a850cddfd320a4f92e6f5440b53febc4dde657","name":"小糸 侑(CV:高田憂希)","registered_at":"2026-06-11T13:57:23Z","symbol":"NIM0041725","token_address":"0x08b64a528c67ff0285f40b259d4d2c0ac108a0c9","type":"artist","uuid":"1fef3cee-11f6-423d-9aca-f206a52a5760"}
album: TVアニメ「やがて君になる」エンディングテーマ「hectopascal」
  type: MusicAlbum
  date published: 2018-11-28
album: TVアニメ「やがて君になる」エンディングテーマ「hectopascal」
  type: MusicAlbum
  date published: 2018-11-28
  track: 好き、以外の言葉で
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254960
    explicit: false
    by artist: 小糸 侑(CV:高田憂希)
    in album: TVアニメ「やがて君になる」エンディングテーマ「hectopascal」
      type: MusicAlbum
      date published: 2018-11-28
    genre: anime
    isrc code: JPD731800516
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:39:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6bfff953bfb7f17d5e395fbca8d0ec433f0acd1351b7cd2e69f9f495bebd26c8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958325
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958325
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD731800516
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:42:38Z
    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 0x6bfff953bfb7f17d5e395fbca8d0ec433f0acd1351b7cd2e69f9f495bebd26c8. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:38Z), 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/JPD731800516.
      date published: 2026-07-16T23:42:38Z
    audio: 好き、以外の言葉で
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.997
      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: 0.597
      additional property: Energy
        type: PropertyValue
        value: 0.937
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.424
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.266
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.801
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.898
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major