セイバー(cv:川澄綾子)
type: MusicGroup
popularity: 5
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x340508e63aeb3a4e276d776e98339bcac14763a51d919c67be2b67efd81c6905
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbce3cef-12a9-4cce-9d64-81a3049719c9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbce3cef-12a9-4cce-9d64-81a3049719c9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbce3cef-12a9-4cce-9d64-81a3049719c9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x340508e63aeb3a4e276d776e98339bcac14763a51d919c67be2b67efd81c6905","name":"セイバー(cv:川澄綾子)","registered_at":"2026-06-20T23:18:27Z","symbol":"NIM1746664","token_address":"0xfa4ab90dab53376e840055df0e7f049c6eb96b9a","type":"artist","uuid":"cbce3cef-12a9-4cce-9d64-81a3049719c9"}
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 0x340508e63aeb3a4e276d776e98339bcac14763a51d919c67be2b67efd81c6905. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbce3cef-12a9-4cce-9d64-81a3049719c9.json and https://artists.proofprofile.net/proofs/artist/cbce3cef-12a9-4cce-9d64-81a3049719c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x340508e63aeb3a4e276d776e98339bcac14763a51d919c67be2b67efd81c6905","name":"セイバー(cv:川澄綾子)","registered_at":"2026-06-20T23:18:27Z","symbol":"NIM1746664","token_address":"0xfa4ab90dab53376e840055df0e7f049c6eb96b9a","type":"artist","uuid":"cbce3cef-12a9-4cce-9d64-81a3049719c9"}
album: Fate/stay night Character Image Song1
  type: MusicAlbum
  date published: 2006-12-27
  track: 遠い夢
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282666
    explicit: false
    by artist: セイバー(cv:川澄綾子)
    in album: Fate/stay night Character Image Song1
      type: MusicAlbum
      date published: 2006-12-27
    isrc code: JPPI00658280
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T12:50:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31feb99351d93a861c040d2bb6fe8ec735b9c9778d7afad9b25f453344fbb060
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00658280
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T13:33:01Z
    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 0x31feb99351d93a861c040d2bb6fe8ec735b9c9778d7afad9b25f453344fbb060. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/JPPI00658280.
      date published: 2026-07-17T13:33:01Z
    audio: 遠い夢
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.125
      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: 0.478
      additional property: Energy
        type: PropertyValue
        value: 0.437
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.055
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.221
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.463
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.371
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Fate／stay night キャラクターイメージソング (Ⅰ：セイバー（川澄綾子))
  type: MusicAlbum
  date published: 2006-12-27