桜庭涼太(CV:山下大輝)
type: MusicGroup
popularity: 12
followers: 635
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x538aa64162aa2a52b309f095d4d54227cb36845991579d8529631595af7cf998
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4551ae12-273d-44cf-a9cb-0b1d1fbef675.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4551ae12-273d-44cf-a9cb-0b1d1fbef675.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4551ae12-273d-44cf-a9cb-0b1d1fbef675
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x538aa64162aa2a52b309f095d4d54227cb36845991579d8529631595af7cf998","name":"桜庭涼太(CV:山下大輝)","registered_at":"2026-06-14T11:45:21Z","symbol":"NIM0442725","token_address":"0xcdb860bed4323dafda361975eb79813d0b4cd776","type":"artist","uuid":"4551ae12-273d-44cf-a9cb-0b1d1fbef675"}
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 0x538aa64162aa2a52b309f095d4d54227cb36845991579d8529631595af7cf998. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4551ae12-273d-44cf-a9cb-0b1d1fbef675.json and https://artists.proofprofile.net/proofs/artist/4551ae12-273d-44cf-a9cb-0b1d1fbef675.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x538aa64162aa2a52b309f095d4d54227cb36845991579d8529631595af7cf998","name":"桜庭涼太(CV:山下大輝)","registered_at":"2026-06-14T11:45:21Z","symbol":"NIM0442725","token_address":"0xcdb860bed4323dafda361975eb79813d0b4cd776","type":"artist","uuid":"4551ae12-273d-44cf-a9cb-0b1d1fbef675"}
album: ALIVE「あの頃の僕らは」シリーズ・桜庭涼太「ファンタズマゴリア」
  type: MusicAlbum
  date published: 2022-11-25
  track: ファンタズマゴリア
    type: MusicRecording
    duration: PT5M46S
    duration ms: 346333
    explicit: false
    by artist: 桜庭涼太(CV:山下大輝)
    in album: ALIVE「あの頃の僕らは」シリーズ・桜庭涼太「ファンタズマゴリア」
      type: MusicAlbum
      date published: 2022-11-25
    isrc code: JPR502207301
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:41:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8282ca4d29e0efbfb3a5e9a22e3d94554f88ca02c64042c3eea0292c7a0077f2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPR502207301
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:26Z
    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 0x8282ca4d29e0efbfb3a5e9a22e3d94554f88ca02c64042c3eea0292c7a0077f2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPR502207301.
      date published: 2026-07-17T00:53:26Z
    audio: ファンタズマゴリア
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.037
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.43
      additional property: Energy
        type: PropertyValue
        value: 0.751
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.626
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.295
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.411
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.701
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major