霧島透子
type: MusicGroup
popularity: 25
followers: 200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2497f825917b4cae49402efa93aec5923d8a1125428332dee45e980880f9f573
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/5ea1de39-20ca-458e-b3b2-7fc7206d2ae9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ea1de39-20ca-458e-b3b2-7fc7206d2ae9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5ea1de39-20ca-458e-b3b2-7fc7206d2ae9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2497f825917b4cae49402efa93aec5923d8a1125428332dee45e980880f9f573","name":"霧島透子","registered_at":"2026-06-11T21:54:03Z","symbol":"NIM0121925","token_address":"0x7c1b744fa136df07aca7ac6f352befe24d4de03c","type":"artist","uuid":"5ea1de39-20ca-458e-b3b2-7fc7206d2ae9"}
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 0x2497f825917b4cae49402efa93aec5923d8a1125428332dee45e980880f9f573. 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/5ea1de39-20ca-458e-b3b2-7fc7206d2ae9.json and https://artists.proofprofile.net/proofs/artist/5ea1de39-20ca-458e-b3b2-7fc7206d2ae9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x2497f825917b4cae49402efa93aec5923d8a1125428332dee45e980880f9f573","name":"霧島透子","registered_at":"2026-06-11T21:54:03Z","symbol":"NIM0121925","token_address":"0x7c1b744fa136df07aca7ac6f352befe24d4de03c","type":"artist","uuid":"5ea1de39-20ca-458e-b3b2-7fc7206d2ae9"}
album: Social World Short Ver.
  type: MusicAlbum
  date published: 2025-05-18
album: Hilbert Space Short Ver.
  type: MusicAlbum
  date published: 2025-07-20
album: I need you Short Ver.
  type: MusicAlbum
  date published: 2025-08-17
album: Someone Short Ver.
  type: MusicAlbum
  date published: 2025-09-07
  track: Someone Short Ver.
    type: MusicRecording
    duration: PT1M33S
    duration ms: 93660
    explicit: false
    by artist: 霧島透子
    in album: Someone Short Ver.
      type: MusicAlbum
      date published: 2025-09-07
    isrc code: JPE302500700
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T08:09:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x88bb9dc6dd1756c0a6a5616b8b34d682004272b9e77ce4e5bfafa87a75e955d9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958384
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958384
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE302500700
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:27:02Z
    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 0x88bb9dc6dd1756c0a6a5616b8b34d682004272b9e77ce4e5bfafa87a75e955d9. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JPE302500700.
      date published: 2026-07-17T08:27:02Z
    audio: Someone Short Ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.299
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.309
      additional property: Energy
        type: PropertyValue
        value: 0.595
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.694
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.089
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.544
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Silent Night Short Ver.
  type: MusicAlbum
  date published: 2025-09-07
album: 水平線は僕の古傷 霧島透子 Short Ver.
  type: MusicAlbum
  date published: 2025-09-14