竹越ひろ子
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 5
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa7d0bf000cb0d207915bd80ad9099d8633f4452331b43b23f2c82c7cd80d7e19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89514f73-cd7c-45b2-af84-4b8cf1485472.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89514f73-cd7c-45b2-af84-4b8cf1485472.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/89514f73-cd7c-45b2-af84-4b8cf1485472
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa7d0bf000cb0d207915bd80ad9099d8633f4452331b43b23f2c82c7cd80d7e19","name":"竹越ひろ子","registered_at":"2026-06-17T13:34:08Z","symbol":"NIM1411171","token_address":"0xd0e1e24fa7d73f2419ab9cc1a8b54506ad6541f2","type":"artist","uuid":"89514f73-cd7c-45b2-af84-4b8cf1485472"}
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 0xa7d0bf000cb0d207915bd80ad9099d8633f4452331b43b23f2c82c7cd80d7e19. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89514f73-cd7c-45b2-af84-4b8cf1485472.json and https://artists.proofprofile.net/proofs/artist/89514f73-cd7c-45b2-af84-4b8cf1485472.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa7d0bf000cb0d207915bd80ad9099d8633f4452331b43b23f2c82c7cd80d7e19","name":"竹越ひろ子","registered_at":"2026-06-17T13:34:08Z","symbol":"NIM1411171","token_address":"0xd0e1e24fa7d73f2419ab9cc1a8b54506ad6541f2","type":"artist","uuid":"89514f73-cd7c-45b2-af84-4b8cf1485472"}
album: Summer Blue / Same Ni Kuwareta Musume
  type: MusicAlbum
  date published: 1972-08-10
album: サマー・ブルー／サメに喰われた娘
  type: MusicAlbum
  date published: 1972-08-10
album: 決定版 竹越ひろ子
  type: MusicAlbum
  date published: 2023-12-06
  track: 東京流れもの
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157626
    explicit: false
    by artist: 竹越ひろ子
    in album: 決定版 竹越ひろ子
      type: MusicAlbum
      date published: 2023-12-06
    genre: enka
    genre: kayokyoku
    isrc code: JPKI06427574
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T19:56:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe375e27d145918b16d2c2f13854119df7bed177781102209dd872b7fb5484803
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI06427574
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0xe375e27d145918b16d2c2f13854119df7bed177781102209dd872b7fb5484803. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPKI06427574.
      date published: 2026-07-03T21:18:05Z
    audio: 東京流れもの
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.86
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.411
      additional property: Energy
        type: PropertyValue
        value: 0.303
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.855
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.137
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.554
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.835
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor