河辺千恵子
type: MusicGroup
genre: anime
popularity: 33
followers: 2095
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b017cf66b658073ca3e0428dc14de6e1993de98969e0ca3c822928ebd18d204
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/41c1aa60-65ce-4bde-b3a7-a7a5d418b17c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41c1aa60-65ce-4bde-b3a7-a7a5d418b17c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41c1aa60-65ce-4bde-b3a7-a7a5d418b17c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7b017cf66b658073ca3e0428dc14de6e1993de98969e0ca3c822928ebd18d204","name":"河辺千恵子","registered_at":"2026-06-11T17:45:38Z","symbol":"NIM0085383","token_address":"0x946778372080fb4a80e4a378c1549882b2b398b4","type":"artist","uuid":"41c1aa60-65ce-4bde-b3a7-a7a5d418b17c"}
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 0x7b017cf66b658073ca3e0428dc14de6e1993de98969e0ca3c822928ebd18d204. 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/41c1aa60-65ce-4bde-b3a7-a7a5d418b17c.json and https://artists.proofprofile.net/proofs/artist/41c1aa60-65ce-4bde-b3a7-a7a5d418b17c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x7b017cf66b658073ca3e0428dc14de6e1993de98969e0ca3c822928ebd18d204","name":"河辺千恵子","registered_at":"2026-06-11T17:45:38Z","symbol":"NIM0085383","token_address":"0x946778372080fb4a80e4a378c1549882b2b398b4","type":"artist","uuid":"41c1aa60-65ce-4bde-b3a7-a7a5d418b17c"}
album: be your girl
  type: MusicAlbum
  date published: 2004-04-28
album: be your girl
  type: MusicAlbum
  date published: 2004-04-28
album: Shining!/cry baby
  type: MusicAlbum
  date published: 2004-11-25
album: Shining!/cry baby
  type: MusicAlbum
  date published: 2004-11-25
album: 絆色
  type: MusicAlbum
  date published: 2005-01-26
album: Kizunairo
  type: MusicAlbum
  date published: 2005-01-26
album: brilliance
  type: MusicAlbum
  date published: 2005-03-16
album: brilliance
  type: MusicAlbum
  date published: 2005-03-16
album: キャンディベイベー/マーマメード
  type: MusicAlbum
  date published: 2005-07-21
album: Candy Baby/Marmamade
  type: MusicAlbum
  date published: 2005-07-21
album: 桜キッス
  type: MusicAlbum
  date published: 2006-04-26
album: Sakura Kiss
  type: MusicAlbum
  date published: 2006-04-26
  track: Sakura Kiss
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225493
    explicit: false
    by artist: 河辺千恵子
    in album: Sakura Kiss
      type: MusicAlbum
      date published: 2006-04-26
    genre: anime
    isrc code: JPVP00601201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:58:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x23881f39fd2b0faf1b2f33c843108c7b49f5ba2f583024fd568140289f3e840a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP00601201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T04:29:18Z
    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 0x23881f39fd2b0faf1b2f33c843108c7b49f5ba2f583024fd568140289f3e840a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/JPVP00601201.
      date published: 2026-07-20T04:29:18Z
    audio: Sakura Kiss
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 166.007
      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: 0.542
      additional property: Energy
        type: PropertyValue
        value: 0.879
      additional property: Speechiness
        type: PropertyValue
        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0.025
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.528
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.067
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major