純名里沙
type: MusicGroup
genre: enka
genre: kayokyoku
genre: vocal jazz
popularity: 5
followers: 338
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x687e1f5a8e5fdbd38b6b8037ec3a9a6fd4cce0eca893e1526e897c7f45b9db64
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adafcd0e-9ab3-4ddb-9089-27191986be09.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adafcd0e-9ab3-4ddb-9089-27191986be09.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adafcd0e-9ab3-4ddb-9089-27191986be09
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x687e1f5a8e5fdbd38b6b8037ec3a9a6fd4cce0eca893e1526e897c7f45b9db64","name":"純名里沙","registered_at":"2026-06-20T10:54:23Z","symbol":"NIM1595404","token_address":"0x566a7f3753118bb5c0d77b5de0c1175b174e401c","type":"artist","uuid":"adafcd0e-9ab3-4ddb-9089-27191986be09"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687e1f5a8e5fdbd38b6b8037ec3a9a6fd4cce0eca893e1526e897c7f45b9db64. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adafcd0e-9ab3-4ddb-9089-27191986be09.json and https://artists.proofprofile.net/proofs/artist/adafcd0e-9ab3-4ddb-9089-27191986be09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x687e1f5a8e5fdbd38b6b8037ec3a9a6fd4cce0eca893e1526e897c7f45b9db64","name":"純名里沙","registered_at":"2026-06-20T10:54:23Z","symbol":"NIM1595404","token_address":"0x566a7f3753118bb5c0d77b5de0c1175b174e401c","type":"artist","uuid":"adafcd0e-9ab3-4ddb-9089-27191986be09"}
album: ぴあの
  type: MusicAlbum
  date published: 1994-08-10
album: Propose
  type: MusicAlbum
  date published: 1995
  track: Meguru Kisetsu
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211333
    explicit: false
    by artist: 純名里沙
    in album: Propose
      type: MusicAlbum
      date published: 1995
    genre: enka
    genre: kayokyoku
    genre: vocal jazz
    isrc code: JPMR09511540
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:25:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3b787cef33e17ba5981d1f0f57b8679bb3522c153897f1a701fbff9b0c3cf08b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPMR09511540
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b787cef33e17ba5981d1f0f57b8679bb3522c153897f1a701fbff9b0c3cf08b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPMR09511540.
      date published: 2026-07-05T01:12:41Z
    audio: Meguru Kisetsu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.986
      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: 0.687
      additional property: Energy
        type: PropertyValue
        value: 0.622
      additional property: Speechiness
        type: PropertyValue
        value: 0.024
      additional property: Acousticness
        type: PropertyValue
        value: 0.626
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.379
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.758
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.596
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Propose
  type: MusicAlbum
  date published: 1995-09-21
album: ミスティ・ムーン
  type: MusicAlbum
  date published: 2007-08-22
album: Silent Love ～あなたを想う12の歌～
  type: MusicAlbum
  date published: 2015-10-21
album: 「う・た・が・た・り」
  type: MusicAlbum
  date published: 2018-03-14