国仲 涼子
type: MusicGroup
popularity: 3
followers: 122
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0668e5afd1f2bced2debb39f822be1ef4810ad3f16a6f5ac8e3cf5f470d82891
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/8d0ae813-ce3c-44d4-afcd-88eb2071d85a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d0ae813-ce3c-44d4-afcd-88eb2071d85a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8d0ae813-ce3c-44d4-afcd-88eb2071d85a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0668e5afd1f2bced2debb39f822be1ef4810ad3f16a6f5ac8e3cf5f470d82891","name":"国仲 涼子","registered_at":"2026-06-17T14:48:38Z","symbol":"NIM1428944","token_address":"0xaa108ec8b96ec8bdfb00aaaa0a430f22cffa9d57","type":"artist","uuid":"8d0ae813-ce3c-44d4-afcd-88eb2071d85a"}
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 0x0668e5afd1f2bced2debb39f822be1ef4810ad3f16a6f5ac8e3cf5f470d82891. 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/8d0ae813-ce3c-44d4-afcd-88eb2071d85a.json and https://artists.proofprofile.net/proofs/artist/8d0ae813-ce3c-44d4-afcd-88eb2071d85a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x0668e5afd1f2bced2debb39f822be1ef4810ad3f16a6f5ac8e3cf5f470d82891","name":"国仲 涼子","registered_at":"2026-06-17T14:48:38Z","symbol":"NIM1428944","token_address":"0xaa108ec8b96ec8bdfb00aaaa0a430f22cffa9d57","type":"artist","uuid":"8d0ae813-ce3c-44d4-afcd-88eb2071d85a"}
album: ふるさと
  type: MusicAlbum
  date published: 2004-02-18
  track: 琉球ムーン
    type: MusicRecording
    duration: PT5M0S
    duration ms: 300706
    explicit: false
    by artist: 国仲 涼子
    in album: ふるさと
      type: MusicAlbum
      date published: 2004-02-18
    isrc code: JPPC00400018
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T17:32:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeaba178c4de447465db55ff9708d2c60fa8a8d30f163313ec1728ba61e70f0f4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC00400018
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0xeaba178c4de447465db55ff9708d2c60fa8a8d30f163313ec1728ba61e70f0f4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPPC00400018.
      date published: 2026-07-18T19:27:02Z
    audio: 琉球ムーン
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.914
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.483
      additional property: Energy
        type: PropertyValue
        value: 0.629
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.247
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.227
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.6
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.038
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: めぐり逢えたね
  type: MusicAlbum
  date published: 2004-09-29