Nao Nakashima
type: MusicGroup
popularity: 2
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cead96322934ccd37cf7aec1c29796fbe5c66b4741de7fadacb7aa378ca8f37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12dbcf77-77e0-4885-8301-fc3dd7fe04ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12dbcf77-77e0-4885-8301-fc3dd7fe04ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/12dbcf77-77e0-4885-8301-fc3dd7fe04ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cead96322934ccd37cf7aec1c29796fbe5c66b4741de7fadacb7aa378ca8f37","name":"Nao Nakashima","registered_at":"2026-06-15T20:11:07Z","symbol":"NIM0818760","token_address":"0xe1d1727a4db78f8257b8465bb48b31dfae927e59","type":"artist","uuid":"12dbcf77-77e0-4885-8301-fc3dd7fe04ce"}
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 0x2cead96322934ccd37cf7aec1c29796fbe5c66b4741de7fadacb7aa378ca8f37. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12dbcf77-77e0-4885-8301-fc3dd7fe04ce.json and https://artists.proofprofile.net/proofs/artist/12dbcf77-77e0-4885-8301-fc3dd7fe04ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x2cead96322934ccd37cf7aec1c29796fbe5c66b4741de7fadacb7aa378ca8f37","name":"Nao Nakashima","registered_at":"2026-06-15T20:11:07Z","symbol":"NIM0818760","token_address":"0xe1d1727a4db78f8257b8465bb48b31dfae927e59","type":"artist","uuid":"12dbcf77-77e0-4885-8301-fc3dd7fe04ce"}
album: Bad Attitude
  type: MusicAlbum
  date published: 2024-01-31
album: Let's Kill Rock 'n' Roll
  type: MusicAlbum
  date published: 2025-01-04
  track: Let's Kill Rock 'n' Roll
    type: MusicRecording
    duration: PT3M54S
    duration ms: 234500
    explicit: false
    by artist: Nao Nakashima
    in album: Let's Kill Rock 'n' Roll
      type: MusicAlbum
      date published: 2025-01-04
    isrc code: TCAJB2427585
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:03:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x886d76122b7a38e744677b658a4095df9bf3e188b362b7420fc68d78d02a6b93
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJB2427585
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:05:27Z
    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 0x886d76122b7a38e744677b658a4095df9bf3e188b362b7420fc68d78d02a6b93. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:05:27Z), 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/TCAJB2427585.
      date published: 2026-07-19T16:05:27Z
    audio: Let's Kill Rock 'n' Roll
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 172.044
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.434
      additional property: Energy
        type: PropertyValue
        value: 0.975
      additional property: Speechiness
        type: PropertyValue
        value: 0.095
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.55
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.458
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major