加賀爪タッド
type: MusicGroup
popularity: 7
followers: 70
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb85f7928a37c87ef93fd14351b889f9806e4b869f7f43967b30eee9e4fa81f5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a8a6221-b65f-4c66-8451-09719b2ac395.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a8a6221-b65f-4c66-8451-09719b2ac395.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a8a6221-b65f-4c66-8451-09719b2ac395
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb85f7928a37c87ef93fd14351b889f9806e4b869f7f43967b30eee9e4fa81f5","name":"加賀爪タッド","registered_at":"2026-06-17T08:16:55Z","symbol":"NIM1335595","token_address":"0xca26593ce157f3d0453e3b91d34ea1e0f205ec8b","type":"artist","uuid":"7a8a6221-b65f-4c66-8451-09719b2ac395"}
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 0xdb85f7928a37c87ef93fd14351b889f9806e4b869f7f43967b30eee9e4fa81f5. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a8a6221-b65f-4c66-8451-09719b2ac395.json and https://artists.proofprofile.net/proofs/artist/7a8a6221-b65f-4c66-8451-09719b2ac395.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0xdb85f7928a37c87ef93fd14351b889f9806e4b869f7f43967b30eee9e4fa81f5","name":"加賀爪タッド","registered_at":"2026-06-17T08:16:55Z","symbol":"NIM1335595","token_address":"0xca26593ce157f3d0453e3b91d34ea1e0f205ec8b","type":"artist","uuid":"7a8a6221-b65f-4c66-8451-09719b2ac395"}
album: Perfect Propose ORIGINAL SOUNDTRACK
  type: MusicAlbum
  date published: 2024-02-28
album: ドラマ「パーフェクトプロポーズ」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2024-02-28
  track: perfect propose
    type: MusicRecording
    duration: PT1M42S
    duration ms: 102680
    explicit: false
    by artist: 加賀爪タッド
    in album: ドラマ「パーフェクトプロポーズ」オリジナル・サウンドトラック
      type: MusicAlbum
      date published: 2024-02-28
    isrc code: JPVP02400615
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:30:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x70bfb0eb8c2129ff5c7bb8193582b7dd1b4c44fe4580bbe7a91ecfc1a4d74487
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958839
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958839
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP02400615
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:33:39Z
    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 0x70bfb0eb8c2129ff5c7bb8193582b7dd1b4c44fe4580bbe7a91ecfc1a4d74487. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:33:39Z), 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/JPVP02400615.
      date published: 2026-07-20T09:33:39Z
    audio: perfect propose
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.023
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.533
      additional property: Energy
        type: PropertyValue
        value: 0.344
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.808
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.966
      additional property: Liveness
        type: PropertyValue
        value: 0.35
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.224
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.516
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major