小林大吾
type: MusicGroup
genre: j-rap
popularity: 9
followers: 882
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeff8b9cfbf1c5b5a4ba27f393a2bdd9efa174361b52b5d5ddc76e836e95b187c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9856fe46-0917-436c-820a-55f99a3ec002.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9856fe46-0917-436c-820a-55f99a3ec002.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9856fe46-0917-436c-820a-55f99a3ec002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeff8b9cfbf1c5b5a4ba27f393a2bdd9efa174361b52b5d5ddc76e836e95b187c","name":"小林大吾","registered_at":"2026-06-17T18:50:14Z","symbol":"NIM1486622","token_address":"0xbdf31b2979d86d660c219feaa91e83bdec2efb7f","type":"artist","uuid":"9856fe46-0917-436c-820a-55f99a3ec002"}
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 0xeff8b9cfbf1c5b5a4ba27f393a2bdd9efa174361b52b5d5ddc76e836e95b187c. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9856fe46-0917-436c-820a-55f99a3ec002.json and https://artists.proofprofile.net/proofs/artist/9856fe46-0917-436c-820a-55f99a3ec002.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xeff8b9cfbf1c5b5a4ba27f393a2bdd9efa174361b52b5d5ddc76e836e95b187c","name":"小林大吾","registered_at":"2026-06-17T18:50:14Z","symbol":"NIM1486622","token_address":"0xbdf31b2979d86d660c219feaa91e83bdec2efb7f","type":"artist","uuid":"9856fe46-0917-436c-820a-55f99a3ec002"}
album: 1/8,000,000
  type: MusicAlbum
  date published: 2005
  track: 棘 tweezers
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215880
    explicit: false
    by artist: 小林大吾
    in album: 1/8,000,000
      type: MusicAlbum
      date published: 2005
    genre: j-rap
    isrc code: JPJ750501011
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T19:21:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xefaa43e5c5671379a708f156c835d8dc8aa4ad6083e22b51c512ed07fa25cad5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958447
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958447
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ750501011
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:47:19Z
    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 0xefaa43e5c5671379a708f156c835d8dc8aa4ad6083e22b51c512ed07fa25cad5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPJ750501011.
      date published: 2026-07-17T19:47:19Z
    audio: 棘 tweezers
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.445
      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: 0.753
      additional property: Energy
        type: PropertyValue
        value: 0.618
      additional property: Speechiness
        type: PropertyValue
        value: 0.071
      additional property: Acousticness
        type: PropertyValue
        value: 0.716
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.165
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.532
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.172
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 詩人の刻印
  type: MusicAlbum
  date published: 2007-11-07
album: オーディオビジュアル
  type: MusicAlbum
  date published: 2010-05-12
album: 小数点花手鑑
  type: MusicAlbum
  date published: 2014-07-02