切刃
type: MusicGroup
genre: j-rap
popularity: 3
followers: 359
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea5a7f6b2403511cea679fe72f0628485b3e49eff8ffc1d891758eca4d15cb21
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4646e05f-6546-489e-b43d-78b605cf617a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4646e05f-6546-489e-b43d-78b605cf617a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4646e05f-6546-489e-b43d-78b605cf617a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea5a7f6b2403511cea679fe72f0628485b3e49eff8ffc1d891758eca4d15cb21","name":"切刃","registered_at":"2026-06-16T14:03:36Z","symbol":"NIM1074764","token_address":"0x7a2c968c7ccd8bce108f10ac40dc9aaaba7109b6","type":"artist","uuid":"4646e05f-6546-489e-b43d-78b605cf617a"}
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 0xea5a7f6b2403511cea679fe72f0628485b3e49eff8ffc1d891758eca4d15cb21. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4646e05f-6546-489e-b43d-78b605cf617a.json and https://artists.proofprofile.net/proofs/artist/4646e05f-6546-489e-b43d-78b605cf617a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xea5a7f6b2403511cea679fe72f0628485b3e49eff8ffc1d891758eca4d15cb21","name":"切刃","registered_at":"2026-06-16T14:03:36Z","symbol":"NIM1074764","token_address":"0x7a2c968c7ccd8bce108f10ac40dc9aaaba7109b6","type":"artist","uuid":"4646e05f-6546-489e-b43d-78b605cf617a"}
album: Neurosis1988
  type: MusicAlbum
  date published: 2017-06-20
  track: サイコロ (feat. 唾奇 & ALEX)
    type: MusicRecording
    duration: PT4M28S
    duration ms: 268813
    explicit: false
    by artist: 切刃
    in album: Neurosis1988
      type: MusicAlbum
      date published: 2017-06-20
    genre: j-rap
    isrc code: TCJPG1884124
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:57:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdc18508979332d0deba480d7942bcc1ec4f857309db9b71e4974f1852f915cd3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG1884124
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xdc18508979332d0deba480d7942bcc1ec4f857309db9b71e4974f1852f915cd3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPG1884124.
      date published: 2026-07-05T10:01:46Z
    audio: サイコロ (feat. 唾奇 & ALEX)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.998
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.797
      additional property: Energy
        type: PropertyValue
        value: 0.869
      additional property: Speechiness
        type: PropertyValue
        value: 0.14
      additional property: Acousticness
        type: PropertyValue
        value: 0.632
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.295
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.541
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.503
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Only My Idea Is Best
  type: MusicAlbum
  date published: 2019-05-29
album: EVEN (feat. WONK)
  type: MusicAlbum
  date published: 2020-04-17
album: i kill
  type: MusicAlbum
  date published: 2022-03-30
album: キズ (feat. naz)
  type: MusicAlbum
  date published: 2022-05-18