矢那木朔音 (CV：村瀬歩)
type: MusicGroup
popularity: 3
followers: 311
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xace7cbd785cdd741c7e86c6c970a04db5f22963eecd03af9136dce645392fae3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf7df385-3fd8-4d7f-81b2-c66acd4640cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf7df385-3fd8-4d7f-81b2-c66acd4640cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf7df385-3fd8-4d7f-81b2-c66acd4640cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xace7cbd785cdd741c7e86c6c970a04db5f22963eecd03af9136dce645392fae3","name":"矢那木朔音 (CV：村瀬歩)","registered_at":"2026-06-20T18:46:20Z","symbol":"NIM1682251","token_address":"0x2bf396f5d073ac9bdf3febeead2b8733d92d21b3","type":"artist","uuid":"bf7df385-3fd8-4d7f-81b2-c66acd4640cb"}
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 0xace7cbd785cdd741c7e86c6c970a04db5f22963eecd03af9136dce645392fae3. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf7df385-3fd8-4d7f-81b2-c66acd4640cb.json and https://artists.proofprofile.net/proofs/artist/bf7df385-3fd8-4d7f-81b2-c66acd4640cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xace7cbd785cdd741c7e86c6c970a04db5f22963eecd03af9136dce645392fae3","name":"矢那木朔音 (CV：村瀬歩)","registered_at":"2026-06-20T18:46:20Z","symbol":"NIM1682251","token_address":"0x2bf396f5d073ac9bdf3febeead2b8733d92d21b3","type":"artist","uuid":"bf7df385-3fd8-4d7f-81b2-c66acd4640cb"}
album: Grade skipping
  type: MusicAlbum
  date published: 2016-03-25
  track: Grade skipping
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217480
    explicit: false
    by artist: 矢那木朔音 (CV：村瀬歩)
    in album: Grade skipping
      type: MusicAlbum
      date published: 2016-03-25
    isrc code: TCJPH1870657
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a88ad4fe8475fa55e9fe2e4885aa04c57554809bcf2513e40230dcb2ef5fdbb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958897
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH1870657
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:57:46Z
    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 0x2a88ad4fe8475fa55e9fe2e4885aa04c57554809bcf2513e40230dcb2ef5fdbb. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCJPH1870657.
      date published: 2026-07-20T14:57:46Z
    audio: Grade skipping
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.011
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.684
      additional property: Energy
        type: PropertyValue
        value: 0.72
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.182
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.054
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.846
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.935
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Grade skipping (壁ドン!Version)
  type: MusicAlbum
  date published: 2016-03-25