赤城(CV.中原麻衣)
type: MusicGroup
genre: anime
popularity: 11
followers: 332
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9af6aacb6c4b5a7ee354cd3ef4ff11b267cdede7afb4ed84c5622cc1dfc7e999
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953743
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953743
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a359f1fe-c182-413a-80a1-d15ae0edd04a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a359f1fe-c182-413a-80a1-d15ae0edd04a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a359f1fe-c182-413a-80a1-d15ae0edd04a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:52:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9af6aacb6c4b5a7ee354cd3ef4ff11b267cdede7afb4ed84c5622cc1dfc7e999","name":"赤城(CV.中原麻衣)","registered_at":"2026-06-14T21:37:10Z","symbol":"NIM0583881","token_address":"0xc290f8b3e7a7db9dec9341b12b22b73cebeb2759","type":"artist","uuid":"a359f1fe-c182-413a-80a1-d15ae0edd04a"}
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 0x9af6aacb6c4b5a7ee354cd3ef4ff11b267cdede7afb4ed84c5622cc1dfc7e999. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a359f1fe-c182-413a-80a1-d15ae0edd04a.json and https://artists.proofprofile.net/proofs/artist/a359f1fe-c182-413a-80a1-d15ae0edd04a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:52:01Z
  text: {"copyright_id":"0x9af6aacb6c4b5a7ee354cd3ef4ff11b267cdede7afb4ed84c5622cc1dfc7e999","name":"赤城(CV.中原麻衣)","registered_at":"2026-06-14T21:37:10Z","symbol":"NIM0583881","token_address":"0xc290f8b3e7a7db9dec9341b12b22b73cebeb2759","type":"artist","uuid":"a359f1fe-c182-413a-80a1-d15ae0edd04a"}
album: TVアニメーション『アズールレーン』キャラクターソングシングル Vol.9 赤城
  type: MusicAlbum
  date published: 2020-01-15
  track: 悠久のカタルシス - 赤城 ver.
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257586
    explicit: false
    by artist: 赤城(CV.中原麻衣)
    in album: TVアニメーション『アズールレーン』キャラクターソングシングル Vol.9 赤城
      type: MusicAlbum
      date published: 2020-01-15
    genre: anime
    isrc code: JPW670100129
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T00:18:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc8d9d9f7933e074476526756bc6708f14c10946e5af68cd0c40442bc3eb39bc1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW670100129
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xc8d9d9f7933e074476526756bc6708f14c10946e5af68cd0c40442bc3eb39bc1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPW670100129.
      date published: 2026-07-04T11:19:20Z
    audio: 悠久のカタルシス - 赤城 ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.043
      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: 0.473
      additional property: Energy
        type: PropertyValue
        value: 0.915
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.628
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.085
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major