MILGRAM シドウ (CV: 仲村宗悟)
type: MusicGroup
genre: vocaloid
popularity: 31
followers: 7934
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b3971f4b2d2f73713b6b44ce2e0fa7f0507f4f7d9b1b2a332b9b90ff9f7aea5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/940b9042-7240-4627-ac2d-92cbcb91d00b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/940b9042-7240-4627-ac2d-92cbcb91d00b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/940b9042-7240-4627-ac2d-92cbcb91d00b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7b3971f4b2d2f73713b6b44ce2e0fa7f0507f4f7d9b1b2a332b9b90ff9f7aea5","name":"MILGRAM シドウ (CV: 仲村宗悟)","registered_at":"2026-06-12T04:50:10Z","symbol":"NIM0191863","token_address":"0x74432f2e5df30b33e7afe724712ed6968be72e42","type":"artist","uuid":"940b9042-7240-4627-ac2d-92cbcb91d00b"}
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 0x7b3971f4b2d2f73713b6b44ce2e0fa7f0507f4f7d9b1b2a332b9b90ff9f7aea5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/940b9042-7240-4627-ac2d-92cbcb91d00b.json and https://artists.proofprofile.net/proofs/artist/940b9042-7240-4627-ac2d-92cbcb91d00b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x7b3971f4b2d2f73713b6b44ce2e0fa7f0507f4f7d9b1b2a332b9b90ff9f7aea5","name":"MILGRAM シドウ (CV: 仲村宗悟)","registered_at":"2026-06-12T04:50:10Z","symbol":"NIM0191863","token_address":"0x74432f2e5df30b33e7afe724712ed6968be72e42","type":"artist","uuid":"940b9042-7240-4627-ac2d-92cbcb91d00b"}
album: スローダウン
  type: MusicAlbum
  date published: 2020-12-11
album: Triage
  type: MusicAlbum
  date published: 2023-03-22
  track: Triage - Instrumental
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177272
    explicit: false
    by artist: MILGRAM シドウ (CV: 仲村宗悟)
    in album: Triage
      type: MusicAlbum
      date published: 2023-03-22
    genre: vocaloid
    isrc code: JPZ922211576
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T16:53:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4bd673cc29897f8a2c2048ee44f3b834cf74e9e626d1db12feb521156f24bda4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958917
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958917
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ922211576
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T19:56:08Z
    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 0x4bd673cc29897f8a2c2048ee44f3b834cf74e9e626d1db12feb521156f24bda4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:56:08Z), 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/JPZ922211576.
      date published: 2026-07-20T19:56:08Z
    audio: Triage - Instrumental
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.024
      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: 0.639
      additional property: Energy
        type: PropertyValue
        value: 0.728
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.858
      additional property: Liveness
        type: PropertyValue
        value: 0.055
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.392
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.666
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: トリアージ
  type: MusicAlbum
  date published: 2023-03-22