砕糖おわり
type: MusicGroup
genre: vocaloid
popularity: 3
followers: 112
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6aa3f0ab48cea81687b70099bd65c38d3295aa26cab7cc147db903073f62134d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53c3db7a-7f5a-4750-be50-a061b9585f2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53c3db7a-7f5a-4750-be50-a061b9585f2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53c3db7a-7f5a-4750-be50-a061b9585f2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6aa3f0ab48cea81687b70099bd65c38d3295aa26cab7cc147db903073f62134d","name":"砕糖おわり","registered_at":"2026-06-16T18:43:53Z","symbol":"NIM1141641","token_address":"0x5dbe2e5ee06b1d67e6202e3f106c4114c3fa0eba","type":"artist","uuid":"53c3db7a-7f5a-4750-be50-a061b9585f2c"}
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 0x6aa3f0ab48cea81687b70099bd65c38d3295aa26cab7cc147db903073f62134d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53c3db7a-7f5a-4750-be50-a061b9585f2c.json and https://artists.proofprofile.net/proofs/artist/53c3db7a-7f5a-4750-be50-a061b9585f2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x6aa3f0ab48cea81687b70099bd65c38d3295aa26cab7cc147db903073f62134d","name":"砕糖おわり","registered_at":"2026-06-16T18:43:53Z","symbol":"NIM1141641","token_address":"0x5dbe2e5ee06b1d67e6202e3f106c4114c3fa0eba","type":"artist","uuid":"53c3db7a-7f5a-4750-be50-a061b9585f2c"}
album: おやすみパラリシス
  type: MusicAlbum
  date published: 2024-08-08
album: のろいのももいろ
  type: MusicAlbum
  date published: 2025-03-02
  track: のろいのももいろ
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161250
    explicit: false
    by artist: 砕糖おわり
    in album: のろいのももいろ
      type: MusicAlbum
      date published: 2025-03-02
    genre: vocaloid
    isrc code: TCJPE2525731
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:36:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5d619ed7ea66c4d57c57a5a0d9df8015946de1da7110b9b2d263c6330e0ffa4b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958876
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958876
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2525731
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:15:48Z
    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 0x5d619ed7ea66c4d57c57a5a0d9df8015946de1da7110b9b2d263c6330e0ffa4b. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCJPE2525731.
      date published: 2026-07-20T12:15:48Z
    audio: のろいのももいろ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.014
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.717
      additional property: Energy
        type: PropertyValue
        value: 0.94
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.069
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.168
      additional property: Liveness
        type: PropertyValue
        value: 0.301
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.969
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.049
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor