Casual Toast
type: MusicGroup
popularity: 4
followers: 161
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ae10866493bfb156efc6ddbb291aca62d2459135f120847afb64249527b82b1
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/698462b3-797a-4be4-ba69-4115475e0fc1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/698462b3-797a-4be4-ba69-4115475e0fc1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/698462b3-797a-4be4-ba69-4115475e0fc1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ae10866493bfb156efc6ddbb291aca62d2459135f120847afb64249527b82b1","name":"Casual Toast","registered_at":"2026-06-17T02:15:59Z","symbol":"NIM1249507","token_address":"0x8c7a78598ec646f8bafac05bc19f891313cb1c72","type":"artist","uuid":"698462b3-797a-4be4-ba69-4115475e0fc1"}
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 0x2ae10866493bfb156efc6ddbb291aca62d2459135f120847afb64249527b82b1. 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/698462b3-797a-4be4-ba69-4115475e0fc1.json and https://artists.proofprofile.net/proofs/artist/698462b3-797a-4be4-ba69-4115475e0fc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2ae10866493bfb156efc6ddbb291aca62d2459135f120847afb64249527b82b1","name":"Casual Toast","registered_at":"2026-06-17T02:15:59Z","symbol":"NIM1249507","token_address":"0x8c7a78598ec646f8bafac05bc19f891313cb1c72","type":"artist","uuid":"698462b3-797a-4be4-ba69-4115475e0fc1"}
album: FAWAFEM
  type: MusicAlbum
  date published: 2019-03-29
album: Every Heart (From "Inuyasha")
  type: MusicAlbum
  date published: 2020-10-23
album: sakura
  type: MusicAlbum
  date published: 2020-11-27
album: 絵空事
  type: MusicAlbum
  date published: 2021-03-17
album: The Light Before We Land
  type: MusicAlbum
  date published: 2021-04-12
album: ダイアの花 (From "BLACK CAT")
  type: MusicAlbum
  date published: 2021-10-13
  track: ダイアの花 (From "BLACK CAT")
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214200
    explicit: false
    by artist: Casual Toast
    in album: ダイアの花 (From "BLACK CAT")
      type: MusicAlbum
      date published: 2021-10-13
    isrc code: QZPJ32115638
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T23:33:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3402a1dac2d030fe415ea8d2c2fd4ca3b4fb9e37357a11d9fd8387a5962729c4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958631
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958631
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32115638
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:50:09Z
    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 0x3402a1dac2d030fe415ea8d2c2fd4ca3b4fb9e37357a11d9fd8387a5962729c4. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZPJ32115638.
      date published: 2026-07-19T00:50:09Z
    audio: ダイアの花 (From "BLACK CAT")
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.951
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.449
      additional property: Energy
        type: PropertyValue
        value: 0.945
      additional property: Speechiness
        type: PropertyValue
        value: 0.083
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.345
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.512
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.963
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Magia (From "Madoka Magica")
  type: MusicAlbum
  date published: 2021-10-22