Toshi Sakura
type: MusicGroup
genre: japanese classical
popularity: 4
followers: 250
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a8c09abcc2bf96318aa7eeef35ff32c0469a43a53fb28ea5edbfdf3b6a8e6e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a8c09abcc2bf96318aa7eeef35ff32c0469a43a53fb28ea5edbfdf3b6a8e6e4","name":"Toshi Sakura","registered_at":"2026-06-21T02:28:19Z","symbol":"NIM1791905","token_address":"0x96be1a39c22d770c310c705a7dce806866881471","type":"artist","uuid":"d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e"}
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 0x4a8c09abcc2bf96318aa7eeef35ff32c0469a43a53fb28ea5edbfdf3b6a8e6e4. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e.json and https://artists.proofprofile.net/proofs/artist/d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x4a8c09abcc2bf96318aa7eeef35ff32c0469a43a53fb28ea5edbfdf3b6a8e6e4","name":"Toshi Sakura","registered_at":"2026-06-21T02:28:19Z","symbol":"NIM1791905","token_address":"0x96be1a39c22d770c310c705a7dce806866881471","type":"artist","uuid":"d5b59a0e-f26a-427a-99b1-e9eafcbb8c5e"}
album: Tamiami
  type: MusicAlbum
  date published: 2020-04-28
  track: Tamiami
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157120
    explicit: false
    by artist: Toshi Sakura
    in album: Tamiami
      type: MusicAlbum
      date published: 2020-04-28
    genre: japanese classical
    isrc code: QZAKB2002523
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T00:34:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x10547b4942d9b3ac7684254306dc2a1552bbe32d93b1c92707997767b9c903ce
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2002523
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x10547b4942d9b3ac7684254306dc2a1552bbe32d93b1c92707997767b9c903ce. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB2002523 — a six-check JSON result.
      date published: 2026-07-04T10:04:33Z
    audio: Tamiami
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.027
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.03
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.978
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.919
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.187
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.273
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Simple Roses
  type: MusicAlbum
  date published: 2021-05-07
album: Regal Blue
  type: MusicAlbum
  date published: 2024-02-11