宇崎花(CV. 大空直美)
type: MusicGroup
genre: anime
popularity: 3
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8f8250ddf7e4a4c44f360c168fd023fc3cb98604fd32d2447471a96c53b93d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/796ef5f6-7202-4d26-98ef-a03f31f67c0c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/796ef5f6-7202-4d26-98ef-a03f31f67c0c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/796ef5f6-7202-4d26-98ef-a03f31f67c0c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc8f8250ddf7e4a4c44f360c168fd023fc3cb98604fd32d2447471a96c53b93d1","name":"宇崎花(CV. 大空直美)","registered_at":"2026-06-17T08:21:32Z","symbol":"NIM1336699","token_address":"0x2ccd496f4dac7f5626e3c1bc5a6853572fbbf47f","type":"artist","uuid":"796ef5f6-7202-4d26-98ef-a03f31f67c0c"}
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 0xc8f8250ddf7e4a4c44f360c168fd023fc3cb98604fd32d2447471a96c53b93d1. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/796ef5f6-7202-4d26-98ef-a03f31f67c0c.json and https://artists.proofprofile.net/proofs/artist/796ef5f6-7202-4d26-98ef-a03f31f67c0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0xc8f8250ddf7e4a4c44f360c168fd023fc3cb98604fd32d2447471a96c53b93d1","name":"宇崎花(CV. 大空直美)","registered_at":"2026-06-17T08:21:32Z","symbol":"NIM1336699","token_address":"0x2ccd496f4dac7f5626e3c1bc5a6853572fbbf47f","type":"artist","uuid":"796ef5f6-7202-4d26-98ef-a03f31f67c0c"}