大室花子 (CV.日高里菜)
type: MusicGroup
genre: anime
genre: shibuya-kei
popularity: 7
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71414574d76a9d474ebe3238cd891cea3f03b065a5e2e70283e8da3840f057b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4440dcc-491a-441e-abbd-51779262f942.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4440dcc-491a-441e-abbd-51779262f942.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f4440dcc-491a-441e-abbd-51779262f942
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x71414574d76a9d474ebe3238cd891cea3f03b065a5e2e70283e8da3840f057b8","name":"大室花子 (CV.日高里菜)","registered_at":"2026-06-21T14:37:28Z","symbol":"NIM1948197","token_address":"0x41247fca17fa13388bafab1f18d8e627cf07046f","type":"artist","uuid":"f4440dcc-491a-441e-abbd-51779262f942"}
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 0x71414574d76a9d474ebe3238cd891cea3f03b065a5e2e70283e8da3840f057b8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4440dcc-491a-441e-abbd-51779262f942.json and https://artists.proofprofile.net/proofs/artist/f4440dcc-491a-441e-abbd-51779262f942.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x71414574d76a9d474ebe3238cd891cea3f03b065a5e2e70283e8da3840f057b8","name":"大室花子 (CV.日高里菜)","registered_at":"2026-06-21T14:37:28Z","symbol":"NIM1948197","token_address":"0x41247fca17fa13388bafab1f18d8e627cf07046f","type":"artist","uuid":"f4440dcc-491a-441e-abbd-51779262f942"}