逢坂大河・川嶋亜美(釘宮理恵、喜多村英梨)
type: MusicGroup
genre: anime
popularity: 9
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0f781199ced6a9071d89698228b5e411df14cb5a261bcb5d02362535d785f3b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93826554-e2d8-4109-ba0f-138a6c3bce27.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93826554-e2d8-4109-ba0f-138a6c3bce27.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93826554-e2d8-4109-ba0f-138a6c3bce27
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0f781199ced6a9071d89698228b5e411df14cb5a261bcb5d02362535d785f3b","name":"逢坂大河・川嶋亜美(釘宮理恵、喜多村英梨)","registered_at":"2026-06-17T17:09:01Z","symbol":"NIM1462462","token_address":"0x8babbdc8f24a8a324823d07fd717ee1a7116a788","type":"artist","uuid":"93826554-e2d8-4109-ba0f-138a6c3bce27"}
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 0xe0f781199ced6a9071d89698228b5e411df14cb5a261bcb5d02362535d785f3b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/93826554-e2d8-4109-ba0f-138a6c3bce27.json and https://artists.proofprofile.net/proofs/artist/93826554-e2d8-4109-ba0f-138a6c3bce27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xe0f781199ced6a9071d89698228b5e411df14cb5a261bcb5d02362535d785f3b","name":"逢坂大河・川嶋亜美(釘宮理恵、喜多村英梨)","registered_at":"2026-06-17T17:09:01Z","symbol":"NIM1462462","token_address":"0x8babbdc8f24a8a324823d07fd717ee1a7116a788","type":"artist","uuid":"93826554-e2d8-4109-ba0f-138a6c3bce27"}