中川梨花
type: MusicGroup
genre: anime
genre: shibuya-kei
popularity: 16
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ef8a001f512b4629e6edb0960a3c517a4cbc43681231e9d324ac3ed144dd8f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953795
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953795
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e100d941-859d-48fe-96d8-6969c8275acd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e100d941-859d-48fe-96d8-6969c8275acd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e100d941-859d-48fe-96d8-6969c8275acd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T13:44:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6ef8a001f512b4629e6edb0960a3c517a4cbc43681231e9d324ac3ed144dd8f4","name":"中川梨花","registered_at":"2026-06-15T04:10:53Z","symbol":"NIM0677914","token_address":"0x27bd2839675fd014c4a6669420adeeff75f8a612","type":"artist","uuid":"e100d941-859d-48fe-96d8-6969c8275acd"}
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 0x6ef8a001f512b4629e6edb0960a3c517a4cbc43681231e9d324ac3ed144dd8f4. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e100d941-859d-48fe-96d8-6969c8275acd.json and https://artists.proofprofile.net/proofs/artist/e100d941-859d-48fe-96d8-6969c8275acd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0x6ef8a001f512b4629e6edb0960a3c517a4cbc43681231e9d324ac3ed144dd8f4","name":"中川梨花","registered_at":"2026-06-15T04:10:53Z","symbol":"NIM0677914","token_address":"0x27bd2839675fd014c4a6669420adeeff75f8a612","type":"artist","uuid":"e100d941-859d-48fe-96d8-6969c8275acd"}