朝比奈桃子(CV:小倉唯)
type: MusicGroup
genre: shibuya-kei
popularity: 2
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf90bb2be0d03155e2d0568d451e1a22c767033adbe270537867de8f9c278442
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b303258c-5fa4-4e77-819e-bfdd7d5d95ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b303258c-5fa4-4e77-819e-bfdd7d5d95ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b303258c-5fa4-4e77-819e-bfdd7d5d95ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf90bb2be0d03155e2d0568d451e1a22c767033adbe270537867de8f9c278442","name":"朝比奈桃子(CV:小倉唯)","registered_at":"2026-06-20T13:15:41Z","symbol":"NIM1620422","token_address":"0xb31a6e4a3754c8eebfa58e81fc4ffc5c466c0820","type":"artist","uuid":"b303258c-5fa4-4e77-819e-bfdd7d5d95ca"}
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 0xdf90bb2be0d03155e2d0568d451e1a22c767033adbe270537867de8f9c278442. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b303258c-5fa4-4e77-819e-bfdd7d5d95ca.json and https://artists.proofprofile.net/proofs/artist/b303258c-5fa4-4e77-819e-bfdd7d5d95ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xdf90bb2be0d03155e2d0568d451e1a22c767033adbe270537867de8f9c278442","name":"朝比奈桃子(CV:小倉唯)","registered_at":"2026-06-20T13:15:41Z","symbol":"NIM1620422","token_address":"0xb31a6e4a3754c8eebfa58e81fc4ffc5c466c0820","type":"artist","uuid":"b303258c-5fa4-4e77-819e-bfdd7d5d95ca"}