伊藤予示子
type: MusicGroup
popularity: 4
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5da0f9017d28daab6455f3c58a0a7205e3f6a2d49485cba3f8244369f26d1d1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36ef23dd-9b88-400d-9a29-3b4ef048bd40.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36ef23dd-9b88-400d-9a29-3b4ef048bd40.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/36ef23dd-9b88-400d-9a29-3b4ef048bd40
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5da0f9017d28daab6455f3c58a0a7205e3f6a2d49485cba3f8244369f26d1d1b","name":"伊藤予示子","registered_at":"2026-06-16T08:40:57Z","symbol":"NIM0997796","token_address":"0x1cf54cd8d960d42268bb9ba44230535dcb26f79c","type":"artist","uuid":"36ef23dd-9b88-400d-9a29-3b4ef048bd40"}
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 0x5da0f9017d28daab6455f3c58a0a7205e3f6a2d49485cba3f8244369f26d1d1b. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36ef23dd-9b88-400d-9a29-3b4ef048bd40.json and https://artists.proofprofile.net/proofs/artist/36ef23dd-9b88-400d-9a29-3b4ef048bd40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x5da0f9017d28daab6455f3c58a0a7205e3f6a2d49485cba3f8244369f26d1d1b","name":"伊藤予示子","registered_at":"2026-06-16T08:40:57Z","symbol":"NIM0997796","token_address":"0x1cf54cd8d960d42268bb9ba44230535dcb26f79c","type":"artist","uuid":"36ef23dd-9b88-400d-9a29-3b4ef048bd40"}