宮舞モカ
type: MusicGroup
genre: vocaloid
popularity: 18
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb33a5114d3e56f6b0aa18834f52a882f2c6821e07a4b036606c82b966b6816de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953670
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953670
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58a57a2c-a08c-4c94-9141-38ad94566530.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58a57a2c-a08c-4c94-9141-38ad94566530.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/58a57a2c-a08c-4c94-9141-38ad94566530
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T18:07:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb33a5114d3e56f6b0aa18834f52a882f2c6821e07a4b036606c82b966b6816de","name":"宮舞モカ","registered_at":"2026-06-14T13:45:34Z","symbol":"NIM0471420","token_address":"0x9dd242d7e00dc8b2be9ef4c780f4185e19995bfa","type":"artist","uuid":"58a57a2c-a08c-4c94-9141-38ad94566530"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33a5114d3e56f6b0aa18834f52a882f2c6821e07a4b036606c82b966b6816de. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58a57a2c-a08c-4c94-9141-38ad94566530.json and https://artists.proofprofile.net/proofs/artist/58a57a2c-a08c-4c94-9141-38ad94566530.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T18:07:12Z
  text: {"copyright_id":"0xb33a5114d3e56f6b0aa18834f52a882f2c6821e07a4b036606c82b966b6816de","name":"宮舞モカ","registered_at":"2026-06-14T13:45:34Z","symbol":"NIM0471420","token_address":"0x9dd242d7e00dc8b2be9ef4c780f4185e19995bfa","type":"artist","uuid":"58a57a2c-a08c-4c94-9141-38ad94566530"}
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