叶芠佳
type: MusicGroup
popularity: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6b0bbcc37b14aa7b509636f13e1b2fbdbdb6b070b3053dbe22ef617acb612f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9c6cee2-033a-49b0-9e89-d20ca81b1280.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9c6cee2-033a-49b0-9e89-d20ca81b1280.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f9c6cee2-033a-49b0-9e89-d20ca81b1280
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe6b0bbcc37b14aa7b509636f13e1b2fbdbdb6b070b3053dbe22ef617acb612f0","name":"叶芠佳","registered_at":"2026-06-15T06:46:03Z","symbol":"NIM0714952","token_address":"0x855543f05f5f9c8baf268251e5522dc1f386ab77","type":"artist","uuid":"f9c6cee2-033a-49b0-9e89-d20ca81b1280"}
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 0xe6b0bbcc37b14aa7b509636f13e1b2fbdbdb6b070b3053dbe22ef617acb612f0. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9c6cee2-033a-49b0-9e89-d20ca81b1280.json and https://artists.proofprofile.net/proofs/artist/f9c6cee2-033a-49b0-9e89-d20ca81b1280.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0xe6b0bbcc37b14aa7b509636f13e1b2fbdbdb6b070b3053dbe22ef617acb612f0","name":"叶芠佳","registered_at":"2026-06-15T06:46:03Z","symbol":"NIM0714952","token_address":"0x855543f05f5f9c8baf268251e5522dc1f386ab77","type":"artist","uuid":"f9c6cee2-033a-49b0-9e89-d20ca81b1280"}