Ai Fen () is a Chinese doctor and director of the emergency department of Central Hospital of Wuhan. In December 2019, she was one of the first doctors to encounter pneumonia patients infected with th
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38abb16a03d3c1db6aaeadd30a55de5f4f2bd9a29c61b6d39b22942e44d02f74. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ae4f59c-5a85-4802-8592-a38c20e297ce.json and https://artists.proofprofile.net/proofs/artist/5ae4f59c-5a85-4802-8592-a38c20e297ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).