Vincent Lo Hong-sui, GBM, GBS, JP (; born 18 April 1948) is a Hong Kong businessman. He is the chairman of Hong Kong–based Shui On Group, a building-materials and construction firm. He graduated from
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 0x69459f516a38e50054221ff4963561af43075dcf77f27a84b2dce88b2c2a9831. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8d93f31-4a52-4b60-8161-275d6aa5e28c.json and https://artists.proofprofile.net/proofs/artist/f8d93f31-4a52-4b60-8161-275d6aa5e28c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).