Santiago Domingo Lucas (born December 20, 1966, in Norzagaray, Bulacan), known professionally as Pretty Boy Lucas is a retired Filipino professional boxer who competed from 1983 to 1995, challenging
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 0x4321192cc1754a2948a038601d15e5f9c8ed327cf303d05294c4588e3a422707. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e31d0f8f-821a-4a85-a42c-eae1fbf423b5.json and https://artists.proofprofile.net/proofs/artist/e31d0f8f-821a-4a85-a42c-eae1fbf423b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).