Francesco (Francio) Mazza (born 1982) is an Italian writer, screenwriter, and director from Milan. He began his career as a recurring guest on Michele Santoro’s talk shows (Circus, Il Raggio Verde) a
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 0x4c5f3cbb84c46541c58645a5867bbb5175ee3615937f1c37f8564e20153a28ec. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab7e1fc5-9f4e-4215-8fed-99b2f8030701.json and https://artists.proofprofile.net/proofs/artist/ab7e1fc5-9f4e-4215-8fed-99b2f8030701.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).