Francesco De Francesco (born 21 September 1977, in Tortora) is a retired Italian professional footballer who played as a striker. He played 19 games in the 1997–98 season for U.S. Lecce in the Italia
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 0xdc5736c97c6ad088cf922d195e6ee90e58280bee55faa947179b31d125c9fcc2. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bb65243-0156-4d66-bca4-47c6eddd2085.json and https://artists.proofprofile.net/proofs/artist/4bb65243-0156-4d66-bca4-47c6eddd2085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).