Francesco Facchinetti (born 2 May 1980), also known as Dj Francesco or as Oz, is an Italian DJ, producer, singer, musician and TV presenter. He rose to fame as a singer during the summer of 2003, when
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 0xfc741c02e5102a4c5c4c8bd04d82f22a529ca382c15909dc715aa0afe69af5c3. 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/4ab037dd-bd86-40b6-aa56-272c65a20755.json and https://artists.proofprofile.net/proofs/artist/4ab037dd-bd86-40b6-aa56-272c65a20755.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vivere Normale (feat. Roberto Facchinetti)