Mario Finotti (born March 19, 1950) is an Italian photographer and journalist. Biography He was born in Novara in 1950, living with his family in via Dolores Bello. At the age of ten, on hot summe
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e3182382bb247f0cf7f3cdb9cc1aeff0ca08214d4194e019fba9de83ce9e99. 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/e3e6aff3-9b71-46dd-b370-c2def6b4e531.json and https://artists.proofprofile.net/proofs/artist/e3e6aff3-9b71-46dd-b370-c2def6b4e531.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.