Cesare is the Italian version of the given name Caesar, and surname Caesar. People with the given name Cesare Airaghi (1840–1896), Italian colonel Cesare Arzelà (1847–1912), Italian mathematician
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 0x5ce1d4bb65488e3dcda0d48d6687667be4812c287fb3b8132607b09f3cd1eb86. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e97b2e-e58a-4121-b2ec-965bd9b17c3a.json and https://artists.proofprofile.net/proofs/artist/32e97b2e-e58a-4121-b2ec-965bd9b17c3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).