Gianmaria is the name of: Gianmaria Bruni (born 1981), Italian racing driver Gianmaria Dal Maistro (born 1980), Italian skier Gianmaria Potenza (born 1936), Italian artist Gianmaria Testa (1958–2
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 0xecae05715fbf540b57aa1d64303c678b8e94798ac227f663152358493a275aea. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/085544d9-e3d8-4b73-9e5b-0a245ee5f933.json and https://artists.proofprofile.net/proofs/artist/085544d9-e3d8-4b73-9e5b-0a245ee5f933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).