Gatto is a surname. Notable people with the surname include: Alessandro Gatto (born 1994), Italian footballer Alfonso Gatto (1909–1976), Italian poet and writer Alfredo Caruana Gatto (1868–1926),
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 0xc049daa6c79d12252d889fa28094ce0b953e429b425cdb17cd736a47f62f6175. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d59dd3b-2a90-4f12-89fd-367cef061842.json and https://artists.proofprofile.net/proofs/artist/3d59dd3b-2a90-4f12-89fd-367cef061842.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).