Gatti is an Italian surname. Notable people with the surname include: Alessandra Mirka Gatti, Italian Eurobeat singer Annibale Gatti, Italian 19th-century fresco painter Armand Gatti (1924–2017), Fre
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 0xd1e7ac2d6486351a19f9b8b0bca9e1834a99ca14477f07ff09bc5187dde7c48d. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/086a1c00-03c6-4c0f-8184-668e616b885d.json and https://artists.proofprofile.net/proofs/artist/086a1c00-03c6-4c0f-8184-668e616b885d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.