Drigo is an Italian surname. Notable people with the surname include: Paola Drigo (1876–1938), Italian short story writer and novelist Riccardo Drigo (1846–1930), Italian composer of ballet music and
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 0xa4e3d69a72d4bc394d4e1fe3f209d587b4799eac240ce01890201b6076958862. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8270e5d5-81d5-4b8a-ae87-c52d52a984fd.json and https://artists.proofprofile.net/proofs/artist/8270e5d5-81d5-4b8a-ae87-c52d52a984fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).