Bellini is an Italian surname, formed as a patronymic or plural form of Bellino. People Family of Italian painters: Jacopo Bellini (c. 1396–c. 1470), father of Gentile and Giovanni Gentile Bellini
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 0xa5c0a3405e079e989a3204b37269a34081ab04b2d9d280c0f8f90b222286d7d9. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/944f319c-ad83-4c55-b53e-dad15d458b2f.json and https://artists.proofprofile.net/proofs/artist/944f319c-ad83-4c55-b53e-dad15d458b2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bellini by Callas, Di Stefano & Campolonghi - I Puritani - Parte Prima
Bellini by Callas, Di Stefano & Campolonghi - I Puritani - Parte Terza
Bellini by Callas, Di Stefano & Campolonghi - I Puritani - Parte Seconda