thumb|right|200px|Francesco Cilluffo Francesco Cilluffo (born in Turin, Italy, January 1979) is an Italian conductor and composer. Education He graduated in Composition and Conducting with Gilberto
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 0xbdcaa2428d89889736e2c92a157bb43a8b1c33498640e7f14d9453b82b6581c7. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12e3ec97-f6a5-41ad-a0b1-602a2a37cf87.json and https://artists.proofprofile.net/proofs/artist/12e3ec97-f6a5-41ad-a0b1-602a2a37cf87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).