Rosario Tindaro Fiorello (born 16 May 1960), known just as Fiorello, is an Italian comedian, singer, radio and television presenter. Career Fiorello was born in Catania, Sicily, and raised in Augusta
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 0x8435fbd571aad75c5f9140cf27159054858756536e08d0518cc1cb25c2ce7247. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75484b08-7687-44b3-ab4c-4e04bddc8600.json and https://artists.proofprofile.net/proofs/artist/75484b08-7687-44b3-ab4c-4e04bddc8600.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).