Ferri is an Albanian, French, and Italian surname. Notable people with the surname include: Alessandra Ferri (born 1963), Italian prima ballerina assoluta Alessandro Ferri (1921–2003), Italian foot
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 0x6e25069e56bc3f0576ef908fee8e588783a58f4a0386a9dc02db4cb8cce14e1b. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c77e2dda-a70c-46b9-aaeb-0464f181e36a.json and https://artists.proofprofile.net/proofs/artist/c77e2dda-a70c-46b9-aaeb-0464f181e36a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).