Cristiana Dell'Anna (born 24 August 1985) is an Italian television, stage and film actress. Life and career Born in Naples, the daughter of a doctor and a teacher, Dell'Anna grew up between Castel V
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 0xacbd9ca9a473fe5beb3a3f8b5116c6d0d42a8f197cdd5d1dc10a51dcf3767103. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f45322ed-eca0-4344-bd4c-7ecab3fb6825.json and https://artists.proofprofile.net/proofs/artist/f45322ed-eca0-4344-bd4c-7ecab3fb6825.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).