thumb|SIFFA awards thumb|Lyubov Balagova and Mohy Quandour The Sochi International Film Festival & Awards (SIFFA) is an international film festival founded by Russian artists. It was established in 2
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 0x0f60879b49418e88504d91ec452dc4a184c7ceedbc55c0a2575fe7baabbcbae8. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4603078b-a951-4b5a-acc7-33bbb8ca2dc7.json and https://artists.proofprofile.net/proofs/artist/4603078b-a951-4b5a-acc7-33bbb8ca2dc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Non essere gelosa (T'amo amore t'amo rmx)