MIFF may refer to: Film festivals Listapad, aka Minsk International Film Festival, held each November in Minsk, Belarus Maine International Film Festival, held in Waterville, Maine Melbourne Interna
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 0xe79fa17ea61693af85c56e034f28582be83d7acdeda6ebc12ecbdcb48da8e85e. Chain 2 (Bitcoin): anchored in block 953911 (2026-06-16T08:03:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18393de9-15d1-4923-a6b2-98cf7dd7e1a7.json and https://artists.proofprofile.net/proofs/artist/18393de9-15d1-4923-a6b2-98cf7dd7e1a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).