Lilika () is a 1970 Yugoslav drama film directed by Branko Pleša. The film won the Golden Leopard at the Locarno International Film Festival. Cast Dragana Kalaba as Milica Sandić - Lilika Branko Pl
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 0xa863a9d0b5148e72e67a6ed20a04f7b1689d11aa390ce60320c23d9ae63137b4. Chain 2 (Bitcoin): anchored in block 953843 (2026-06-15T22:27:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/005b66e0-58ae-46da-8dd9-b91a80df3522.json and https://artists.proofprofile.net/proofs/artist/005b66e0-58ae-46da-8dd9-b91a80df3522.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).