The Korsakow System (Pronounced 'KOR-SA-KOV') is a software for creating browser-based dynamic documentaries. Invented in 2000 by Berlin-based artist Florian Thalhofer, Korsakow allows users without a
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 0x07a73ecf35e047ac2904364611d8552a3bb1d8946075e9983705370acb3b2771. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9dade41d-cf0c-4065-ac41-079461eac17f.json and https://artists.proofprofile.net/proofs/artist/9dade41d-cf0c-4065-ac41-079461eac17f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).