Lieutenant József Kiss de Elemér et Ittebe was a World War I flying ace for the Austro-Hungarian Empire. He was credited with 19 aerial victories. He was the most successful Hungarian ace in the war.
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 0xd80d6b1aaa2db549dea924bf35b0ebb7ffb373ef0c848c37d722d4f3192048af. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edce4257-db54-4a60-8785-06addf00bf48.json and https://artists.proofprofile.net/proofs/artist/edce4257-db54-4a60-8785-06addf00bf48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).