Konrad Otto Bernheimer (born 30 August 1950) is a German Venezuelan art dealer and collector. He is the chairman and owner of Bernheimer Fine Old Masters in Munich, and was the owner of Colnaghi in Lo
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 0x290ada83ccb76a5d06618f28551f3f9142a4908cde4331fdb693d19997e060a7. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf4c2b36-4004-4c75-997d-bae1d77dbfe6.json and https://artists.proofprofile.net/proofs/artist/bf4c2b36-4004-4c75-997d-bae1d77dbfe6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).