Lohmann is a surname. Notable people with the surname include: Dietrich Lohmann (1943–1997), German cinematographer Fred von Lohmann, American lawyer George Lohmann (1865–1901), English cricketer
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 0xae61f2d930d002d861c07d656ed7b29a0f45e2ead405841b92a2431eb12eb487. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09372bb7-d531-423c-89b4-cfd43a2e6b0d.json and https://artists.proofprofile.net/proofs/artist/09372bb7-d531-423c-89b4-cfd43a2e6b0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).