Engst is a surname. Notable people with the surname include: Adam C. Engst (born 1967), American technology writer and publisher Erwin Engst (1918–2003), American advisor to the People's Republic of
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eec7e00e98ffde15d8168b73c9684c65d404f2b67c275766a41431ce73890c. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5efcc97-3080-4268-ba7e-eb0f386a2994.json and https://artists.proofprofile.net/proofs/artist/a5efcc97-3080-4268-ba7e-eb0f386a2994.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Herr Meier von der AfD (HouseWirtschaft Remix)