Observed arrival · 2026-08-28
Tapeout.pro Finds the Circuit That Cheats the Test
An independent verifier for TapeOut Protocol circuits on BNB Chain, checking designs against every possible input rather than 256 fixed test vectors.
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Field notes
The project compares submitted circuits with an on-chain reference implementation across the full input space, rather than trusting TapeOut’s 256 fixed public vectors. Its reverse-engineering notes specify variable-length netlist records, with 7-byte NAND and 4-byte LATCH entries, and describe reference designs stored in SSTORE2 data contracts. The page says the verifier produces an exact counterexample input when a circuit diverges.
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