A standalone deterministic Python benchmark suite for verifying reproducible execution. Instead of trusting a result because it looks correct, the expected behavior is encoded directly in executable code and tested every time. It includes fixed 2×2 and 4×4 matrix checks, a 1,000-iteration algebraic workload, configuration loading, timing, unit tests, syntax checks and a full smoke test. It is generated through a readable Bash builder script, uses only the Python standard library, and needs no APIs, external services or network access.