sha256sum is not a continuous function. These functions should be continuous. Usually there are light restrictions on these functions to avoid what you are try

sha256sum is not a continuous function. These functions should be continuous. Usually there are light restrictions on these functions to avoid what you are trying to do. Lyapunov bounded, C2 continuous, ... Control engineers could use a piecewise approximation of an observer or controller, or use non-linear methods (like reinforcement learning, model predictive control, LQR, ...)