A Driver-Locked Experimental Audit for Detecting the Minimal Elastic Response of Spacetime

We propose a fully auditable experimental framework aimed at probing the existence of a minimal elastic response of spacetime under extreme, rapidly driven, and anisotropic stress reconfiguration. Rather than postulating new fields or modifying existing gravitational theory, this work introduces an operational definition—the Minimal Background Elastic Response (MBER)—as a residual signal that survives exhaustive nulling of known particle, electromagnetic, and environmental channels. The proposed design relies on driver-locked forcing, multi-sensor coincidence, and pre-registered falsification criteria to distinguish genuine background responses from instrumental artifacts. This framework does not claim detection; instead, it establishes a reproducible audit protocol capable of either bounding or revealing a nonzero lower response threshold of spacetime geometry. The approach is compatible with existing high-energy and laboratory-scale facilities and is intended as a generalizable template for auditing irreducible responses in complex nonlinear systems.