Multi-Timescale Temporal Correlation for Adversarial Time Validation

Time validation in adversarial environments cannot rely solely on instantaneous signals or singleauthoritative references. Replay and synthesis attacks exploit the fact that conventional timesources can be fabricated coherently at a single moment. This paper introduces multi-timescaletemporal correlation as a general strategy for adversarial time validation. We show that systemswhose observable state integrates environmental exposure over distinct and non-overlappingtimescales impose strong constraints on plausible temporal histories. By correlating fast electronicclocks, intermediate chemical kinetics, and slow biological and circadian processes, a validator candetect timeline compression, replay, and temporal fabrication attacks. The contribution of thispaper is not a new timing mechanism, but a unifying framework that formalizes how heterogeneoustime-integrating processes jointly provide evidence that time has genuinely passed.