SensoryTrace defines acoustic and visual residue as epistemic evidence. In Socioplastics, perception is not secondary illustration but a first-order mode of registration through which environments leave measurable traces. Sound, image, atmosphere, rhythm, and residue function as evidentiary matter: they register pressure, memory, conflict, and presence before conceptual abstraction. SensoryTrace treats visual and acoustic remains as cognitive infrastructure capable of preserving what exceeds direct statement. Perception becomes record, and residue becomes proof.