Observational Confrontation of QMU Chronogeometry: Testing Temporal-Torque Memory with Cosmic Filaments and Residual Birefringence

This paper presents the observational capstone of the Temporal Torque Memory and Aether Organization series. The preceding papers developed a discrete five-dimensional chronogeometric framework in which organized temporal-torque domains are described using Quantum Measurement Units (QMU) and projected into observable signatures in residual cosmic birefringence and filamentary large-scale structure. The purpose of this work is not to introduce additional theoretical assumptions, but to confront the previously derived QMU observables directly with observational data and falsifiable null tests. The analysis proceeds through the sequence QMU Inventory APM Mechanism Synthetic Observable Null Comparison Falsifiable Prediction. The principal quantities tested are the temporal-torque density ₜ, temporal torque ₜ, residual birefringence field (n), temporal sweep swep, QMU power unit powr, coherence scale c, and memory correlation length M (z). The transport field is defined as F = -ₜ + ₜ, and the filament handedness observable is hf = t (F). Synthetic residual birefringence maps (n) are generated from temporal-torque simulations and projected onto HEALPix skies. The resulting angular observables include C_^, C_^E, C_^B. The paper defines cross-correlation statistics between filament handedness, filament orientation, and birefringence gradients, including C₇ and C₅. A memory detection statistic is introduced as SM = C₇₂_{₇}, with SM 0 indicating no measurable chronogeometric memory, SM > 3 indicating evidence for organized temporal-torque domains, and SM > 5 indicating strong evidence for persistent chronogeometric memory. The paper also defines the memory excess statistic EM = M^QMU-M^{null}_, which measures whether the QMU-derived memory correlation length exceeds randomized null expectations. The observational framework includes direct comparisons with gravitational density-field models, tidal-torque models, reaction-diffusion systems, and generic phase-ordering systems. Null tests include phase randomization, handedness scrambling, filament reorientation, sky rotation tests, and noise realizations. The central falsification statement is that if residual birefringence fields, filament handedness, node connectivity, and redshift-dependent coherence lengths show no statistically significant memory correlations beyond those produced by conventional models, then the proposed five-dimensional chronogeometric interpretation is not observationally supported. Conversely, if such correlations survive null tests, retain QMU-predicted structure, and remain distinct from conventional baselines, then the Aether Physics Model gains a specific empirical signature. The paper concludes with the central observational question: Can the discrete five-dimensional Aether unit produce observable memory signatures that survive direct confrontation with the sky?