The Dark Matter Ratio and Hubble Tension Are the Same Measurement

We present a falsifiable prediction: the cosmological Dark Matter-to-Baryon ratio and the Hubble tension are not independent anomalies. They are dual measurements of a single underlying quantity—the Registry Latency parameter λ—and must co-vary exactly according to: (DM/B − 5.0) / 5.0 = ΔH₀ / H₀ = λ This prediction, derived from the Temporal Selection Framework (TSF), distinguishes TSF from all existing Hubble tension proposals. If future surveys (DESI, Euclid, JWST) revise either quantity, the other must shift in lockstep—or the framework is falsified. Supporting this headline prediction, the paper also provides: (1) A geometric proof that the Koide lepton-mass ratio Q is bounded at 2/3 as a structural limit of a 3D registry; (2) A registry-architecture account of dark matter as indexing overhead with a 5:1 geometric floor; (3) A hardware-level conjecture for the origin of the Born Rule. The framework establishes a "Registry Physics" architecture where the laws of physics emerge from the logical constraints of a causal archive.