Nested Coherence Across Scales: Multi-domain Evidence and a Minimal Triad Invariant (Paper 1, V2)

We report scale-dependent coherence structure appearing across independent domains:atomic clock residuals (multiple laboratories), Earth rotation metrics, and geomagnetic indices,with a weaker but present signature in near-Earth interplanetary magnetic field magnitude.We then introduce a minimal, local triad invariant with a quantized residue that organizes thesestructures without anchoring any single global period. We interpret the observations through anested coherence-domain picture while explicitly separating observation, rule, and interpretation.