Prospective Protocol: Zero-Drive Critical-Margin Exponent and Dynamical Marginality Test in Canonical ACRF-4

<p dir="ltr">This public timestamp freezes a prospective computational protocol for a zero-drive critical-margin test in canonical ACRF-4 within Registration Theory (Physical Foundations). </p><p dir="ltr">A preceding prospectively registered long-horizon experiment (protocol DOI 10.6084/m9.figshare.34001022) found a statistically significant analyzer-dependent first-capture signal but did not reproduce the sharp Born-frequency law.

Over the measured positive-coupling range W=0.015 to 0.075, the analyzer signal grew much more nearly linearly with W than quadratically. </p><p dir="ltr">The present protocol tests a specific proposed mechanism for that behavior. Every fixed canonical trajectory has an even analytic scalar response beginning at O(W^2). However, if the dynamically generated first-passage boundary has a quadratic fold, a near-threshold cumulative margin law F(epsilon) proportional to epsilon^(1/2) can convert the microscopic W^2 perturbation into an ensemble response proportional to |W|. </p><p dir="ltr">The registered experiment therefore uses W=0 only and measures the survivor margin q_H = 1 - max Lambda_n over complete successors n=1,...,H at H=8, 32, 128, and 512.