This paper is the fourth in a series on operational interpretations of gravitational divergences. The first paper established the limit-behavior interpretation of black hole singularities (doi: 10. 5281/zenodo. 18114785). The second extended this to gravitational self-energy in quantum superpositions (doi: 10. 5281/zenodo. 18314120). The third gave the framework its full mathematical form (doi: 10. 5281/zenodo. 19066295). The present work derives the directly observable experimental signatures of that framework. The Operational Curvature Cutoff Principle (OCCP) predicts a minimum gravitational collapse timescale tauₘin = sqrt (pi) * hbar * lP / (G m²), scaling as m^-2, in contrast to the Penrose-Diosi prediction tau proportional to m^-1. This paper derives: (i) the gravitational dephasing rate Gammaₚhi = Egrav / hbar as the primary interferometric observable; (ii) the coherence length dcoh (m, Tₑxp) as the maximum accessible superposition separation, which saturates at the Planck scale; (iii) a two-dimensional experimental discrimination map over (mass, separation) parameter space; (iv) an inverse inference test in which the same observed timescale yields mass estimates differing by ~10²7 under OCCP vs. Penrose-Diosi, resolvable by a single independent mass measurement; (v) a dimensionless master curve demonstrating that the m^-2 scaling is universal across all mass distributions. All results are verified numerically using the companion simulator occpₛimulatorᵥ4. py (included as a supplementary file in this record), which produces twenty figures covering the full parameter space of the framework. Running the script requires only numpy, scipy, and matplotlib.
Alperen ÖZER (Fri,) studied this question.