Auditing Space-Phase Functions Against Phenomenology: Resonance, Stiffness, and Constraint Across Scale

With gravitational-wave observations now directly constraining the physical behavior ofspace itself, it is possible to audit the core functional claims of space-phase theory againstexperiment. This paper performs such an audit by comparing phenomenology acrossscales—atomic confinement, orbital resonance in the solar system, stiffness at black-holehorizons, and lossless strain transport—to the functions ascribed to space-phase withinthe SP3 framework. Remarkably, the same properties required by gravitational-wave datanaturally account for these otherwise separate phenomena. This convergence suggeststhat resonance, stiffness, and constraint are not distinct mechanisms but expressions of asingle substrate operating under different loading regimes.