Compiled Metaphysics: Structural Realism as a Generative Method, Demonstrated Across Gravity, Quantum Measurement, and Cognition

Working draft v0.2 (2026-07-20) — not for citation. This paper names and characterizes a method rather than defending a physical theory. The method — compiled metaphysics — treats a structural-realist ontology (reality as self-consistent emergent structure rather than substance) as a generative design-and-derivation principle, and 'compiles' that single ontology into distinct technical domains. Three independent compilations serve as evidence: a spacetime realization in which geometry emerges from an entropic action ('gravity from entropy'); a participatory-structural reading of quantum measurement in which objectivity arises from redundancy rather than substance, sharpened by Bell nonseparability; and a cognitive architecture in which a shared model is a substrate no user owns and each user's context is an owned observer-frame — instantiated in a live sovereign SHI instance (pr0fx) with a sealed constitution, temporal memory decay, and a revocable retirement key. The central claim is strictly methodological: using a structural ontology as a generative principle is real, repeatable, and productive. The three compilations are evidence of the method's generality, not that gravity, quantum mechanics, and AI are physically unified — they are siblings under a worldview, not a unified theory; each stands alone; none validates another. The method's value is generativity and coherence, never truth. Companion to The Observer-Frame (doi:10.5281/zenodo.21461056).