Spatial Pressure Gravitational Theory — Public Disclosure of Technical Anchors

An effective gravitational theory takes continuous elastic medium as physical ontology: matter is localized medium defects, and gravity originates from medium dilation-induced tension gradient. Using merely two independent parameters, it unifies gravitational phenomena spanning galactic rotation curves to cosmic Big Bang. This paper complies with IPSTP v1.0, securing SGT’s theoretical benchmarks via the A/B/C three-tier split framework. Its inseparable theoretical fingerprint consists of 78 fixed technical anchors (13 axioms, 35 constraints, 30 outcomes) across nine fields: foundational formalism, Lagrangian field theory, static/rotating black holes, primordial cosmology & singularity elimination, CMB/cosmic perturbations, compact binary evolution, structural stability and observable predictions. Key quantitative findings differ distinctly from general relativity: ISCO = 4.23M (GR:6.00M), horizon radius = 1.6673M, scaled Hawking temperature = 0.866×T_H^GR, primordial Hubble constant = 1.023×10⁻¹, ISCO spin coefficient C1 = −0.466 with 86% suppression. Predictions target upcoming instruments: Athena X-ray (500–900 eV Fe Kα redshift tail), 3G gravitational-wave detectors (~14.3M echo delay), CMB-S4 low-ℓ power-spectrum damping and LISA-measurable ISCO rotational suppression. Published under IPSTP Tier-3 highest-grade certification: SHA-256 spatial hash, TSA.cn trusted timestamp and permanent Zenodo DOI together form a valid VDE. Per protocol rules, Layer C implementation data is held as trade secret, decryptable exclusively for judicial discovery, official audit or author-approved licensing.