Consistency Test Between the PFUSR System and Cosmological Observations & Frontier Experiments

Based on the Pythagorean Frustum Unified System (PFUS/PFUSR), this paper systematically tests the consistency between the axiomatic system and current mainstream cosmological observations and frontier physics experiments. The tests cover cosmic large-scale structure, black hole observations, cosmic microwave background radiation, cosmic flatness, dark matter and dark energy experiments, quantum uncertainty, quantum entanglement, and experiments related to gravity-quantum unification. Results show that all existing observations and experiments are consistent with the PFUSR system, which exhibits high self-consistency and explanatory power on structure formation, geometric topology, dynamical mechanisms, and the unification of determinacy and indeterminacy. PFUSR requires no free parameters, singularity hypotheses, dark matter particles, or inflation mechanisms, yet provides a unified, natural, and complete explanation for key observational facts. Keywords: PFUSR; Pythagorean F