PFUSRC 43: The First Center — Earth-Based Cosmology and Rhythm Anchoring in the PFUSRC Flow Model

Against the traditional opposition between geocentrism and heliocentrism, this paper establishes a hierarchical topological framework based on the PFUSRC flow model and the 45° triple coaxial bicone structure. The Earth is formally defined as the First Center—the natural observation anchor and practical reference origin for human cosmology. Using public astronomical parameters and calendar cycles, this work constructs an Earth-centered topological mapping system that can describe orbital motion, seasonal rhythms, tidal variations and long-period cosmic evolution. A comparison between the First Center frame and the heliocentric frame shows that the former has stronger intuitiveness, higher data continuity and better applicability for near-Earth phenomena. Ultimately, this work transcends the historical geocentric-heliocentric dichotomy, offering a robust topological paradigm for cosmic rhythm analysis and high-precision terrestrial prediction.