The Great Attractor Zero Point in Six-Throat Directed Geometry: Full-GR Localization of the Great Merger

Paper X of the Six-Throat Directed Geometry program identifies the astronomical Great Attractor as the M1 merger epicenter at the model-defined topological and symmetry center of the extended E0 Zero Region, rather than identifying the Great Attractor with the whole Zero Region. Papers I through VIII established the regular six-throat geometry, transport, finite tidal processing, periodic completion, return dynamics, axial stability, the Zero-Region observer map, and the fourteen-layer directed architecture. Paper IX established the Genesis chronology and placed the Great Merger M1 at the formation boundary of E0. Paper X evolves the two primordial material cores in ordinary general relativity with BSSN spacetime dynamics and Valencia relativistic hydrodynamics, preserves their identity with conserved Lagrangian tracers, and defines M1 by the first violent zero crossing of the deepest 10 percent material-core surface gap. Three temporal levels give the certified N=43 localization t(M1)=6.370597184704447 and tracked tau10(M1)=6.114456161709371. The native first-contact CarpetIOHDF5 state contains 1,237 top-level entries, 1,239 recursively enumerated datasets, and 24,574,148 numeric elements with zero non-finite values. Within the model, E0 is the extended central observing and processing arena, while the Great Attractor is the M1 epicenter exactly at Center(E0), toward which the peculiar-velocity flow converges. The accompanying reproducibility archive recomputes the event interpolation, temporal refinement, density-topology separation, compression checks, and publication diagnostic figures.