Sean Mansfield
M256 Coherence Geometry is a finite, executable instantiation of the Universal Coherence Admissibility Quotient (UCAQ). It realizes coherence as a closed, 256-state quotient geometry in which admissibility, trajectory, and correction are structurally observable rather than inferred. Organized around a bell-lattice embedding and observer-invariant transitions, M256 demonstrates how coherence behaves under constraint, motion, and scale within a fully bounded system. It does not decide outcomes or enforce authority; it makes coherence visible, comparable, and inspectable at engineering resolution. M256 serves as the reference geometry for applied systems: a working formalism that bridges abstract admissibility theory and executable architectures without introducing interpretation, optimization, or policy.