The Mathematical Spine of Living Field Theory - Interpretive Priority, Structural Invariants, and Constraint-Based Derivation

The Mathematical Spine of Living Field Theory (Version 1.0) isolates the minimal mathematical and structural framework underlying Living Field Theory, independent of physical sector modeling or computational instantiation. This document defines interpretive priority, admissible-history structure, irreversible constraint accumulation, and future-based equivalence relations that jointly give rise to time, memory, identity, determinacy, and computation as structural consequences. The spine serves as a shared interpretive and mathematical reference across Living Field Theory, Volume I, Living Field Theory, Volume II, and Structural Inevitability Computing (SIC). It introduces no new physical postulates and is intended as a stable, citable backbone preventing reinterpretation drift across realizations.