Informational Admissibility and the Stabilization of the Cosmological Constant

This Foundational Paper introduces the core formulation of the Multiverse in Vertical Time Theory (MVTT) and its specific application to the cosmological constant problem. The work develops a constraint-based interpretative framework linking informational admissibility, torsional structure, and cosmological stabilization, while preserving compatibility with standard local spacetime physics, through a structural architecture which includes phase-curvature tensors, local branching dynamics, and recursive compile-level realization - all embedded within a spacetime manifold governed by a meta-temporal vertical ordering of time. The paper also explores theoretical and mathematical connections with PGT, Wolfram's Ruliad, Deutsch-lineage simulative interpretations, Wheeler-DeWitt problem of time, and an Everett-compatible operational bridge with Copenhagen. Full technical development, formal structure, 58 equations, 1 Lemma, a prediction set and 7 appendices are contained in the deposited manuscript. Version 2.0 incorporates the revised Appendix (d) on the 9-45 Hz admissibility corridor, a new falsifiability Prediction on its residual coarse-grained signature, and a new Appendix (e) related to local-branching and the possible holographic nature of the reality frames.