HDC–CBC/ΔΩcₜ Effective Dynamical Closure Between Basal Rupture and Historical coherence

The HDC–CBC framework describes the emergence of a projected geometric regime from a basal correlational domain and, in its dynamic extension Ωcₜ, promotes correlational coherence from a rigid effective magnitude to a historical one. However, the conceptual bridge between the basal instability developed in Δ and the historical coherence implemented in Ωcₜ remains only partially explicit. This article proposes a minimal internal closure of that bridge. Starting from the correlational action already introduced in the relativistic and quantum sectors of the corpus, we show that the one-dimensional basal functional used in Δ can be interpreted, in the homogeneous pre-geometric limit, as the negative of an effective correlational potential, We then argue that a first-order gradient-type relaxation is the most conservative effective closure compatible with the Δ program, the Ω/Ωcₜ correspondence, and the absence of additional local degrees of freedom. Within a minimal FLRW normalization, the structural relaxation parameter can be mapped monotonically onto cosmological history through which leads to an effective historical equation of the form with in the simplest normalization and in the minimal potential-driven realization. Near a reference coherence state, this gives rise to a linearized running law for historical coherence and, therefore, for the correlational index, up to normalization and sign conventions fixed by the selected branch. Within this framework, the constant- sweeps of ΩCt/N are reinterpreted not as the fundamental theory, but as a conservative operational approximation to the full historical trajectory. This work does not claim a complete ultraviolet microphysical derivation of the correlational sector, nor does it replace the broader numerical and observational program that the corpus still requires. Its thesis is narrower and, precisely for that reason, more solid: within the existing architecture of HDC–CBC, the passage from Δ to Ωcₜ can be written as a minimal and coherent effective closure that reduces arbitrariness, increases falsifiability, and provides a concrete route for updating ΩCt/N from constant-index sweeps toward a trajectory-based reconstruction.