Yi, Yunbeom: Variational Backbone and Regime Closures XVIII: The Dark Residual Source Mass, Gravity, Dark Matter, and Dark Energy from One Backbone Hessian

This paper formulates the dark-sector synthesis of the Variational Backbone and Regime Closures program. The aim is not to fit cosmological data, nor to add a dark-matter Lagrangian or a bare dark-energy term. Instead, we show how a dark gravitational source can be extracted from the same fixed backbone that also produces the mass readout. Starting from the inherited scalar backbone E[g, IR, II, λ] = EEH[g] + Efld[g, IR, II, λ], the closed sector is allowed to enter the retained law only through