B16: BRISM - A Top-Down Structural Interface Framework From Quantum Phenomena to the Cosmological Constant

BRISM (Brane Interface Substrate Model) is introduced as a purely structural interface framework in which all observable information arises from a two‑sided, S²‑normalized projection surface embedded within a Naimark–Stinespring dilation bulk. Five interface axioms—phase neutrality, positivity, σ‑additivity, homogeneity, and spectral stability—together with two‑sided dilation completeness uniquely select the Born density P = |ψ|² and retain the dimensionless quantities ε = 1/π² and X = 4π³ + π² + π as working invariants of the current BRISM implementation. These quantities organize a wide range of quantum, astrophysical, and cosmological phenomena without free parameters. Local interface deformation yields the Casimir factor π²/240 through a structural 24×10 channel decomposition; the infrared fine‑structure constant is reproduced at 10⁻⁹ accuracy from X with a single algebraic correction; the same interface geometry produces parameter‑free cusp–core regularization in dwarf galaxies and the observed low‑ℓ suppression of the CMB; a UV minimal length arises near the Planck scale using only the proton Compton wavelength; near‑horizon leakage generates echo windows, finite Love numbers, and modified ringdown phenomenology; and the cosmological constant Λ ∼ 10⁻⁵² m⁻² appears as a global holographic interface tension from the isotropic weighting of thirty structural channels. In the current BRISM status, micro-scale sectors provide the strongest present support, while large-scale, strong-field, and cosmological manifestations are to be read as effective, global-consistency, or exploratory projections. Taken together, these results suggest a common geometric structure in which quantum, gravitational, and cosmological observables arise as interface-level projections rather than independent dynamical assumptions. This version (v3.30) aligns the top-down overview with BRISM Status 3M by explicitly distinguishing hard core, working invariants, and cross-scale claim hierarchy. *** Status note (May 2026): *** This paper remains the current top-down overview of the BRISM framework, but should be read together with BRISM Status 3M as the present claim-hierarchy reference. In the current BRISM hierarchy, the hard current core is the Born readout architecture together with the minimal phase layer. The quantities ε = 1/π² and X = 4π³ + π² + π are retained as working invariants of the current BRISM implementation, with strongest present support in micro-scale sectors, while large-scale, strong-field, and cosmological applications are to be read as effective, global-consistency, or exploratory projections. See BRISM Status 3M: Logical Consolidation and Claim Hierarchy: BRISM Status 3M: Logical Consolidation and Claim Hierarchy All BRISM papers on Zenodo >> Searchlist Supplementary structural material, dependency maps, and reproducibility notes are available in an accompanying public repository: https://github.com/swencarloheinze/brism-framework