Unifies CCLII (Δm² ratio + PMNS via Class III Gudermannian blend at framework angles) and CCLIII (absolute neutrino mass scale via Higgs Yukawa with G₂ root closure) into a single mass formula. The key insight: ν₁ has no G₂ orbit closure on the 4D brane at any order (the only neutrino with nₗong = 0 in the framework PMNS structure), so its mass cannot come from G₂-orbit closure on the brane. The mass acquisition must instead be W-boson mediated: the W lives in 5D effective phase space (4D brane + 1D e₇ direction, since the W crosses the brane-bulk separator under CXLIX), and its action on the 4D brane is the projection of that 5D phase space. The dimensional ratio 5/4 enters as the angular projection factor. For ν₁, this fixes φ₁ = (5/4) ·ΘG₂ = 10. 110°, replacing CCLII's tilt-based −Θₜilt = −4. 044°. Evaluating the Gudermannian blend at this corrected angle gives m_ν₁ = 0. 5047 meV, matching CCLIII's separate α⁷·√7 channel (0. 5071 meV) at 0. 48% agreement. The α⁷·√7 of CCLIII is therefore not a separate physical mechanism but the small-angle limit of the unified blend. One formula handles all three masses: m_νᵢ = (fIII·sinh² (φᵢ) + (1−fIII) ·sin² (φᵢ) ) × scale, with φ = (10. 110°, 40. 956°, 85. 956°). Σm_ν = 59. 30 meV. Framework now makes the structural prediction that the W boson lives in 5D effective phase space, falsifiable via anomalous W-neutrino couplings at >1% precision. Closes the OOB neutrino sector under a single physical mechanism. Part of the One-Octonion Brane-Bulk Framework series. Anchor DOI: 10. 5281/zenodo. 19120873. Community: one-octonion-brane-bulk. Author: Bharathi Dasan Jagadeesan, M. D. , University of Minnesota. ORCID: 0000-0002-1143-941X.
Bharathi Jagadeesan (Sat,) studied this question.