One-Octonion Brane-Bulk Framework - Paper CCCLIII: Intrinsic Heavy Flavour from the Split Generation — The Proton's Two Reconfiguration Channels, the NNPDF Intrinsic-Charm Momentum Fraction from Canonical Transit Constants, and a Strange-to-Bottom Discriminator Between Two Edge-Pricing Hypotheses

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One-Octonion Brane-Bulk Framework, Paper CCCLIII. The NNPDF collaboration (Ball et al., Nature 608 , 483 (2022)) reports evidence for intrinsic charm in the proton: a scale-independent, valence-like charm component peaking at x ≈ 0.4, carrying (0.62 ± 0.28)% of the proton's momentum, at 3σ local significance with EMC charm data and LHCb Z+charm included. This paper accounts for the observation from the framework's ontology, in which the proton is one coherent standing wave anchored at three generation-I focal zones (Paper CCCXLVIII). The key structural fact: generation two is the split generation - its doublet occupies one node in each sector (c ∈ H + , s ∈ H − ; Paper CIV), so charm is the only heavy quark on the same side of the octonion as the proton's anchors. This answers the question the parton picture cannot ask: why charm, specifically , shows a valence-like intrinsic component when no other heavy flavour does. The same-sector channel is priced entirely by canonical transit constants: per-cycle occupancy f bulk × f K = 3.6919% × 16.238% = 0.5995% against the measured (0.62 ± 0.28)% - with the occupancy-to-momentum identification stated explicitly as a definition, and the wide experimental window disclosed (the central-value match is never cited alone; the account stands on the derived sector geometry and the falsifiable companion spectrum). No CKM element attaches: the dressing is a flavour-diagonal out-and-back excursion realizing the zero-junction-flux baryon-side circuit {e 1 ,e 2 ,e 3 } of the e 7 -bypass circuit theorem (Paper CCCXXXVIII). The companion spectrum. Intrinsic strange pays one additional non-root edge crossing, priced by the same Class-I pattern through the D s meson that realizes it: f Ds = 18.768%, giving 0.1125% - below charm, the opposite of light-cone 1/m² expectations (BHPS), from which it differs by three orders of magnitude in s/c. For bottom the framework currently admits two internally consistent edge-pricing hypotheses, presented strictly as competing models with no ruling asserted : Hypothesis A (one edge, one fraction, via the B c realization) gives 0.1135% and forces the near-degeneracy b ≈ s - a signature no mass-power model can produce; Hypothesis B (two boundaries priced separately, the layer structure the CKM sector itself uses for the same edge: Paper CIV assigns V cb two factors of λ on this one crossing) gives ≈ 0.021%, a geometric ladder c : s : b ≈ 1 : 0.19 : 0.035. Registered predictions. P-CCCLIII-1 - non-radiative strange at 0.11%, common to both hypotheses; a valence-like non-radiative strange component at or above the charm level kills the split-generation account. P-CCCLIII-2 (the discriminator) - non-radiative b/s = 1.01 (A) or 0.19 (B), mutually exclusive at factor 5; a factor-2 measurement decides, and the verdict is assigned to future data. Both values exceed the 1/m² expectation (~3×10 −4 ) by orders of magnitude, so any detection of non-radiative bottom at the 0.02-0.11% scale is itself a framework signature whichever hypothesis it selects. P-CCCLIII-3 - intrinsic top is identically zero: no top hadron exists to realize a top edge, so the non-hadronization of the top quark and the absence of intrinsic top are the same geometric fact. Honest scope, stated in the paper. No operator dictionary is supplied from brane-current configurations to the renormalized charm twist-two operator; no factorization-scheme or scale bridge is constructed; the occupancy-to-momentum identification is a definition; gate independence (P(seam|dip) = f K ) is assumed, not derived; the x-shape expectation is interpretive. These are named open items. 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. Version 2 (2026-09-08): physics-only register; files: PDF and verification scripts.

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