The Cosmochrony Research Programme: A Structural Roadmap and Paper Inventory

The Cosmochrony programme develops a pre-geometric framework in which physical structure — spacetime, quantum mechanics, gauge symmetry, and Standard Model observables — arises from a single primitive: the local structure of admissible non-injective transitions between observable states. The corpus comprises 71 papers across three theory branches. Branch I (Foundation track) builds the axiomatic base: four axioms suffice to derive the Heisenberg group $\\mathrm{Heis}_3(\\mathbb{Z}/q\\mathbb{Z})$ and its Weil representation as theorems, without any background substrate or relaxation mechanism. Branch II (O-series) develops the spectral admissibility sub-programme, deriving and numerically validating the transfer chain $c_\\chi \\to \\delta_{\\mathrm{pair}} \\to \\beta^* \\approx 0.126$ connecting the BI saturation constant to the charged-lepton mass hierarchy. Branch III (Q-series and companion papers) derives quantum mechanics, spacetime geometry, gauge structure, and further physical observables from Branch I axioms and Branch II spectral data. Paper Q3 completes the $\\mathrm{SU}(2)$ quantum sector: by combining BI indiscernibility with Schur's lemma on the Clebsch–Gordan decomposition of $\\chi_{2j+1}\\otimes\\chi_{2j+1}$, the universal singlet correlator $E(\\hat{a},\\hat{b}) = -j(j+1)/3\\cdot(\\hat{a}\\cdot\\hat{b})$ and the Born rule are derived for all five admissible sectors of $2I$, closing the general-$j$ extension that was open in Q2. The geometric emergence sub-programme (Q5a–Q10, U1, W1, H2) closes the effective spacetime identification: under the Q5a continuum-limit hypotheses, the lifting hypothesis [H-lift] is proved (Q9), asymptotic $\\mathfrak{su}(2)$-isotropy $A_H \\to 2$ is proved (Q10, U1), the admissibility weight convergence [H-w] is proved (W1), yielding the effective Lorentzian co-metric $g^{\\mu\\nu} = \\mathrm{diag}(-2, 2, 2, 2) \\propto \\eta^{\\mu\\nu}$ ($A_\\tau = 2$, Q11 ). Q5a v2.0 establishes that [H1] is not needed in full generality. Q5a-O2 proves spectral atomicity of the admissible sector (each pair spans three pure Fourier modes) and closes hypotheses [H-$\\mathcal{E}$1] and [C] without Nash inequalities. Hypothesis [H2] (strong convergence of the rescaled Weil generators) is proved (H2 paper), closing all hypotheses of the Q5a large-$q$ convergence theorem unconditionally on the admissible sector. O31 develops the structural framework for the SU(3) identification: the metaplectic intertwining of $\\mathrm{Heis}_3(\\mathbb{Z}/q\\mathbb{Z})$ forces triplet co-admissibility unconditionally for the colour-adapted Cayley graph, and SU(3) is thereby identified as the symmetry group of the co-admissible colour triplet conditional on [H-color]. This paper provides a complete inventory, a logical dependency map, and a structured account of what is proved, structural, heuristic, or open. It is intended both as an entry point for external readers and as an internal navigation reference.