Temporal Kinematics: Fine-Structure Closure and Electron Self-Return

Temporal Kinematics (TK) treats invariant temporal progression as primitive and geometry as a readout of temporal process under admissible closure. This supplementary manuscript consolidates two related TK benchmark reconstructions. Part I gives the foundations needed by a first-time reader: temporal support, geometric readout, smear, burden, the perpendicular interaction law, the universal comparator, and the double-boundary middle process layer. Part II reconstructs the inverse fine-structure constant as an external electromagnetic closure count. The proposed TK reconstruction gives an inverse fine-structure value of approximately 137.035999179103. Part III reconstructs the electron anomalous magnetic moment as the self-return counterpart of the same middle process layer. The proposed TK self-return expression gives an electron anomaly value of approximately 0.00115965218058648. The fine-structure route is interpreted as external closure. The electron anomaly route is interpreted as self-return closure. The shared structure is the temporal-geometric process layer, not a set of unrelated numerical choices. The proof status remains controlled. The sector-count and self-return expressions are presented as constrained reconstructions, with theorem-hardening tasks stated separately so that the derivational mechanism is not confused with an arbitrary numerical fit.