Physics from Finite Validation: The Electron as a Mode of the Vacuum Network

The first work of this series recovered classical physics and drew the quantum boundary from a single requirement — existence as mutual confirmation transmitted in finite time; the second carried the construction to the vacuum. Here we fit the theory to an object possessing mass: the electron. The examination is run against an explicit four-point checklist — mass, charge, identity, spin — stated in Section 1 and repeated with statuses in Section 9. The architecture follows from the picture itself: a massive particle cannot be transferred through quantum acts that have no duration, so the network acquires two transport layers — edges carry the massless (the photon), nodes carry the massive, whose motion is reassembly of configuration, with v 0.98 while coefficients run 0.8–0.85 of analytic predictions — the form is the claim, the coefficient is instrument-limited. The record contains two files: the main article and the Numerical Companion (full simulation protocols, seeds, and per-result status labels). Code: https://github.com/ivan-denysov/finite-validation-electron