  Our study reveals electron spin in a cavity as a stable circulating current
density, characterized by a torus topology. This current density circulates
concentrically beyond the cavity boundary, illustrating the concept of
evanescent wave spin. While the interaction with a uniform magnetic field
aligns with established spin-field observations, our analysis of regional
contributions deviates from particle-based spin predictions. The integration of
charge and spin properties into a single Lorentz covariant entity suggests that
the electron wave constitutes the fundamental and deterministic reality of the
electron.
