Limits of the result

The spacetime, deficit, and particle worldline are fixed. The event changes a prescribed slicing and its cell incidence. It does not derive the particle trajectory from matter data.

The affine chart table is finite and explicit. The circuit implements a finite coded event, not the entire continuous family and not an unrestricted Lorentz computation.

No computational metric or scheduling theorem is supplied. The physical diameter of the compact patch is not a substitute for such a metric.

Finally, this example has four-valent regular vertices and nonconvex faces. It is not claimed to lie in every stricter polygon calculus; see Remark rem:scope. Its exact content is the certificate of Theorem thm:certificate.