Abstract

We construct a payload-independent spacetime realization of every finite future-causal fixed-wire instrument network on an explicitly specified increasing-stencil lattice family. A residue-class construction supplies private transport lanes inside an ordinary lattice, including in one spatial dimension. Rounded affine paths give an every-prefix pacing estimate. Local gathering, unchanged payload instruments, and local dispersal take a vanishing amount of physical time; long routes operate in parallel. The complete instrument is preserved exactly, including every untouched reference.

For a calibrated finite source experiment at scale $j$, and a fixed proper orthochronous Poincare transformation $g$, the construction gives, at every sufficiently fine target scale $n$,

with $C_g$ independent of source-network complexity. Acquisition events, individual retained paths, and matched payload-modification footprints satisfy corresponding estimates. A full-tail diagonal argument follows.

We then construct a Bell-pair measurement network with local setting inputs, retained quantum outputs, and an untouched quantum memory. Its logical instrument is exactly scale-independent. An explicit finite unitary apparatus dilation defines an isotone spacetime observable net with spacelike commutation, product-preserving comparison maps, and an exact state–instrument pairing. The prepared Bell specialization has CHSH value $2\sqrt{2}$, while its unconditioned marginals are independent of the remote setting.

The result is a finite-network continuum realization. It is not a quantum field theory, a derivation of physical light speed, or an exact microscopic boost symmetry.