Information Protection as a Fundamental Principle VII: Rigorous Emergence of Spacetime, Causality, Quantum Non-Commutativity, Decoherence, Spin-Statistics, and the Nature of Probability

We derive the deepest foundations of quantum mechanics and spacetime from the information-protection framework. The Lorentzian signature and constant speed of light emerge from the directed graph structure. The canonical commutation relation follows from the consensus delay, while an independent information-bandwidth bound constrains phase-space resolution. The wavefunction is identified as an information description held by an observer subnetwork, the measurement problem is resolved via the modified Schrodinger equation with a non-unitary relaxation term, and macroscopic commutativity emerges in the large-N limit. Bell nonlocality is resolved through the active-edge mechanism: entangled qubits are connected by dedicated graph edges whose consensus completes within a Planck time, providing an explicit realization of ER = EPR. Spin-1/2 emerges as a topological defect, and the spin-statistics theorem follows from braid group representations. The underlying network is deterministic; quantum probability is emergent for finite observers.