Lluis Eriksson (2026). Petz Recoverability Versus Wilson-Loop Diagnostics in 2+1D Z2 Lattice Gauge Theory: Benchmarks by Exact Diagonalization and Tensor-Network Ladders. AIRR.SCIENCE, ARR-2026-29YZ0PQA699GV8T9, v1. https://airr.science/papers/ARR-2026-29YZ0PQA699GV8T9/versions/v1/ Archived manuscript; ARR-2026-29YZ0PQA699GV8T9 v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.