LAKANA SOS v71: A Local-First, Fail-Closed Safety Operating System for Civilian Protection Under Degraded Infrastructure

This technical preprint presents LAKANA SOS v71, a local-first, fail-closed civilian safety operating-system architecture designed for degraded, adversarial, or infrastructure-fragile conditions. The manuscript reports the LAKANA SOS v71 Final Core Connected Empirical Monte Carlo Run, with the optional movement/accountability/winter post-stack explicitly excluded from final claims. The reported run used 250,000 full trials and 500,000 adversarial trials, with empirical environmental trace conditioning, empirical transport calibration, six GUIDE proxy-derived input lanes, and TSARO temporal/timeline proxy inputs. The manuscript separates evidence tiers throughout: environmental trace inputs are treated as empirical measured/raw-derived, transport as empirical calibrated, GUIDE and TSARO temporal/timeline as derived proxy, survivability as simulation-internal, TSARO/NICOLE outputs as native diagnostics, and adversary models as heuristic/synthetic. Under the modeled assumptions, LAKANA+CivOS showed higher simulated safe-state survivability than an industry-style centralized/cloud comparator, with a reported survivability estimate of 0.975304 versus 0.963996 and a bootstrap BCa confidence interval for the LAKANA+CivOS minus comparator delta of approximately 0.010908 to 0.011732. The manuscript does not claim field validation, deployment certification, emergency-response certification, medical performance, independent privacy/security certification, or guaranteed real-world survival. This record includes the corrected PDF preprint, the LaTeX source, and the LaTeX source bundle with figures for reproducibility and archival review.