What SignalRupture Has Already Demonstrated: Evidence, Validation, and the Empirical Status of the Planetary–ATLAS Architecture

SignalRupture (SR) is often described as though its empirical test lies entirely in the future. That description is no longer accurate. The thirty-country Planetary SR series, the twenty-four-paper ATLAS programme, field-level comparative stress tests, negative cases, restoration cases, and completed retrospective testing have already placed substantial parts of the architecture under empirical pressure. This paper audits that record. It finds that SR has already demonstrated heterogeneous continuity architectures, compensation masking, cross-system pressure transfer, multiple buffer orders, formal–effective capacity divergence, the non-equivalence of dependency and fragility, the role of substitution and executable agency, the distinction between production and retained capability, restoration as an observable counterpath, and the ability of one frozen diagnostic grammar to discriminate among highly different national systems. It also records where SR has not yet earned stronger claims: universal parameterization of specific bridges, broad prospective superiority, and independent replication and broader cross-context robustness of incremental-value gains. The repeated cross-country propagation invariant is therefore formalized here as a candidate conditional systemic law rather than left as a merely descriptive pattern. The central conclusion is that SR is not merely a prospective metatheory awaiting first contact with evidence. It is an empirically active architecture with already-supported propositions and a higher validation tier still underway.