nx_evoracle_gate.nx

nx_evoracle_gate.nx -- teeth for THE INDEPENDENCE LAW (nx_evoracle.nx). Written to clause 4 of the evidence law: EVERY clause has a NEGATIVE CONTROL that makes it fire. A gate that only ever asserts the happy path has not been shown to measure anything -- and this lane has already paid for that lesson twice (a filter that excluded its own target class reported nothing-to-test, which reads identically to nothing-to-find). T3 IS THE GATE THAT MATTERS. It is the single move by which this classifier could be gamed: name-drop RFC 7748 in a comment while computing your own expected values, and collect a THIRD-party label for first-party work. T3 replays exactly that forgery and requires FIRST. If T3 ever passes by returning THIRD, the classifier has become the thing it audits. T1 and T2 are drawn from REAL corpus headers, not invented fixtures: T1 is the header of nx_x25519_kat_gate.nx (RFC 7748 + OpenSSL cross-check) and T2 is the header of nx_lex_kat.nx (all 256 bytes vs inlined ground truth). A classifier proven only on fixtures its author designed is a fixture test; these two are the measured population it must separate. license_tier: ORIGINAL expect_exit: 0