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DmcsCertified ​

The proved bound: what it may not exceed, and how much reach it buys

6/6 passed in 84088ms

TestWhat it doesResult
test_beats_analyticAt 60 km and ξ=0.01 dm_rate is negative and dm_secure certifies key.✅ pass
test_below_step_oneThe certified bound stays under the Frank-Wolfe value it linearises about from 0 to 80 km and under the repeaterless capacity −log2⁡(1−η) to 120 km, and one Frank-Wolfe step certifies less than fifteen with both still under step 1.✅ pass
test_cost_is_chargeddm_cost's p_pass and delta_ec equal the certified run's bit-for-bit, delta_ec is LUL19 Sec. IV D's (1−β)H(Z)+βH(Z|X) at every β, and with no cut p_pass plus the dropped weight is one, an identity internal to the engine and not a published number.✅ pass
test_cutoff_settlesFrom nc = 4 to 8 the step-1 objective moves under 2%, the certificate stays within 20% of it and the constraint violation under 1e-4, which sizes the cutoff assumption rather than removing it.✅ pass
test_falls_with_lossThe certified rate falls monotonically with fibre length and with excess noise.✅ pass
test_postselection_paysAt 80 km and ξ=0.02 a radial postselection cut lowers the pass probability and raises the certified rate, as LUL19 Sec. IV E reports.✅ pass