Exact witness arithmetic: endpoint 2 fails 95%; endpoint 3 is the smallest successful one-sided endpoint.
Configured coverage [0,2]: actual 0.9475977178, scalar 0.9767606151; actual [0,3] 0.9738271218.
Configured mean 0.5186169458, actual/scalar variances 1.0875939888/0.5832556124.
Variance-defect identity residual 1.24e-14; forward/backward gap 3.89e-15, retained overflow 7.38e-16.
Independent-founder limit (numerical) 0.848799756; source-linked control coverage 0.953216498.
Numerical repairs for new preparations are not certified thresholds. The exact witness is synthetic, not a fitted assay.