GPU fleet ETG electron-scale (nonlinear): NT 79-80% below PT (Q_e 23.4 vs 110.7 @ a/L_Te=3.0). NEGATIVE-TRIANGULARITY BENEFIT HOLDS AT ELECTRON SCALE. mu=400 (standard, published ETG practice); the ion scale is independently real-mass confirmed (A1c mu=3672).

Frozen result

What was computed

GPU fleet ETG electron-scale (nonlinear): NT 79-80% below PT (Q_e 23.4 vs 110.7 @ a/L_Te=3.0). NEGATIVE-TRIANGULARITY BENEFIT HOLDS AT ELECTRON SCALE. mu=400 (standard, published ETG practice); the ion scale is independently real-mass confirmed (A1c mu=3672).

Reproduce this

# Reproduce REG-P13 against the frozen record
pip install kronos-toolkit   # github.com/KronosFE/kronos-toolkit
python -c "from kronos_toolkit.verify import run_regression; run_regression()"
# REG-P13 is anchored in the 2026-08-27 freeze spine (verdict: reproduced).