Reference refinement changes the heat-flux sign
The bounded reference diagnostic completes and retains every planned case. Its independent saved-output audit reconstructs the results from signed species outputs, checks spectral accounting and baseline reproduction, and verifies native completion and the local archive copy.
| evidence | result |
|---|---|
| completed collection and artifact integrity | 2076 integrity checks pass on the complete bounded study; baseline reproduction, signed species outputs, spectral accounting, native completion and the local archive copy are verified, while electron-flux signs change across refinement levels and finest-level backend differences remainC-203 |
| numerical reference convergence | not established |
Electron heat changes sign across the tested levels at every selected state in both backends. The basis ladder produces much larger changes than the separate quadrature and high-wavenumber ladders. It changes the basis used in width optimization together with the final eigenvalue basis, so it does not isolate which part causes the sensitivity. Backend differences also remain at the finest combined level.
The full observed flux ranges are retained. They measure numerical sensitivity, not a certified uncertainty bound. Choosing the finest result, averaging the backends or clipping the negative values would hide evidence without establishing a valid reference. The low-wavenumber grid and other unresolved numerical controls still require investigation.
The run uses the owner’s approved alternate shared-work storage. Its authoritative local archive completes and matches checksums; the Simvue mirror is unavailable, and no remote synchronization occurs. Earlier failed execution and preparation attempts remain recorded separately.
What’s next. Isolate width-search basis from final-basis effects before any coupled reference remedy. The current model, guard, temperature criterion and reference-coverage ceiling remain unchanged. M4 and the candidate’s coupled acceptance remain open.
Technical details → Verification › reference refinement result
Decisions → OQ-33 · OQ-34 · OQ-35