490d C419 — Fixed Mirror tests of the five-station 2K profile
24 September 2026. Step 6 of 10 in the C414–C423 authorization.
None of the five2K station pairs joins the existing17K Mirror construction. The frozen48-record cumulative register contains six Shem/Flood pairs separated by1058. Combining each with the five new regular pairs gives30 bounded trials. Their two cross-spans are equal in each trial, but none equals8993=17K.
| Regular station pair | Required cumulative Shem | Required cumulative Flood |
|---|---|---|
| Noah birth3899 /2841 | −6152 | −5094 |
| Shem birth3399 /2341 | −6652 | −5594 |
| Noah death2949 /1891 | −7102 | −6044 |
| Shem death2799 /1741 | −7252 | −6194 |
| SPclose3299 /MTstart2241 | −6752 | −5694 |
The table solves the existing17K equations at each fixed regular pair. Every required role-specific cumulative endpoint is absent from the frozen menu. These diagnostic coordinates are not added as sources or used to fit another axis.
The two already admitted originali3/i5 corner exchanges, C−x with C=−2639 and−2635, were also applied to all ten regular station slots. None of the20 images is in the cumulative register, irrespective of role. Those exchange constants remain local comparisons, not global Mirror axes.
The source profile therefore contributes a coherent2K biography comparison while remaining separate from the original2K/17K joins. C414's older result is also retained: moving the original regular side−500 preserves its short1058 interval but changes17K cross-spans to8493. Neither result licenses a replacement of the existing cumulative anchors.
Verification and limits
32 main checks and 16 frozen-input/predecessor authentication checks passed. A second main replay produced byte-identical DATA/RESULTS. These checks and the source interpretation were performed by the root agent; no new independent-agent review is claimed. All frozen originals and standing controls remain unchanged. Verification counts are not independent-witness counts.
The absence results are relative to the frozen48-record cumulative menu and two already admitted exchanges. They do not exclude other authorized future source work. No new pivot, endpoint, phase or global axis is admitted.
Mirror/529 focus: K=529, E=25/23, P=70/69. Global paired Mirror January AD1; local junction January AD2; no civil year zero. Regular Gears are Noah/Shem/Flood only. SP minus-one person companions remain local to SP Noah/Shem; Flood close is a separate boundary. No upstream/cumulative Gear, new endpoint or phase, fitted anchor, global axis, primer reopening, canonical or graph edit. Capture now; canonize later. Source identity, context, modal binding, generated coordinates and phase ancestry stay distinct.
Decision after this result
C420, proposed and unexecuted: At each of the five established upper stations, hold that existing coordinate and apply E, E², P and J to its paired lower station. Test every exact output against the frozen regular source menu, keeping source membership, boundary identity and missing intermediate points explicit.
The fixed Mirror joins are now closed negatively. The next small test asks whether the new2K profile contributes sourced harmonic endpoints under the existing scalar operators, without searching for a new pivot.