# C308 — Two supplied anchors: point coverage versus600-year segments

24 September 2026. Two-anchor finite comparison; no anchor search or primer reopening.

## Result

Changing only the cumulative reflected anchor from ConquestAD1406 to the already supplied ExodusAD1446 produces **11 labeled point matches at eight coordinate pairs, covering all eight cumulative SP_OFF Shem indices, but no complete600-year segment**. Conquest retains28 labeled points and12 labeled complete600 segments.

Complete annual point coverage can therefore coexist with failure of complete-segment coverage. Counting attractive endpoint matches alone would conceal a material difference between these two fixed comparisons.

## Held domain and equation

Both cases use regular W=8464 and reflectedAD6, cumulative W=12696, the same72 cumulative records, and the same528 regular records. Each case evaluates38016 pairs. Both cumulative anchors were explicitly supplied in the axis report before this step.

    8464−B−6 = 12696−C−Q
    C−B = 4232−(Q−6).

| Cumulative reflected anchor Q | Required C−B | Labeled / coordinate points | Labeled / coordinate600 segments |
|---|---:|---:|---:|
| Conquest1406 | 2832 | 28 / 18 | 12 / 8 |
| Exodus1446 | 2792 | 11 / 8 | 0 / 0 |

The Conquest counts reproduce C301–C302. The40-year anchor change shifts the source-offset condition by40; neither translation width is expanded or adjusted.

## The Exodus matches

All Exodus matches come from cumulative SP_OFF Shem5316…5309, selecting regular centers2524…2517. Their retained context families are:

| Regular family | Context | Labeled matches |
|---|---|---:|
| MT Flood start/close | Cainan OFF, Terah+60, full430 | 4 |
| SP Shem death | Cainan ON, Terah0, minimum215 | 5 |
| LXX Shem death | Native Cainan ON, Terah0, minimum215 | 2 |

These cover every annual index0…7, with coordinate aliases kept separate as source labels. None of the matches is a regular birth endpoint for a corresponding600-year segment. More decisively, their cumulative Flood partners would require regular centers1924…1917; none appears anywhere in the held528-record register.

The result does not rank Conquest and Exodus historically, assign statistical significance, or establish that the Conquest construction is uniquely intended. The comparisons are conditional descriptive censuses of two existing anchors, inspected after earlier work. They are not an independent held-out test.

## Evidence and next decision

Twelve mathematical/domain checks and nine source authentication checks passed; two readouts are byte identical. Same-season comparison and all prior context restrictions remain in force. Author review only; canonical and graph controls unchanged.

C309 will consolidate the claim dependencies: source-qualified path structure, numerical aliases, dependent equations, phase restrictions and placement assumptions. The purpose is to identify what this batch actually adds to529 without counting every repeated equality as new evidence.