C286 — All scoped event endpoints of the 2K source leg

24 September2026. The endpoint scope remains regular Noah/Shem/Flood.

The wider event register adds a19K family:2K+17K=19K. The earlier17K family remains, and no Shem or death endpoint supplies another all-K path in this domain.

The target register contains528 qualified records. C01 supplies MT/SP Noah and Shem births/deaths; File_18 supplies the Flood baselines and the LXX anchor check. LXX Noah/Shem records are the corresponding MT records+780, with native Cainan ON; canonical normal Noah and elected Shem anchors were checked separately. Only SP receives its own companion records. Applying the eight existing Cainan/Terah/sojourn contexts retains each role and native Cainan setting.

All256 cumulative source pairs are tested against528 targets:135168 comparisons. Twelve labeled paths have both legs divisible by529:

Every first leg remains1058=2K from LXX ON Shem to LXX OFF Flood. The four SP Noah endpoints are3705,3706,3707,3708: G1 companion/primary and G2 companion/primary. LXX OFF supplies3706 and3708 as primary G1/G2 births. The two traditions share those coordinates but remain distinct source records. No LXX companion has been generated.

The new total is10051=19×529. Its six labeled realizations represent four numerical rows; the two LXX records duplicate coordinates already supplied by SP primary rows. Alongside the six MT Flood paths, the twelve labeled hits therefore represent ten distinct coordinate paths. This distinction prevents numerical co-location from inflating the structural count.

The new paths are inherited endpoint comparisons, not new C127 edges. They add a second exact K family to the current state-qualified construction. They do not demonstrate a universal K rule for every life endpoint: all Shem and death candidates fail the two-leg criterion in the declared domain.

The evidence retains the complete256 source-pair register,528 target records, comparison/failure counts and every hit. Twelve mathematical/domain checks and eight authentication checks pass. The calculation replays identically. Author review only; standing controls unchanged.

Best next bounded step — C287: join the17K and19K families at their common cumulative intermediate. Determine the complete four-node K structure and the exact rows on which all four source identities exist. High is sufficient.