C260 — P6 start and close cases remain two different residual states

23 September 2026 · Step 55 of 60, continuing C205.

P6’s sourced G3 Flood start gives δ=1 and center gaps 868½+190½. Its new double-11 G3 Flood close gives δ=2 and gaps 869+191.

Both cases are supported source selections, but neither is P6’s absent exact δ=0 state. That state would require ordinary Flood 2461, alternate Flood 2651 and cumulative ON 6342, all outside the held fields. The new relation refines the classification rather than repairing the old failure.

Evidence and scope

K=529 and r=25/23. BC base B means (B+1)t/Bn BC; reflected AD base A means AD At/(A+1)n. Their civil span is B+A in both seasonal components, with no year zero. Signed paired centers are −B and +A; the center model uses components ±1/4 and restores this separation after dilation. An interval center is geometry, not an event or a proposed universal Mirror axis.

Regular Gears are restricted to Noah/Shem/Flood. Creation and Conquest retain fixed source-field members; no fourth Gear is admitted. Generated coordinates, source-field membership and stored graph incidence are distinct. File_18/File_09 and the frozen C127 graph are unchanged. Earlier N01/N03 qualifications, the missing Shem join, closed primers and unestablished original Reports 11–25 remain unchanged. This packet selectively uses prior evidence; it does not rerun completed campaigns. Assertions and alternative placements are not independent historical witness counts.

6 step-specific checks and 19 frozen-input checks passed. Exact inputs, results and predecessor hashes are in the accompanying JSON records; calculation code is in the evidence archive. Source dependencies are identified in the body and frozen in sources/.