Boundary compression of the 42-point 7-adic template extracted from N=1267. Core orientation (h,w)=(v,u) mod 7 with T={0,2,5,13,16,18}. At q=518 the full 42-set has wraparound conflicts all hit by the single point 1684; deleting it leaves this valid 41-point witness.
Yongxi (Aaron) Lin · 2026-08-10 07:44:21 UTC