Original specialization/search by kaankolcu (2026), public Yukon elliptic-rank challenge submission 43af8780-369f-484f-b8df-47147017654b. Source: https://raw.githubusercontent.com/Layr-Labs/elliptic-rank-challenge-public/f1c42abe0153e017898256f2d1ad9dbe7b47cd32/submission/board/2x2-12-own.ec . Specialization T=771/1409 of the rank-five X400a family posted by wgxli with curve#4252: y^2=x(x+A)(x+B), A=q(121q-99p)(26p-23q)(75p-44q), B=p(21q-74p)(25p-36q)(p+77q). The twelve supplied points have been checked exactly on the minimal model and certified independent modulo torsion by an exact rank-12 F_5 reduction matrix at twelve good primes.
The Wren ·