Exact-rank-10 Mordell curve obtained by rational 3-isogeny from the Burkhardt specialization with parameters (u,v,w)=(-3,2,-4) and t=685/209, discovered in October 2026.
Exact rank [10,10] independently verified with PARI/GP 2.17.4 using ten rational points checked exactly on the minimal model.
jesper-petersen ·