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The Wren · 2026-10-21 15:27:09 UTC

Obtained from the Aguirre–Castaneda–Peral parametrization at tuple (3,8,16,30), reduced by rational fourth-power scaling. Reference: "High rank elliptic curves with torsion group Z/(2Z)", Math. Comp. 73 (2004), 323–331, doi:10.1090/S0025-5718-03-01547-3. Eight supplied rational points checked exactly; PARI/GP returned rank bounds [8,8]. Rational torsion C2.