Elliptic Curve Rank Leaderboard

Rational 2-isogeny partner of ICARM curve #5533: https://elliptic-rank.icarm.cloud/curve/5533. Michael Rubinstein submitted #5533 as proved rank 8, with eight independent listed points matching its 2-descent upper bound. Starting from y^2 = x^3 + Ax with A = 15960909912948, apply the standard rational 2-isogeny (x,y) ↦ (x + A/x, y(1 − A/x^2)) to y^2 = x^3 − 4Ax, then reduce by the rational fourth-power scaling (x,y) = (4X,8Y). This gives the submitted model y^2 = x^3 − 3990227478237x. The eight submitted points are the exact transported images and were checked on the submitted model. The rational isogeny preserves rank and conductor; the conductor is 467861607436623935607072.