Curve and independent-point witnesses from the Layr Labs Elliptic Rank Challenge public repository, submission/board/2-r18-z2k3.ec.
Specialization u = 4/7, t = -12673/12022 of the Elkies–Klagsbrun Z/2Z family (arXiv:2003.00077). The original submission describes Mestre–Nagao sieving followed by PARI/GP rank calculations.
Submitted to ICARM to document these improvements and make the curve available to other researchers.
jesper-petersen ·