p = 12213654610276583951
a = 9374423569024714994
b = 240430241766866873
Gx, Gy = (10273374051119124574, 1978599828948865946)
Qx, Qy = (6596891426983767119, 7378615696110850573)
ct = 5fbdbe00a9dd895274f88861e676324c96f8dbe5c54f4e5bb14c8c09d68fdbbe77bea012b7
