Congratulations to the solver of puzzle 67, I saw that the solver uses MARA Slipstream. Is good to know that MARA works well for lower range puzzles

Puzzle 67 - 1BY8GQbnueYofwSuFAT3USAhGjPrkxDdW9
00000000000000000000000000000000000000000000000730fc235c1942c1ae
KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qbP2K5cm35XKMND1X1KW