Well, 67 was just solved.
730fc235c1942c1ae
Someone please notify bib, he is still searching for prefixes

7545bf10859946eca
730fc235c1942c1ae
1BY8GQbnueYebq5d6CE1wDfbdAWWy33ZyW
1BY8GQbnueYofwSuFAT3USAhGjPrkxDdW9
It's quite close, it's just that Bibi Jin's luck is not very good