your string looks a bit incorrect... it shouldn't have all the spaces in it... and it looks like you're getting the position of the ?'s wrong... and you don't quite get what the ?'s mean.
hashcat.exe -m 11300 -a 3 $bitcoin$96$**** hash?~?#?5?C?L?TEK?F?Y?/?5?r?
?l == lowercase letters (ie. abcdefghijklmnopqrstuvwxyz)
?u == uppercase letters (ie. ABCDEFGHIJKLMNOPQRSTUVWXYZ)
?d == numbers 1234567890
?s == symbols !"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
?a == All of the above
if you want to use a specific letter... you don't use ? at all... So, I'm not sure exactly what you trying as your mask... but pretty much none of your ?'s make any sense...
