Is that "just" a performance concern though? Ie why is there a base58 and base62 but no base63? Now you've got me curious on the performance of base58 to base6

Is that "just" a performance concern though? Ie why is there a base58 and base62 but no base63? Now you've got me curious on the performance of base58 to base64 hah. Down the rabbit hole i go. Appreciate your reply, thanks :)