Here is a weird and beautiful repository: πfs file system. The idea is pretty simple as far as math goes – π contains all possible sequences of numbers which means all possible data. So why not just get it from the “π” as we need it using index/length combo as meta data?
One of the properties that π is conjectured to have is that it is normal, which is to say that its digits are all distributed evenly, with the implication that it is a disjunctive sequence, meaning that all possible finite sequences of digits will be present somewhere in it. If we consider π in base 16 (hexadecimal) , it is trivial to see that if this conjecture is true, then all possible finite files must exist within π. The first record of this observation dates back to 2001.