There is nothing simple about hash functions :-) They rely on unproven mathematical conjecture that one-way functions exist. Their existence would imply that P!

There is nothing simple about hash functions :-) They rely on unproven mathematical conjecture that one-way functions exist. Their existence would imply that P!=NP :-) Re: shell game. Are you implying that fraud or misdirection is involved? Some bitcoin scientist should be able to point where it is hidden. Or is it just a claim without evidence?