It is not only about being impossible being tampered with. It is about trusting the system. Since we trust the blockchain with 100 + billion dollars. trusting it for a time sheet system should not be that hard
Sure, but I think you're missing my point. Is this a problem that really needs a solution or is it a solution in search of a problem? Are time tracking systems not trustworthy enough already? Perhaps I'm just ignorant, but I've never heard of this issue, and it just sounds like the sort of thing that sounds like a problem to techies, but isn't really a problem in practice.