I think the GAZP is probably something along the lines of “Anything that says it’s Bob, for reasons that is similar to the reasons Bob would say that he is Bob, is in fact Bob.” Along this principle, we could upload you, and as long as the computer is running algorithms that are isomorphic to the “algorithms” run by your brain, that copy in the computer is you.
I think the GAZP is probably something along the lines of “Anything that says it’s Bob, for reasons that is similar to the reasons Bob would say that he is Bob, is in fact Bob.” Along this principle, we could upload you, and as long as the computer is running algorithms that are isomorphic to the “algorithms” run by your brain, that copy in the computer is you.