For what it's worth, because this definitely has confused some people (particularly on Wikipedia): Kryptos is a puzzle sculpture, created by an artist commissioned by the CIA (which so far as I know had no direct input into the sculpture, but paid handsomely for it).
It's not, so far as I know, a "real" cryptosystem. (CIA isn't the center of crypto research for the USG; that's NSA).
Fun. But, rule of thumb, if your method is apropos of nothing and similar methods could produce pretty much any text at all, you have not produced a cryptanalysis.
What, you mean that performing arbitrary permutations and transpositions on a ciphertext until it produces garbage that vaguely resembles actual words in various disjoint places isn't actually cracking the code?!
Depending on just how silly the method is, any method can count as legitimate cryptanalysis. And, given the huge combinatoric space of natural language, the odds of just hitting upon the correct cryptanalysis are unfathomable.
You can check if your solution is correct at this website whois confirms to be owned by the puzzle creator, Jim Sanborn:
http://kryptosclue.com/clue/clue.html
Looks like it could be correct. I've just emailed Jim Sanborn (the creator) to ask if he can confirm or deny it. I'll report back once he gets back to me.
It's not, so far as I know, a "real" cryptosystem. (CIA isn't the center of crypto research for the USG; that's NSA).