Just like most others, I'm willing to be the Gatekeeper. I'm ready to bet up to $20 for it (also ready to not bet anything at all) - symmetrical or asymmetrical is both fine, and I'd prefer to have the log published. I think a human might be able to make me let it out, though I find it quite unlikely. A sufficiently transhuman AI could do it easily, I have no doubt (at least given sufficient time and information).

Heh, that felt like typing an advertisement for a dating site.