In case my account becomes compromised, I will begin posting under my doppelganger, User:PMC, which does not have administrative access. The following is a SHA-2 hash which can confirm my identity in case of such an emergency:
0e743fd5d9d33580036fe99f70ce22116d5992feeb20603aa57071e7f1fb716f446a0b43f810f554386e78cfcca7b0b1b1ec091324668231175dbfeec5072fc7
If something does happen and I am forced to post under User:PMC or another name, contact me via email, IRC, or a note on my talk page if you are looking to verify that I am myself.
See here for instructions on how to create your own committed identity. Thanks to User:Mangojuice for the excellent idea.