No, it's Mr. P's own key, and I don't think that'd get released. The idea is that even if all our backups somehow burn the data can still be reconstructed from unknown sources.
So that is why this specifically is step 1:
Step 1. Create a new GPG key on a machine that never connects to the Internet. Do not advertise this key anywhere, do not register it with gribble, do not use it anywhere at all.
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http://polimedia.us/bitcoin/faq.html#18