And another one as backup, because this is Professor Quirrell we're talking about here:
9805a0c7bf3690db25e5753e128085c4191f0114
Obviously, though, this is all misdirection from his real scheme.
Here is the sha512sum of his sha1sum:
efd2fe6c5defd19d396a8504fd4a300de88dbd4ae64f934464da34644b03fb4c805a76fd208b417c837c0f4861f3fe0999e99fc085d48a86cfd3d4317ec48993
I would like to make a prediction, but I'm not ready to raise the subject of the prediction just yet. So to show that it was not just obvious in hindsight, and to strengthen my precommitment to write an article about it later, here is the sha1sum of my prediction: 9805a0c7bf3690db25e5753e128085c4191f0114.