#md5

"We have used a Sony Playstation 3 to correctly predict the outcome of the 2008 US presidential elections. In order not to influence the voters we keep our prediction secret, but commit to it by publishing its cryptographic hash on this website."

"Collision resistance means that it is infeasible to find two different inputs M and M' with the same hash H(M)=H(M'). Note that many collisions exist, but it has to be infeasible to actually find even a single collision!"

"Search in 48,083,359 md5/sha1 hashes. 6,104,212 searches answered since feb 2005. "

"Be happy and love the MD5."

"...at some point in the future I would like to be able to prove that I wrote it today. So, let me just say that its MD5 hash is..."