[List] hashes and sizes of clean wz files, so you can know if yours are corrupted

TBH, if the hash has been changed the program shouldn't even be executing correctly, and this applies for just about everything.
Btw, MD5Sum is a program that verifies MD5 hashes.

EDIT: Wasn't aware they could be hashed o.O?

Well, good thing to know that you're not a hacker, then.

Every single file in existence can have an MD5 sum calculated on it.