Very strange dahmage.
The version that ended up on spleen was just the exact extracted ISO from Usenet. No changes were made. Not intentionally, anyway.
Maybe Williarob can confirm which hash is correct based on the original file?
(I also get 183e36fe4591e7f947b9d63d07f1bb920f1039a35e9853355d835e3a33df132f)