I wanted to download calgary.tar, I found via Google
https://en.wikipedia.org/wiki/Calgar...External_links
The ftp link "Original home of the Calgary Corpus" did not work, I've used "New home" instead:
http://corpus.canterbury.ac.nz/descriptions/#calgary
But this archive is differerent from
http://mattmahoney.net/dc/calgary.tar
I think the archive on mattmahoney.net is true.
Give true links on most common corpuses (with its MD5/SHA-1) for benchmark, thanks.