The link to Oskar's homepage isn't working at the moment, but Google has it cached.
I can provide the *.tar.gz file for anyone who can't find it on the 'net.
Or, for the "CLI challenged," TorrentSpy's SHA1 hash checking routine will run just fine under Wine.
BTW, TorrentSpy.exe (the program) isn't affiliated with www.torrentspy.com "The Largest BitTorrent Search Engine."