I am using HasCalc and I believe that your web page:
https://fedoraproject.org/static/checksums/Fedora-12-i386-CHECKSUM

Provides invalid information. The hash below is a SHA256 Vice a SHA1 as stated in the quote below from your https://fedoraproject.org/static/checksums/Fedora-12-i386-CHECKSUM web page
Pleas advise if I am correct.

Quote
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

f0ad929cd259957e160ea442eb80986b5f01daaffdbcc7e5a1840a666c4447c7 *Fedora-12-i386-DVD.iso
...

Unquote

Respectfuly:
Robert
214-732-9094