OpenSuSE 13.1 is available for download on 2013/11/19. To make sure it’s the same as the original, I use SHA-2562 and MD53 to confirm.
Generate SHA-256 Hash on OSX
The download page provides many hash results. From the following screenshot, the SHA-256 Hash is “f321065f08bb8aba9e3e4fa6896989ca1099d3cf613abd150e2508db9a5b0a2a”. Run “shasum -a 256 openSUSE-13.1-DVD-i586.iso” and compare manually.
Generate MD5 Hash and Compare on Linux
To save compare time, use the MD5 Hash file on the download page. Click on “MD5 Hash” link to download “openSUSE-13.1-DVD-i586.iso.md5”. Run “md5sum -c openSUSE-13.1-DVD-i586.iso.md5” to compare automatically.