The checksums below are a simple way for you to double-check the copy of Jaxx you are installing is genuine. You can match the checksum in your instance of Jaxx with the data below.
$ shasum -a 256 Jaxx.Liberty-2.2.2.dmg
012c10ed305bff56684c867a8f24fcfcc0892ae05033404e8f57e09c2dd6957cDownload for Mac
$ certutil -hashfile Jaxx.Liberty-setup-2.2.2.exe sha256
a1fccacb6d9693e79ee7ee352c45fe69ed138af71aa590a3664239621c5613edDownload for Windows
$ shasum -a 256 com.liberty.jaxx-2.2.2-i386.AppImage
430aeb7d4e354ca60a6dfe5f3234bdf04d13fb23121c1d6a55ee9c20a286e4deDownload for Linux 32
$ shasum -a 256 com.liberty.jaxx-2.2.2-x86_64.AppImage
2f567df3c89d796d75d3c10712d765bf9002ee3931f1a48e58aa40f700f55245Download for Linux 64
*Mac OS X Note: Depending on your system settings, the system might warn you that "Jaxx can't be opened because it comes from an unidentified developer." You can either change your system settings to allow apps from unknown developers in your "Security & Privacy" settings, or simply right click Jaxx → Open (as administrator), which will prompt you with a warning.