For those why don't have smartphones, there are websites with online QR readers, too. If it makes you feel better, chrisj, I had fits trying to read the code, at first, and thought it might not be a clue, either. Remember to lower your camera resolution, or it might not be able to read properly.
~ hayabusa ~
"All men can see these tactics whereby I conquer,
but what none can see is the strategy out of which victory is evolved."
- Sun Tzu, 'The Art of War'
OSCE, OSCP (Former - GPEN, C|EH - both expiring / expired)