They are added to the images I upload by WordPress at the end after the .png
http://modovis.com/wp-content/uploads/2015/12/Process-CMIcon600.png?8d1bca
http://modovis.com/wp-content/uploads/2015/12/Process-PDIcon600-1.png?8d1bca
http://modovis.com/wp-content/uploads/2015/12/Process-SMIcon600-1.png?8d1bca
http://modovis.com/wp-content/uploads/2015/12/Process-TGIcon600.png?8d1bca
``