What you've got there is a 16E.
I would probably put something along the lines of "56-IBU, Cascade/Centennial dry-hopped witbier similar to Deschutes Chainbreaker."
I'm Deschutes' biggest fan but haven't had that one. I'm assuming the standard coriander/orange peel are used? If so I think the use of the style name is sufficient to get the ingredients across, but if not I'd plan to mention them.