Love it. I came into a use case for something like this a while ago, and ended up using a combination of goo.gl (to know when the person had clicked), and text converted to an image (to stop simple copy and paste).

Maybe you could also incorporate the second part. It's obviously not a guarantee the information won't be copied, but if you know you're sending it to someone non-technical, it can be made extremely difficult.

Congrats on the product though.