Is there a hook for confirmation requests?

Problem/Motivation

I'd like to be able to send a user back to the page where the confirmation request was issued. I figure I could do that if I could somehow hook into the request process to grab the email address or request id for the user and temporarily store that info Then, I can use the confirmation hook to retrieve that info and send the user to the same page where he made the request.

Steps to reproduce

A normal email_confirmer install. When an email confirmation request is made, an email is sent to the requester. When that person confirms the email address, the system can grab the email address of the person using hook_email_confirmer. What I would like to know is: Is there a way to signal to the system (via a hook or something else) that a confirmation request has been made?

Proposed resolution

If it doesn't exist, such a hook, or method, would be great for being able to implement the "return to origin url" logic I have in mind.