How can I pull the source information indicated on the Candidate Profile.

Summary: We are looking to pull the source information that is stored on the Candidate Profile - not the submission that is associated with any requisitions.

Content (required): We are attempting to determine how someone got into the system as a candidate. We are hoping that the Profile Source will stay static. When a candidate is linked to an opening, that's a manual add but i've been asked to provide the initial source to the system. I'm not able to locate where the Source on the Profile is stored, kept, etc.

Version (include the version you are using, if applicable):