Just to clarify, the applicant lists his or her addresses, and jobs, but does not have to provide proof of these addresses and jobs. Unless the application specifically asks for it, or unless they are planning to use it as part of the proof of the relationship or proof of their plans for their life in Canada.
For example, my husband (the applicant) listed all his addresses, as asked, but did not have to provide proof of any of them. However, the address where we stayed together, he did provide proof of it, because it was part of our relationship proof.
Likewise, he did not provide proof of his jobs, but did provide proof of his business experience, because we were using that as part of our plan about how we would live in Canada.