Whether you have a DocVerify account or not, it doesn't matter when it comes to viewing documents you may have signed through DocVerify.
To access your signed documents, simply create a Free Account https://www.docverify.com/tabid/83/default.aspx
, and after you sign in you will be able to see the last few signed documents. If you've signed more than what the Free account allows you to view, you can upgrade at anytime to view the rest.
Note: Document availability is dependent on the originators account still being an active account, and within the retention period for that document.