Those three things are not supplied / needed in my experience. You can put your work experience on your resume, and if an employer wants to verify then you can

Those three things are not supplied / needed in my experience. You can put your work experience on your resume, and if an employer wants to verify then you can supply a reference contact who can vouch for these things. When you do get laid off, usually there is a doc that outlines things like health care, effective date of termination, payment. If you don't have that, then I would ask for that and clarify it.