@sossy2015 Did you use the Online version? See if you can print out a copy. How to get or print a copy after filing
https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-get-a-copy-of-a-return-i-filed-thi...
If you efiled there should be an Electronic Postmark page. Probably near the end. That is your proof and signature. See if you can get that.
