https://www.ama-assn.org/find-covid-19-vaccine-codes https://vitals.sutterhealth.org/what-you-need-to-know-about-covid-19-vaccine-cards/ "What if I lose my card?" "Try not to lose your card. Keep it in a safe and secure place that you’ll remember until the time of your second dose. **Tip: consider snapping a photo of the card on your smartphone once your first dose is complete.** Making a photocopy is another option." So, apparently just a picture of your card on your phone is sufficiently theatrical to satisfy. "Where's you original card?" "Stored in a safe place in accordance with the published guidelines." "Well where is that?" "Well, not that it's any of your business, but it's locked safely away in the back of the bottom drawer of a large gray steel filing cabinet, in a steel lined vault, in the basement of the Banc Suisse, in Zurich. Right behind the sign that says, 'Beware of Leopard'. Happy?"