If the vaccine recipient has provided her/his mobile/email, then a link to download the certificate is sent to them. If not, the facility can download, print and give it. At any point in time, users can also go to public portal and retrieve the certificate by giving their mobile/email. In the case of India, an authentication system like Aadhaar can also be used to allow recipients to access their certificates in a secure way. With user consent, these can also be integrated with other applications such as India's Digilocker, CommonPass, TravelPass, and other digital health wallets.