https://techcrunch.com/2021/01/14/tech-and-health-companies-including-microsoft-and-salesforce-team-up-on-digital-covid-19-vaccination-records/

A new cross-industry initiative is seeking to establish a standard for digital vaccination records that can be used universally to identify COVID-19 vaccination status for individuals, in a way that can be both secure via encryption and traceable and verifiable for trustworthiness regarding their contents. The so-called ‘Vaccination Credential Initiative’ includes a range of big-name companies from both the healthcare and the tech industry, including Microsoft, Oracle, Salesforce and Epic, as well as the Mayo Clinic, Safe Health, Change Healthcare and the CARIN Alliance to name a few.

The effort is beginning with existing, recognized standards already in use in digital healthcare programs, like the SMART Health Cards specification, which adheres to HL7 FHIR (Fast Healthcare Interoperability Resources) which is a standard created for use in digital health records to make them interoperable between providers. The final product that the initiative aims to establish is an “encrypted digital copy of their immunization credentials to store in a digital wallet of their choice,” with a backup available as a printed QR code that includes W3C-standards verifiable credentials for individuals who don’t own or prefer not to use smartphones.