https://www.siliconvalley.com/2021/06/18/california-launches-new-digital-tool-to-show-covid-19-vaccine-record/

Vaccinated Californians now have a new way to show they are inoculated against the coronavirus without carrying around a flimsy paper card.

The state on Friday launched a new digital tool that lets residents access their COVID-19 vaccine record from the state’s immunization registry.