Select airports as well as airlines including United and JetBlue are experimenting with apps that use blockchain technology to verify if travelers are Covid-free before boarding #WSJWhatsNow https://t.co/q46q1CEGGs
@WSJ4 years ago
Select airports as well as airlines including United and JetBlue are experimenting with apps that use blockchain technology to verify if travelers are Covid-free before boarding #WSJWhatsNow https://t.co/nMcBeeGMH3
