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More than 450 airlines can now use IBM’s blockchain-based vaccine passport

Updated: Nov 15, 2021

In April, travelers at London’s Heathrow airport had to wait as long as six hours to be cleared to fly. The bottlenecks were a result of airline agents struggling to make sense of the various Covid-19 health clearances travelers were presenting. Imagine small cards, stamped documents, and digital apps in various languages and formats. The lack of standardization was a killer.

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