Blockchain allowed 17 million people to travel between Guangdong, Macau amid coronavirus pandemic

Macau and China’s southern Guangdong province have a mutually recognised health code system powered by blockchain. This allows both sides to validate the health status of travellers without directly exchanging personal data, hence complying with local privacy laws. — SCMP

Even amid a global travel standstill due to the coronavirus, more than 17 million people travelled between Macau and China’s southern Guangdong province since May.

This is thanks to a mutually recognised QR health code system using a crucial piece of technology: blockchain.