Open-sourced Blockchain Technologies Bring Back Cross-border Tours between Chinese Mainland and Macao

SHENZHEN, China, Oct. 19, 2020 /PRNewswire/ -- From September 23 onwards, Chinese mainland resumed issuing visas for visitors to Macao. Thanks to the mutual recognition system of Macao blockchain health code and Guangdong health code launched in May, mainland Chinese tourists can apply...

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