On May 31, members of the Zhejiang Digital Economics Association received a unique "digital ID card" – blockchain membership card. The Zhejiang Digital Economics Association became the first organization to produce and issue membership certificates using blockchain technology. It is understood that the member certificate of the Zhejiang Digital Economics Association is based on the original chain technology, and the member name, the academic position, the certificate number and the issuing authority are simultaneously registered to the original chain to make it unique. Block ID and timestamp. The picture below shows the certificate of the Society of Babbitt CEO and Director of the Blockchain Committee of the Digital Economics Association of Zhejiang Province.