Law is based on legal digital signature technology, which provides enterprises, governments and individuals with the signing and management services of electronic contracts and electronic documents. Fada is a leading cloud platform for electronic signature and electronic contract in China. Its main products and services include: contract template, contract editing, intelligent audit, contract signing, certificate storage and certificate issuance. At the same time, the law integrates online judicial expertise and lawyer services to realize the online closed loop of the whole life cycle of the contract. By February, 2022, the cumulative contracted volume of the platform of France University exceeded 6.3 billion, the daily average contracted call volume exceeded 20 million, the blockchain height exceeded 40 million, and it served more than 3,000 industry benchmark enterprises and 100 world/China top 500 enterprises.