Babbitt News, on April 2, the reporter was informed that the world's first commercially available on-chain privacy protection technology was officially opened to the public and was independently developed by Ant Blockchain. At the same time, the technical paper was selected into ACM SIGMOD20, the highest gold content conference in the database, and became the first independent paper of a Chinese technology company's blockchain original technology in a class A conference. Its technical innovation and practical value have been recognized by the highest scientific research. It is understood that this solution is an on-chain privacy protection calculation model based on hardware TEE. It ensures that the cost of privacy protection calculation is minimized under the condition of high-speed growth of business data. User privacy data can be protected at zero cost on the ant blockchain No performance loss.