US Patent 11252165 Cross-chain data trusted management methods and apparatuses

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing cross-chain data trusted management. One of the computer-implemented methods includes obtaining cross-chain data by a relay from a second blockchain based on a cross-chain request that is from a first blockchain, where a trusted execution environment (TEE) is loaded onto the relay. The relay obtains processed data by loading a preconfigured management rule set to process the cross-chain data based on a management rule comprised in the preconfigured management rule set. A response result is returned by the relay, where the response result includes an identity signature of the relay and the processed data.