Web3 Dapp cross-chain system and method based on PoS consensus

The invention provides a web3Dapp cross-chain system and method based on PoS consensus. The web3Dapp cross-chain system comprises two dapp application modules, two cross-chain contract calling modules and a PoS consensus module. The two dapp application modules are respectively connected with the two cross-chain contract calling modules, and the two cross-chain contract calling modules are respectively connected with the PoS consensus module. According to the method and the system, data among all the dapps in the web3 world is circulated, all the dapps are really connected, and data islands among all the dapps are eliminated; according to the invention, the cross-chain contract calling module is used to convert cross-chain data wanted by the dapp into corresponding transaction information, and the problem of different data formats between different chains is solved; according to the invention, the PoS consensus module is used to verify and consensus transactions to be subjected to chain crossing, so that the