Cross-blockchain interaction methods, apparatus, systems, and electronic devices

摘要

One or more implementations of the present application provide cross-blockchain interaction. The message generated by the second contract in the second blockchain can be removed by using a cross-blockchain interaction terminal between the first blockchain and the second blockchain and by using a subscribing client corresponding to the blockchain node. 1 Determined by the blockchain node in the blockchain, the subscription client maintains a plurality of message queues that correspond one-to-one with multiple blockchain nodes to perform mapping to the corresponding blockchain node using the message queue. It is configured to. When the message generated by the second contract satisfies the subscription condition of the blockchain node, the first contract in the first blockchain is called by the blockchain node to trigger the corresponding contract operation.