US Patent 11393031 Blockchain-based method and apparatus for pre-exchanging available resource quotas

Blockchain-based methods and devices for pre-exchanging available resource quotas are disclosed. An example of method comprises: selecting, by a management node of a blockchain network, an object node as a pre-exchange node according to a pre-selection rule; determining, by the management node for the pre-exchange node, a resource quota; generating, by the management node, a target smart contract based on the resource quota, wherein the target smart contract is executable to deduct virtual resources corresponding to the resource quota from future increments of virtual resources of the pre-exchange node stored on a blockchain that is on the blockchain network; and storing, by the management node, the target smart contract on the blockchain.