Huawei Technologies Co., Ltd. has obtained a patent entitled "Settlement Method Based on Blockchain, Blockchain Node and Client", with authorization announcement number CN110310107B and application date of March 2018.

The patent abstract shows that the disclosed implementation example in this application relates to a blockchain settlement method, including: a first blockchain node receiving a first original bill sent by a first client and synchronizing it to the blockchain; the first blockchain node processing the first original bill based on a smart contract to obtain the first settlement result and sending it to a second blockchain node; the first blockchain node receiving a first confirmation message returned by the second blockchain node, which is used to indicate the result of the reconciliation between the second blockchain node and the first original bill based on the smart contract; the first blockchain node determining whether the first confirmation message carries information indicating that the reconciliation of the first settlement result has passed; if the information indicating the reconciliation of the first settlement result has passed is carried, the first blockchain node synchronizes the first settlement result to the blockchain; the first blockchain node sends the billing data generated based on the first settlement result to the first client.