Transaction confirmation methods and apparatuses in blockchain network

A system comprising one or more processors and one or more non-transitory computer-readable memories coupled to the one or more processors and configured with instructions executable by the one or more processors to cause the system to perform operations in a blockchain network implemented by a first node of multiple nodes in the blockchain network, the operations comprising:

• in response to detecting an event indicating that one of the multiple nodes has persistently stored a batch of transactions or executed transactions of a subbatch of transactions, determining, by the first node, a current latest subbatch of subbatches of transactions for which the multiple nodes have confirmed;
• determining, by the first node, a target subbatch according to the current latest subbatch;
• determining, by the first node, a first quantity of the multiple nodes that have generated execution results that are consistent with an execution result of the target subbatch in the first node;
• determining, by the first node, a second quantity of the multiple nodes that have persistently stored a target batch to which the target subbatch belongs;
• and
• in response to the first quantity and the second quantity both meeting a consensus fault tolerance:
• determining, by the first node, that transactions in the target subbatch are confirmable transactions.

One or more non-transitory computer-readable storage media storing instructions executable by one or more processors, wherein execution of the instructions causes the one or more processors to perform operations in a blockchain network implemented by a first node of multiple nodes in the blockchain network, the operations comprising:

• in response to detecting an event indicating that one of the multiple nodes has persistently stored a batch of transactions or executed transactions of a subbatch of transactions, determining, by the first node, a current latest subbatch of subbatches of transactions for which the multiple nodes have confirmed;
• determining, by the first node, a target subbatch according to the current latest subbatch;
• determining, by the first node, a first quantity of the multiple nodes that have generated execution results that are consistent with an execution result of the target subbatch in the first node;
• determining, by the first node, a second quantity of the multiple nodes that have persistently stored a target batch to which the target subbatch belongs;
• and
• in response to the first quantity and the second quantity both meeting a consensus fault tolerance:
• determining, by the first node, that transactions in the target subbatch are confirmable transactions.