Patent attributes
During operation, a first node coupled to the blockchain sends a transaction confirmation request for a target transaction to a second node, the transaction confirmation request comprising transaction data associated with the target transaction. The first node receives a transaction confirmation response from the second node, the transaction confirmation response comprising a first data block comprising at least an identifier of the second node, first encoded transaction data generated based on a predetermined encoding scheme, and a first confirmation result. The first node generates a second data block comprising at least an identifier of the first node, second encoded transaction data generated based on the predetermined encoding scheme, and a second confirmation result; and in response to determining that each of the first confirmation result and the second confirmation result indicates that the target transaction is confirmed, stores the first data block and the second data block in the blockchain.
