Method and system for processing blockchain-based real-time transaction

A blockchain-based real-time transaction processing method performed by a blockchain-based transaction processing system including a service-providing server and a plurality of blockchain nodes constituting a blockchain network, the blockchain-based real-time transaction processing method comprising:

• performing, by the service-providing server, a first process, the first process comprising:
• receiving a processing request for a target transaction from a terminal of a payer, wherein the payer is a first user of the blockchain network,
• transferring the processing request to a first blockchain node among the plurality of blockchain nodes in response to the receiving, and
• acquiring a verification result for the target transaction from the first blockchain node;
• when the verification result indicates that the target transaction is valid:
• performing, by the service-providing server, a second process, the second process comprising transferring a transfer amount of electronic currency from an electronic wallet of the payer to an electronic wallet of a payee according to the target transaction, and
• performing, by a second blockchain node among the plurality of blockchain nodes, a third process, the third process comprising:
• recording data for the target transaction in a new block, and
• spreading the new block over the blockchain network,
• wherein the second process and the third process are performed in parallel.