Item-generating method based on blockchain

A method of receiving a transaction request from a user device and operating a blockchain server connected to a service providing server corresponding thereto, the method comprising:

• receiving a transaction request from the user device;
• recording transaction information corresponding to the transaction request in a block, and transmitting the transaction request to at least one of other blockchain servers;
• transmitting the transaction information to the service providing server when the recipient address included in the transaction information corresponds to the address of the blockchain server;
• and
• recording item information in the block when the item information corresponding to the transaction information is received from the service providing server.

A method of operating a service providing server connected to a blockchain server corresponding thereto and a blockchain database corresponding thereto, the method comprising:

• recording transaction information in the blockchain database when the transaction information recorded in a block is received from the blockchain server;
• inquiring about the transaction information in the blockchain database when a check request of the transaction information is received from the user device;
• and
• generating item information corresponding to the transaction information when the transaction information is checked in the blockchain database, and transmitting the generated item information to the blockchain server so as to allow the item information to be additionally recorded in the block.