Open market system with enhanced security by applying blockchain

摘要

The open market platform system that processes information exchange on a series of open market transactions accompanying product sales between a plurality of consumer (customer) terminals and a plurality of open market entrants according to the present invention based on a private block chain is a block chain a consumer terminal 100 for requesting a product estimate request or product payment through the data-based cloud platform 400; an open market management server 200 that receives a product quotation request or a product payment request from the consumer terminal 100; Transaction information between the supplier server 300 and the consumer terminal 100, the open market management server 200, and the supplier server 300 for uploading information about the sale product to the open market management server 200 It is characterized in that it comprises a transaction record storage 500 for storing.