Method and system for reducing storage overhead of blockchain nodes, and storage medium

A system for reducing storage overhead of blockchain nodes, comprising:

• a blockchain;
• and
• a plurality of nodes on the blockchain;
• wherein the blockchain is configured to establish a peer-to-peer transmission mechanism and a trust mechanism between the plurality of nodes;
• the plurality of the nodes comprise a data acquisition module, a data management module and a report generation module;
• the data acquisition module is configured to acquire network transaction broadcast data, and perform blockchain storage and accounting on the network transaction broadcast data;
• the data management module is configured to divide blockchain data into hot data and cold data;
• wherein the hot data is stored in each of the plurality of nodes, and the cold data is divided into N parts to be correspondingly stored in N nodes of the plurality of nodes;
• and
• the report generation module is configured to form a visual report of data processed by the data management module according to storage memory.