The invention relates to a block chain-based cross-border trade
electronic document storage and
verification method and
system, and relates to the technical field of block chain-based data storage, and the
system comprises an account management module which is used for building a plurality of unified
authentication trusted accounts through a plurality of block chain nodes, and managing the authority; the document checking module is used for receiving an uploading request of the unified
authentication trusted account, determining the category of the
electronic document according to the uploaded
electronic document, checking the electronic document and determining the
security level of the electronic document; the document management module is used for storing the electronic documents to a block chain through a
smart contract according to the categories and security levels of the electronic documents; and the
document retrieval module is used for receiving a
document retrieval request initiated by the unified
authentication trusted account, querying a target electronic document and feeding back the
document retrieval request and the target electronic document. The electronic
document management system has the advantages of realizing
electronic filing and management of the documents, reducing the use of paper documents, improving the
management efficiency and reducing the risk of document loss.