BLOCKCHAIN-BASED ON-CHAIN STORAGE METHOD AND APPARATUS, TERMINAL DEVICE, AND MEDIUM

A blockchain-based on-chain storage method and apparatus, a terminal device, and a medium, being applicable to the technical field of blockchains. The method comprises: processing the service information of a user and at least one correspondingly uploaded file to be stored, so as to obtain the file information of the file to be stored; then compressing the at least one file to be stored, so as to obtain a compressed file; and uploading the file information of each file to be stored, the service information, and the first hash value of the compressed file to a blockchain node. Uploading the first hash value of the compressed file can avoid the problem that an association relationship between the files is missing caused due to the uploading of the hash value of a single file, and the user can manage, by means of the compressed file under the service information, all files to be stored, and can clearly display, by means of the file information of each file to be stored, the file information of the file to be sto