Block chain evidence storage method and related equipment

The invention provides a block chain evidence storage method and related equipment, and specifically, firstly, a data owner uploads a target file to a third-party platform; then according to the uploaded target file, a local virtual machine of the data owner calculates a verification script of the target file and uploads the verification script to a block chain; and then the data requester obtains the target file from the third-party platform, obtains the verification script of the target file from the block chain, and verifies the obtained target file through the local virtual machine to obtain a final verification result. Through calculation and verification of the hash value and the verification script of the target file in the local virtual machine of the user, calculation of the hash value and generation of the smart contract on a third-party platform are avoided, and meanwhile, the problem that the smart contract occupies more block chain storage resources is effectively solved through verification in t