Media file processing method, device, storage medium and program product

The invention provides a media file processing method, device, a storage medium and a program product. The method comprises the steps of obtaining target information input by a first user for a media file; obtaining title information of the media file, generating a target character string according to the title information and the target information, and obtaining a target hash value of the target character string; and writing the target character string and the target hash value into a media file, and uploading the target character string and the target hash value to a blockchain for evidence storage, the target character string in the media file being used for displaying the target information when the media file is played, and the target hash value in the media file being used for comparing with the target hash value in the blockchain to verify the target information. According to the method and the device, the target information such as the signature and/or the presentation is added to the media file, the