System and method for determining modifications of media files

One or more computer-readable storage media having computer-readable instructions embodied therein for execution by one or more processors, the computer-readable instructions comprising:

• receiving an indication that a media file is generated;
• generating an initial hash value of an initial instance of the media file;
• encrypting the initial hash value utilizing a private key that is associated with a user device in a trusted execution environment operating thereon;
• encrypting at least one contemporaneous characteristic with the initial hash value utilizing a public key associated with a private network;
• communicating the initial instance of the media file and the encrypted initial hash value with the encrypted at least one contemporaneous characteristic to a server on the private network for storage in a distributed electronic ledger;
• receiving another instance of the media file in the private network;
• generating a hash value of the other instance of the media file using the public key associated with the private network;
• identifying, as stored in the distributed electronic ledger, the initial hash value of the initial instance of the media file;
• determining that the hash value of the other instance is different from the initial hash value of the initial instance;
• determining the other instance of the media file cannot be attested based on determining that the hash value of the other instance is different from the initial hash value;
• and
• modifying content of the other instance of the media file.