Digital content integrity verification systems and methods

A method performed by a user system comprising a processor and a non-transitory computer-readable storage medium storing instructions that, when executed by the processor, cause the user system to perform the method, the method comprising:

• receiving a request to validate a first piece of digital content;
• generating a first trusted ledger query, the first trusted ledger query comprising a hash of the first piece of digital content;
• querying a trusted assertion management system managing a first trusted ledger with the first trusted ledger query to determine whether the first trusted ledger comprises at least one entry that comprises the hash of the first piece of digital content;
• receiving a first response from the trusted assertion management system, the first response indicating that the first trusted ledger comprises a first entry, the first entry comprising the hash of the first piece of digital content and information associated with at least a first trusted processing environment used to record the first entry in the first trusted ledger;
• and
• rendering the first piece of digital content to a user of the user system in connection with an indication, the indication being based, at least in part, on the received first response from the trusted assertion management system.