You can now verify the integrity of a video clip by saving a copy of the original export's calculated SHA-256 checksum provided on the dashboard and referring to it every time you need to compare a copy to the original.
To use this, click on the export underRecent Exports and thenCalculate checksum.
The 256-bit checksum will be printed underneath. Take a screenshot or copy-paste to save this in a safe place.
Every time you want to verify that any copy of the exported video is legitimate, you can calculate this copy's checksum and compare it to the one provided on the dashboard. If they match, the video is identical. Otherwise, it has been corrupted or tampered with.