DO NOT RELY ON THIS TO PROTECT YOU FROM GETTING BRICKED!
This app verifies the malicious pokemon nsp and app without the garbage data to increase the size and verifies files that are flagged as garbage via NUT.
I just tested this program on a file that I know is corrupted and a fully complete download of the same DLC [0100F15003E65004]. The corrupt file weighing in at 119KB and the full file at 1.14GB both files verified as OK