In the context of Switch NSP files, "Verified" usually refers to a or a file that has been checked against a database (like NSP indexes or dat files).
Using unverified files on a modded console carries significant risks, ranging from minor software glitches to permanent hardware damage. switch nsp bad north verified
Avoid YouTube links claiming an “NSP installer” or any file host that asks for a password after download – those are almost always malware. In the context of Switch NSP files, "Verified"