The term is a safety marker used by the homebrew community. It indicates that the file has been checked against a master database of MD5 hashes to ensure it is a "clean" dump. A verified file:
If you're hunting for a high-quality platforming experience, the Super Mario 3D World + Bowser’s Fury bundle is an essential addition to your collection. This package combines a remastered Wii U classic with a brand-new, open-world adventure that pushes the boundaries of traditional Mario gameplay. Why This Bundle is a Must-Play nsp super mario 3d world bowsers fury 010 verified
The string "nsp super mario 3d world bowsers fury 010 verified" The term is a safety marker used by the homebrew community
Neutral / Marketplace: NSP — Super Mario 3D World + Bowser’s Fury (010) — Verified. Clean dump, tested and working. This package combines a remastered Wii U classic
It would be irresponsible to write a guide on without discussing the elephant in the room: legality and cybersecurity.