While streaming is not a "file," a Tidal HiFi subscription with download permissions allows you to cache an offline 320kbps AAC (equivalent quality). Use a download manager at your own risk, but the official app preserves fidelity.
In unofficial circles, "verified" often appears on forums (e.g., Reddit r/riprequests, SoulSeek) or private trackers. It typically means: madcon beggin 320kbps verified