: Digital fingerprints for every small "piece" of the file. This allows your torrent client to verify that the data received from other users is authentic and uncorrupted.

Help Center - How do I find the files inside the torrent? - BitTorrent

: The address of the tracker , a central server that keeps a list of users (peers) currently sharing the file.

: Includes the names of the files being shared, their sizes, and the directory structure.

: You open the .torrent file in a client like qBittorrent or uTorrent.