A Magnet Link is not a traditional file format stored on a disk, but rather a type of Uniform Resource Identifier (URI) scheme used primarily in peer-to-peer (P2P) networks, most notably BitTorrent. Its core function is to identify a file based on its content rather than its location. The link contains a cryptographic hash (such as SHA-1 or BTIH) of the file being sought. When a user activates a magnet link, their P2P client uses this hash to query the Distributed Hash Table (DHT) network to find other users (peers) who possess the file. This method offers significant advantages over the older system that relied solely on .torrent files, as it removes the dependency on centralized tracker files to initiate the download. This makes the file sharing process more decentralized, resilient, and easier to share, as the link itself is just a small string of text that can be pasted anywhere. Magnet links are essential for modern, trackerless P2P sharing.