This is useful for torrents because you can hash any two torrents and if they point to exactly the same files, they will have identical hashes. However, there's a lot of information packed into that string!Ī magnet link contains a unique identifier, various parameters depending on the exact nature of the torrent, and, most importantly, a cryptographic hash of the torrent files.Ī cryptographic hash is a mathematical algorithm applied to data that results in a short unique string that represents that data. In essence, a magnet link is simply a string of text. The DHA is an important concept to remember in the discussion about magnet links. Torrent files can also contain extended information, such as a DHA (Distributed Hash Table) which allows each peer to act as part of a decentralized tracker network. It contains information about the files that are being shared, such as their names, sizes, and information needed to do integrity checks on the data.The file contains a list of torrent trackers (if any) that coordinate all the peers participating in the torrent.Torrent files don't contain any data of the files you want to download.Here's how traditional torrent files work: But magnet links are an alternative to traditional torrent files. We won't go into all the details about how BitTorrent works here. Magnet links are very different from torrent files and offer some advantages over them that all torrent users should be aware of. When you last downloaded a torrent file, you may have been offered a magnet link as an alternative.
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