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- tracker
- magnet
** Magnet URIs consist of a series of one or more parameters, the order of which is not significant, formatted in the same way as query strings that ordinarily terminate HTTP URLs. The most common parameter is “xt” (“exact topic”), which is generally a URN formed from the content hash of a particular file, e.g.:
magnet:?xt=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C
** This refers to the Base32 encoded SHA-1 hash of the file in question. Note that, although a particular file is indicated, an availability search for it must still be carried out by the client application.
** Other parameters defined by the draft standard are:
** “dn” (“display name”): a filename to display to the user, for convenience
** “kt” (“keyword topic”): a more general search, specifying search terms, rather than a particular file
** “mt” (“manifest topic”): a URI pointing to a “manifest”, e.g. a list of further items
** application-specific experimental parameters, which must begin “x.”
** The standard also allows for multiple parameters of the same type to be used by appending “.1”, “.2”, etc. to the parameter name, e.g.:
magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xt.2=urn:sha1:TXGCZQTH26NL6OUQAJJPFALHG2LTGBC7
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