magnet:?xt=urn:btih:f7543c7b66a773bb29b74ef40111d7a781cd9b7e&xt=urn:md5:df117a5dae42b3a60f9aa96a0a563fc1&xl=15634917&dn=qt-mac-opensource-desktop-4.0.0.tar.bz2&as=https://download.qt.io/archive/qt/4.0/qt-mac-opensource-desktop-4.0.0.tar.bz2&tr=http://bt.qt-project.org:6969/announce