magnet:?xt=urn:btih:200f8fda4c5f98ad37f014fc74aa40e7cd8dd841&xt=urn:md5:2dfe193fa739597ada25662a42308800&xl=110051187&dn=qt-mac-opensource-src-4.4.2.tar.gz&as=https://download.qt.io/archive/qt/4.4/qt-mac-opensource-src-4.4.2.tar.gz&tr=http://bt.qt-project.org:6969/announce