magnet:?xt=urn:btih:ddaec81d1e292a407cba26905159ec2b08d5624c&xt=urn:md5:655de57835cae1f990d26191e737cfd5&xl=213659149&dn=qt-mac-opensource-4.7.0.dmg&as=https://download.qt.io/archive/qt/4.7/qt-mac-opensource-4.7.0.dmg&tr=http://bt.qt-project.org:6969/announce