magnet:?xt=urn:btih:242a97292714c4b25c8b637543d557327e60c43d&xt=urn:md5:b46ff7c7507f7e126abc6d74277b7e8f&xl=6103783&dn=qtdatavis3d-opensource-src-5.7.1.zip&as=https://download.qt.io/new_archive/qt/5.7/5.7.1/submodules/qtdatavis3d-opensource-src-5.7.1.zip&tr=http://bt.qt-project.org:6969/announce