magnet:?xt=urn:btih:da31aa30a6510686e85f8622410a6e89afaa0cce&xt=urn:md5:3c4dda3c9a9b17b535cbd39958ac1043&xl=40&dn=5.12.2-0-201903121945qtdatavisualization-documentation.7z.sha1&as=https://download.qt.io/online/qtsdkrepository/linux_x64/desktop/qt5_5122_src_doc_examples/qt.qt5.5122.doc.qtdatavis3d/5.12.2-0-201903121945qtdatavisualization-documentation.7z.sha1&tr=http://bt.qt-project.org:6969/announce