/usr/share/qt5/doc/qtwebchannel/qtwebchannel.qhp.sha1 is in qtwebchannel5-doc-html 5.9.5-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1
da39a3ee5e6b4b0d3255bfef95601890afd80709