/usr/lib/x86_64-linux-gnu/libopenspecfun.so is in libopenspecfun-dev 0.5.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libopenspecfun.so.1.0
/usr/lib/x86_64-linux-gnu/libopenspecfun.so.1.0