I am sure that there must be a way to do this but I cannot for the life of me find it.
In an area that I am currently mapping there are a series of GPX traces (that download when I download OSM data) that do not look like tracks from a GPS receiver. They are disconnected line segments and seem to closely follow water features.
I am interested to know the source of these and whether they cover just a local area or a wider area - suggesting some form of automation. At worst they could be GPX traces from copyrighted material.
But how do If find, at the very least the originator of these tracks?