I totally agree there are ways to modify files.
I have heard of 3rd party sites that will make gps runs for you etc.
I just wasn’t able to tell if therecwas a reasonable way to tell that yes, this file is unmodified, such as pulling it right off the watch and seeing some sort of creation stamp indicating when and by what is was created or modified etc
I have also read about tell-tals signs of people speed doping using some of these other sites too etc.
If anyone knows, it would be slowtwitch sleuths