What are these companies timestamping though? That's what I meant to ask. I know there is a need for the service or there wouldn't be parties offering it, I jus

What are these companies timestamping though? That's what I meant to ask. I know there is a need for the service or there wouldn't be parties offering it, I just don't really know specific examples of uses for it because I never came across any myself. It appears to be a rare need to me, but you make it sound like some companies would want to do this so much that it's worth automating, but then I still don't know what those companies do or want timestamped by a third party (be that a notary or a blockchain). The two Wikipedia articles I found on timestamping aren't really about timestamping of this kind. (https://en.wikipedia.org/wiki/Timestamp https://en.wikipedia.org/wiki/Timestamp and https://en.wikipedia.org/wiki/Timestamping_(computing) https://en.wikipedia.org/wiki/Timestamping_(computing))