When you create a PDF metadata, the date, subject, author, etc... often gets included, the Judiciary's system doesn't clear them so they stay on
still other docs were not stripped and don't appear to have been renamed
Metadata - data in a file that is about that file - author, date of creation, date of modification, etc... - this data often added every time a file is edited and can be used to track the files path
hls.harvard.edu/dept/its/what-…
for example when Koch Brothers backed groups created the Tea Party of the infamous Brooks Brothers Riot of 2000