what you download is solely your business, not mine or anyone else's.
if your download requires live render, some non-backtraceable data is temporarily stored in server's RAM. it's necessary for this feature to function.
in this case info about requested content is stored for 90 seconds
and then permanently removed.
no one (even me) has access to this data. official cobalt codebase doesn't provide a way to read it outside of processing functions.
you can check cobalt's source code
yourself and see that everything is as stated.