I am interested in using LaTeX in a way such that when I compile twice, I get the very same resulting file.
Compiling yields different hashes:
and so on. (This also applies when compiling to DVI at least a minute apart.)
My guess is that this is, at least, due to the Created and Modified metadata of the PDF. I followed this answer for fixing those, but I still get different hashes.
I found out that when compiling with
faketime '2008-12-24 08:15:42' pdflatex test the file will be reproducible. I conclude that there is no random data involved, but it's only dependent on the time.
My question is thus, can I influence that time for pdflatex from within my TeX document?