Except in these certificates you are given the SHA-1 and hash values which, if you wanted to, you could reverse engineer and verify yourself.Yes, like you can get your hands on the publicly disclosed info from Pfizer about the vaccines being 100% effective.
I don't care what the certificate says. My experience is the game has noticeably changed.
I suggest you go and prove me wrong
It's all there for you to do exactly that. Go and prove yourself wrong