Ask HN: Where to check YC alumni names?
Someone I know from Egypt is claiming he is a yc alumni.
I am not sure how to check if he really is?
Find the company and check the team page; use google to read up on the person. Caveats: sometimes people have the same name and yet they are not the same people, not all founders are always listed on the team page, especially not for companies that have pivoted, not all companies have a team page.
Success rate for this sort of thing is pretty good if you invest some time.