Did you get some sort of receipt to show that the contribution was made in your name?
A donation made in your name doesn’t give you any benefit on taxes or whatever. I guess it would be proof that they weren’t lying about it but then they could just mock up a receipt if they were lying. The company would get any benefit and already has a bucket of money allocated. They are allowing you to direct a smidgen of it.
I was thinking more of a receipt from the charity itself with your name on it. A company that would steal the gift would have no trouble faking the receipt.
I don’t think there is a standard way of doing it. I give to charity on my own and didn’t take part in workplace charity stuff. When I give to charities on my own you can typically see who gave donations above a certain level on the website or a mailed newsletter (a lot are listed as Anonymous) and some are listed as something like “Jason Smith in loving memory of Harold Brown” or something. Maybe you could check that way.