It’s more the other way around — you will know if you are NOT on the list, because you will hit the captcha at some point. (Since you asked UCgal, I checked and I had already whitelisted you).
I’ve already had some people ask to be whitelisted who were already on the list — I’d appreciate if people could confirm that they are not on the list (via hitting the captcha) before emailing me. There are just a lot of users and it will save me significant time if we do it that way.