The code on the 2fa coins used to lead you to the public address for each coin on the website when it was working
I have all my 2fa .1 coins in slabs from icg where they also went through the extra effort to put the actual 1st bits of the public addresses on the slabs, instead of just the code. I use the 1st bits to verify funding of each and every 2fa coin I have I'll add pictures as examples of what I mean
https://imgur.com/a/m7t1pbT