This is effectively the same idea to provide your ownership of a domain. For example, if you want to use webmaster tool from Google you'd either insert a text i

This is effectively the same idea to provide your ownership of a domain. For example, if you want to use webmaster tool from Google you'd either insert a text in some file or modify the DNS A record to contain the expected text. One thought is vouch and level of credibility by the person's profile. If a lot of people vocuhed for Maria or if Maria has a lot of active tweet and/or a lot of Github activity there is a good chance this is a real Maria. However, the activity-based credibility is easily forged and defeated so probably not a good idea to add, bur worth thinking about :)