nothing specific, obviously... but you still must provide proof via the standard accepted documentation at the time
which, in this case would be a birth certificate. the BC gives us location of birth as well as age. parentage proving natural born status must also be provided, otherwise the individual could have foreign allegiances by birth, which the founders were looking to avoid.
The Constitution has no requirements as to documentation. This is no doubt because the Founders assumed the Electoral College would actually function as intended, and any proof of eligibility would be demanded by them.
In actual fact, of course, the EC never functioned as intended, except in its first two meetings.
We have had almost four years now since the last election. We have 50 states. Any one of those states could have passed a law spelling out required documentation to be on its ballot. None have.
To me that indicates quite clearly that we aren’t really serious about the issue.