What mechanism is proposed for determining eligibility? I have multiple citizenships but have not lived in any of the countries I'm a citizen of for quite some time, meanwhile I have lived in more than 20 other countries.

Is UBI proposed to be given to:

* every citizen of a country that implements it? (then, can I get more than one?)

* every resident of a country that implements it? (right now I have legal residence in three countries, but I know people who have zero.)

* something else?