Um, one small difference, you have to be a resident of Alaska for at least a year, intend to remain a permanent resident and not be absent more than 180 days without a valid reason. [1]
All reasonable restrictions to apply to a national Basic Income program.
In what way is that a difference?
Living in Alaska for a year is a steeper obstacle than living most places.
You have to live here for a full calendar year before you can apply for the dividend. Even then, the dividend is only $800-$1200 per year, hardly enough to offset the higher cost of living in AK.
I think there are sufficient disincentives for living in Alaska to cancel that out.
As a US state, Alaska can't halt immigration to the state (at least not from US citizens.) If Alaska was it's own country, I would bet they would have pretty severe restrictions on immigration.