I was having a kind of thought experiment...
Let's say that you create a new crypto-currency. Before the creation of the first genesis block you create 25 billion wallets with each 1 coin in it. The purpose of this would be that anyone on earth, could claim his 1 coin at anytime.
My question:
How would you prevent that someone claims more than 1 wallet?
PS: I didn't incorporate more details because this is not necessary for the question at hand.
It would require something unique and universal, like a passport, drivers license or national ID card, it depends on which country the person lives.
Works the same way as KYC on any exchange, poker site, betting site, etc, and it would be quite expensive.
That would be the biggest dox this planet has ever seen just in case. Also, if it requires such verification, how would the people be motivated to collect their share of the crypto? But that is another story. The only thing to claim it by every single person in this world is by submitting proof of identification like IDs and (possibly) hair samples for DNA testing (which is very expensive).