Uphold.com full membership requires your phone number, name and a scan of your passport as well as a picture of you holding your passport.
Basically it is impossible to setup more than one account with them. (sybil attack solved)
It is also free and easy for me or anyone to check an email address to see if they are a full member. (so outsourcing the verification to uphold)
As for how ubicoin has value I had 3 ideas, number 2 is my current favourite.
1.) simply raise money from governments, charities, big business, rich people who like the idea and then divide the amount donated between everyone.
2.) Raise money in the same way but use it to put a floor in the price of ubicoin through the bitshares market. so ubicoin would be free floating currency with a huge buy wall set at a low dollar value to stop it ever being completely worthless.
3.) Don't get any donations and issue the coin as a free floating currency like bitcoin and let market forces decide its value.
I believe the more fairly disrtributed a cryptocoin is the more likely it will have value.
I am building a website for this project that will hopefully be up soon.
me on twitter:
@JonnyBitcoin