Just read about Circles, a proposition for a #UBI system implemented via personal cryptocurrencies, which gain value through a network of individual trust relationships. That is, the money you accumulate is only usable by someone who trusts it (and you), or someone who trusts someone who trusts it, and so on.
Regardless of the viability of such a system with whatever flaws it may have, I like the fact that it functions by way of groups of people trusting each other!