Circles is a money system based on individualized/mutual cryptocurrencies and a social graph of trust between these currencies. Its purpose is to distribute and maintain a globally accessible Universal Basic Income in a peer-to-peer manner. When new users join Circles, a new personal cryptocurrency is created for them on a smart contract-enabled blockchain. This currency is then regularly minted and added to their account, forming the basis of Circles' UBI properties. Users can trust the personal currencies of other users, which requires them to treat this personal currency as the same as any other Circles currencies they hold. As the social graph becomes more interconnected, these personal currencies converge into one single global monetary system.