US Patent 11037110 Math based currency point of sale systems and methods

A mobile wallet computer system may send a token to a customer computing device to share the token with a recipient computer system in exchange for payment for a service or a good. The mobile wallet computer system may receive, the token, a recipient public key associated with a MBC account of the recipient, and a transaction amount. The mobile wallet computer system determines whether the recipient public key is registered with the mobile wallet computer system. The mobile wallet computer system updates a ledger that lists a MBC balance of the MBC account of the recipient and the ledger that lists the MBC balance of the customer or transmits, to MBC processing nodes, a request to transfer the amount of MBC in a pooled MBC account of a financial institution to the MBC account of the recipient.