US Patent 11176524 Math based currency credit card

Embodiments include a method of performing a math based currency (“MBC”) transaction. The method includes receiving, from a recipient computer system, information regarding an MBC backed credit card account, information regarding a recipient account and an amount of funds to be transferred to the recipient account from the MBC backed credit card account. The method further includes verifying, by the financial institution computer system, that the amount of funds that are available in the MBC backed credit card account. In various embodiments the method includes updating, by the financial institution computer system, an overlay ledger to increase the balance owed by a customer that holds the MBC backed credit card account.