US Patent 9704157 System and method for a mobile wallet

A computer-implemented method includes receiving a request for a code to provide to a merchant, the code being generated for the merchant to display to an account holder, generating the code, including embedding in the code a transaction identification number, a geographic location of the merchant, a timestamp, sending the code to the merchant for displaying to a mobile device to scan, receiving an amended code from the mobile device to transfer funds to the merchant from an account held by the account holder, and sending the requested funds to the merchant upon verifying a geographic location of the mobile device is within a predetermined distance of the geographic location of the merchant.