In various embodiments, a central server grants access to a plurality of anonymous one-time-usable, time-sensitive encrypted tokens that identify consumer purchase orders. A plurality of certified merchant servers are certified by being provided with an application to securely connect the certified merchant servers to the central server for, among other things, transmitting purchase order data to the central server for use in generating the tokens. A plurality of financial institution servers can also be certified by being configured for use with an application that enables secure connection to the central server for, among other things, requesting the tokens.