Networked Electronic Transaction Confirmation

A computer-implemented method comprising:

• obtaining, by a request signaling device, a file representing an electronic transaction;
• receiving, by way of a wireless interface of the request signaling device, wireless signals from a plurality of computing devices that are proximate to the request signaling device;
• determining, by the request signaling device, a particular computing device associated with a strongest of the received wireless signals;
• and
• transmitting, by way of the wireless interface of the request signaling device and at a transmit signal strength that is inversely proportional to the strongest of the received wireless signals, the file to the particular computing device, wherein reception of the file causes a listener application executing on the particular computing device to display information regarding the electronic transaction.

A non-transitory computer-readable medium containing program instructions that, when executed by a processor of a request signaling device, cause the request signaling device to perform operations comprising:

• obtaining a file representing an electronic transaction;
• receiving, by way of a wireless interface of the request signaling device, wireless signals from a plurality of computing devices that are proximate to the request signaling device;
• determining a particular computing device associated with a strongest of the received wireless signals;
• and
• transmitting, by way of the wireless interface of the request signaling device and at a transmit signal strength that is inversely proportional to the strongest of the received wireless signals, the file to the particular computing device, wherein reception of the file causes a listener application executing on the particular computing device to display information regarding the electronic transaction.

A request signaling device comprising:

• a wireless interface;
• one or more processors;
• and
• memory storing program instructions that, upon execution by the one or more processors, cause the request signaling device to perform operations comprising:
• obtaining a file representing an electronic transaction;
• receiving, by way of the wireless interface, wireless signals from a plurality of computing devices that are proximate to the request signaling device;
• determining a particular computing device associated with a strongest of the received wireless signals;
• and
• transmitting, by way of the wireless interface and at a transmit signal strength that is inversely proportional to the strongest of the received wireless signals, the file to the particular computing device, wherein reception of the file causes a listener application executing on the particular computing device to display information regarding the electronic transaction.