A data processing apparatus for processing network data transmitted from a plurality of remote, distributed terminal devices, comprising: a logic processing device that: accesses, over one or more distributed networks, instructions that define initialization of a process of determining multi-user network sources and that specify to allocate one or more portions of a virtual record among the multi-user network sources by automatically simulating a digital exchange process in which the data processing apparatus is a receiving source to receive at least one of the one or more portions by a processing network.