DirectDemocracyP2P5 is an open source platform developed in JAVA and offering peer-to-peer and mobile ad hoc wireless communication capabilities. The platform offers an API supporting plugins, beside its main application: deliberative petition drives (aka citizens' initiatives with integrated argumentation) . An authentication-by-reputation technique based on digital signatures and peer review ,  is integrated into the platform via this main application. Each peer manages independently its database of items of interest. The items of interest are encapsulated as self-contained pieces of information and uniquely identifiable using a system of global identifiers (GIDs). Each GID consists of a combination of public keys with creation dates, or digest values. Communication is based on a combination of push and pull mechanisms.