Abstract: A system for secure, role-based exchange of information between a client and providers of services is described. The system includes a client device having a memory that includes a portion of the data relating to the client, a user access component, and an enforcement agent. The system also includes a central server running an authentication methodology and a roles server. The central server includes the data relating to the client. The system further includes an interface device capable of communications with the central server and capable of communicative coupling with the client device. The system is operable to, upon a communicative coupling between the interface device and the client device, activate the user access method, in conjunction with the authentication method, to ensure that the client is the proper holder of the client device.

Abstract: A system for supplying hydrogen gas to a lighter-than-air (LTA) vehicle includes a manifold having multiple vessels. Each vessel has a first chamber that is separated from a second chamber by a barrier. A trigger assembly integrated with the barrier allows a liquid to be combined with a reactant and a catalyst in the second chamber to form a chemical reaction to generate hydrogen gas. A pressure relief valve located on each vessel opens to allow the hydrogen gas to exit when a predetermined pressure is reached, and the hydrogen gas is supplied to the LTA vehicle connected to the manifold.