Systems involving a hub platform, communication network, and memory configured for processing data involving time-stamped/time-sensitive aspects and other features are disclosed. In one example, an illustrative system may comprise a hub computer platform and associated computing components configured to generate a plurality of portals including at least first and second portals, including aspects such as automatically updating information displayed therein in real-time between portals, automatically attaching and/or processing timestamps and identifier information that are attached to orders upon receipt and acceptance thereof, generating and/or processing information of an order file, generating, updating and/or interactively displaying various tabular and/or graphical information such as order and/or price discovery information that is automatically processed based on timestamps and/or other information, and/or generating other GUI features that, for example, may graphically display and continually update level-of-involvement information.