If information is physically fundamental, the fundamental "particle" would be some sort of bit. Planck's constant could be that bit.

All other particles would be derivative, and their being caused by some base rules.

Physics will only be complete when fully explained in terms of information, regardless of the physical reality of information. The two aspects of explanation are 1. the rules and 2. what are the bits? Perhaps both those things are one.

Perhaps bits are not fundamental and quaternary bits are, but that would still implicate information as fundamental.