Abstract A model of the universe is developed using a constructive approach. It is a deterministic, discrete, finite (including time), spatially three-dimensional structure with an array of integer registers attached to each node. Information (bits) travels through the lattice mainly as spherical wavefronts at the speed of light, being eventually reissued when interacting. These collisions are assisted by an omni-reaching superluminal messenger and by a binding property. Motion is achieved with the combination of a kinematic rule plus a borrow/return scheme with the vacuum. The asymmetry of matter and antimatter and the Cosmic Microwave Background Radiation are explained when a new charge, the duality, is added. Moreover, as an economic the...