  The Causal Dynamical Triangulation (CDT) approach to quantum gravity is a
lattice approximation to the gravitational path integral. Developed by
Ambj\o{}rn, Jurkiewicz and Loll, it has yielded some important results, notably
the emergence of classical spacetime and short scale dimensional reduction.
However, virtually all the results reported so far have been based on a single
computer code. In this paper we present the first completely independent
verification of the CDT algorithm, and report the successful reproduction of
the emergence of classical spacetime and smooth reduction in the spectral
dimension of the 2+1 and 3+1 dimensional spacetimes.
