  We calculate the one-loop quark box diagrams relevant to polarized and
unpolarized Deeply Virtual Compton Scattering by introducing an off-forward
momentum $l^\mu$ as an infrared regulator. This regularization approach allows
us to reveal the poles associated with the chiral anomaly in the polarized
scenario, as well as the trace anomaly in the unpolarized case. We provide an
interpretation of our findings in the context of pertinent Generalized Parton
Distributions (GPDs). Furthermore, we discuss the implications of these poles
on the QCD factorization pertaining to Compton amplitudes.

High Energy Physics - Phenomenology;Nuclear Theory