  The first iteration of the proof format used by the SMT solver veriT was
presented ten years ago at the first PxTP workshop. Since then the format has
matured. veriT proofs are used within multiple applications, and other solvers
generate proofs in the same format. We would now like to gather feedback from
the community to guide future developments. Towards this, we review the history
of the format, present our pragmatic approach to develop the format, and also
discuss problems that might arise when other solvers use the format.
