Hansfried Block wears many hats for the SPECpower group. As a European representative of the SPECpower subcommittee, he collaborates closely with Digital Europe and the Lot9 working group, and has made presentations at various worldwide events. He is responsible for the SERT Glossary and has provided considerable input to the SERT Design Document. He is a regular SPECpower_ssj2008 submission reviewer, and has contributed to every SERT-related ICPE paper submission created by the SPECpower team.