Kernrechtsfrage
Whether the appellant's absence from the first-instance hearing was excused by the medical certificate.
Extrahierter Entscheid
No. The certificate showed total incapacity to work, not inability to attend the hearing.
Extrahierte Begründung
The appellant did not prove an inability to participate in the hearing; total work incapacity does not presuppose hearing incapacity, and his arguments were merely appellatory.