I mean President. Actually, “supreme federal notary” is probably the best term for it. Hey, somebody’s got to do it.
The degree of power actually conferred upon the President by the Basic Law is ambiguous. However, in practice, holders of the office treat it as a ceremonial, non-political one, and act in accordance with the advice and directives of the Federal Government.
“Mr Koehler’s re-election is a symbolic victory for Chancellor Angela Merkel ahead of national elections in September.”

“Surprem Federal Notary”
Yes!!