Code point
U+3198
Glyph appearance depends on your fonts.
U+3198
So<super> 4E0BU+3198 IDEOGRAPHIC ANNOTATION BOTTOM MARK is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Kanbun block.
Choose the representation you need, then copy its value.
U+3198
12696
㆘
㆘
E3 86 98
3198
00003198
%E3%86%98
\u3198
\u3198
\u3198
\3198