Signs are written as SignWriting words with mathamatical names of ASCII characters from the set: ABLMRS0123456789xabcdef. Stable since January 2012.
SignWriting in Unicode (SWU)
Signs are written as SignWriting words with
an experimental Unicode character design that
overwrites the Sutton SignWriting Block
(U+1D800 - U+1D9FF) and uses Plane 4
for the Sutton SignWriting symbols.