From China Digital Space
Literally "mountain top" or "summit"; code for "incite subversion" (shāndiān 煽颠).
"Inciting subversion of state power" (shāndòng diānfù guójiā zhèngquán zuì 煽动颠覆国家政权罪), listed in Article 101 of China's Criminal Law, includes "spreading rumors or slanders or any other means to subvert state power or overthrow the socialist system" and is punishable by up of five years in prison, or more if the defendant is judged to be a "ringleader" or to have committed other crimes. Activist Liu Xiaobo was sentenced to 11 years in prison for the charge of inciting subversion.
Youfeizhu (@游飞翥): Zheyu News: (1) Butcher's statement on his detention (2) Charged with some crap crime, not summit, sorry for the length. (3) I decide my news. Sina, please don't block it. (May 21, 2015)