Sefaria paginates the Jerusalem Talmud thus: 1a, 1b, 2a, 2b etc. This isn't the standard system for paginating Yerushalmi that I'm familiar with, which which is by tur rather than by amud. Can anyone help me with where Sefaria is getting their system from?
If it helps, it seems to be the same system that the Responsa Project has for various Yerushalmi commentaries (P'nei Moshe, Korban haEidah etc) so it must be from some standard edition but I don't know which one...