Analysis of information sources in references of the Wikipedia article "Mozi" in English language version.
There has been considerable debate about the actual name of Mozi. Traditionally, Mozi was said to have inherited the surname 'Mo' from his supposed ancestor, the Lord of Guzhu [...], himself descended from Shennong the legenday emperor. The descendants of the Lord of Guzhu had the clan name 'Motai' [...], which later was shortened to 'Mo'. However, modern scholarship suggests that 'Mo' was not, in fact, the clan name of Mozi, as this clan name is not encountered during the Spring and Autumn and Warring States periods, but that 'Mo' was rather the name of the Mohist school itself, derived from the name of a criminal punishment (tattooing of the forehead of criminals; 'mo' literally means 'ink'), usually inflicted on slaves. [...] It signals the Mohists' identification with the lowest of the common people. The actual ancestral name and clan name of Mozi is not known.