A fourth artifact with Sneferka's name is found in the private Georges-Michailidis-Collection but its authenticity is questioned by archaeologists and Egyptologists, since its origin is unknown.

They are called Qau-Netjeru ("Elevations of the gods") and Ah-Netjer ("Divine palace") and appear in several stone vessel inscriptions from Qa'a's tomb at Abydos.

Egyptologist Kim Ryholt believes that Sneferka ruled during the midst of 2nd Dynasty and was to be identified with Neferkara I, attested in Ramesside sources.

Egyptologists such as Wolfgang Helck and Peter Kaplony believe that Sneferka and "Horus Bird" fought each other to gain the throne of Egypt.

A piece of evidence supporting this theory is the Horus name of Hotepsekhemwy which means "The two powers are reconciled", and could relate to a re-unification of the Egyptian realm after a period of discord.