Ptahil-Uthra alone does not constitute the demiurge but only fills that role since he is viewed as the creator of the material world in the Ginza Rabba, often holding an inherently malicious character.
[3] Subsequent scholars have deemed it more probably derived from the Egyptian theonym 'Ptah' and angelic 'il',[6][1][7] as originally conjectured by Mark Lidzbarski, although Carl H. Kraeling argued that the influence of Ptah on Mesopotamian syncretic Gnostic traditions is minimal, and opined that the name Ptahil was derived from the dialectal use of the verb (which usage he suggested to have arisen by analogy to the opening of the cosmic egg), and not vice versa.
[1] However, in some versions of the narrative, Ptahil originated as the son of the saviour uthra Hibil Ziwa, who inhabits the World of Light, and Zahreil (ࡆࡀࡄࡓࡏࡉࡋ).
[9] Zahreil is a lilith (ࡋࡉࡋࡉࡕࡀ) from the World of Darkness who dwells in the beds of pregnant women[10] serving to ensure the wellbeing of the child before and after birth; E. S. Drower describes her as a genius of childbirth.
[2]: 136 According to Brikha Nasoraia, the creation of the material world tibil occurs by God's Hayyi Rabbi command, but is delegated to a subservient emanation or uthra Ptahil with the assistance of Gabriel and others.