A derivation from a Punic hand of the goddess Tanit is repeated widely in popular and semi-scholarly writing about North African amulets, and no chain of evidence is offered for it. No competing positive account of the origin has been established either, so this is a gap rather than a disagreement between camps.
What would resolve this A published series of hand-shaped protective objects with secure archaeological contexts spanning the Punic period, late antiquity and the medieval Maghreb, or a study demonstrating that no such series exists and that the form arises later and independently.
OpenPunic and Roman North African archaeology, together with the material culture history of the medieval MaghrebP. Bearman, Th. Bianquis, C. E. Bosworth, E. van Donzel and W. P. Heinrichs (eds.), The Encyclopaedia of Islam, 2nd edition