As part of the Wizkit project, Carmit Hazay (Bar-Ilan Uuniversity) and Muthu Venkitasubramaniam (Georgetown University), both of Stealth subcontractor Ligero, together with Mor Weiss (Bar-Ilan) published their work “ZK-PCPs from Leakage-Resilient Secret Sharing” in the Journal of Cryptology.  A link to the publication can be found here.