According to Odaily Planet Daily, zkSync developer Matter Labs has filed trademark applications for "ZK" in nine countries, claiming that the term "zero knowledge" is the company's exclusive intellectual property, which has caused widespread dissatisfaction in the crypto industry. Polygon co-founders Sandeep Nailwal and Brendan Farmer, StarkWare CEO Eli Ben-Sasson, Polyhedra Network co-founder and zkBridge inventor Tiancheng Xie, and Turing Award winner and ZK-proofs co-inventor Shafi Goldwasser and other industry leaders signed an open letter calling on Matter Labs to withdraw its trademark application, calling it "oppression."
