Ernst & Young (EY) announced on Tuesday that it is launching free software designed to help corporate customers use the Ethereum blockchain and has taken special steps to encourage adoption. A team of more than 200 blockchain developers in the company over the past year has been working on the development of the new Nightfall protocol, which will be released in May. The agreement was created for use cases such as supply chain, food tracking, inter-company transactions, and public finance. Nightfall uses zero-knowledge proof technology to support private transactions on shared ledgers. But unlike most similar platforms, Ernst & Young's software runs on top of the public Ethereum network.