Antithesis, a testing tool used on the Ethereum network, has raised $105 million in Series A funding, led by Jane Street.

Antithesis, a startup focused on distributed system stress testing, has raised $105 million in Series A funding. The round was led by Jane Street, with participation from Amplify Venture Partners, Spark Capital, Tamarak Global, First In Ventures, Teamworthy Ventures, and Hyperion Capital, as well as individual investors including Patrick Collison, Dwarkesh Patel, and Sholto Douglas. The new funds will be used to expand the engineering team, increase automation, and develop global market channels.