The document provides information about Open Hack EU 3, a 34-hour hackathon event. It outlines the objectives of the event which are to learn what a hacker and open hack are, what will occur over the next 34 hours, and how to get the most out of the experience. It details the schedule of talks to be given, available resources like APIs and data, judging criteria, and speakers. It provides tips for participants such as forming a skilled team, practicing their pitch, finding subject matter experts, taking breaks, networking, and having fun.