Oracle HackerNode, a series of events hosted by Chainlink as part of the Web3 Summit in Berlin from August 19-21, 2019, aimed to highlight the importance of decentralized oracles in the development of impactful smart contracts. The event featured a variety of activities including talks, panel discussions, live demos, a developer workshop, and design contests, all designed to engage developers and enthusiasts in the Chainlink ecosystem. Key speakers and participants included pioneers and innovators from projects, platforms, and data providers, who shared insights into integrating Chainlink oracles into decentralized applications and protocols. The event sought to foster collaboration and innovation within the Web3 community, encouraging the application of Chainlink's technology to bring real-world data onto the blockchain and advance the development of connected smart contracts.