Registration is now open for the Spring 2021 Chainlink Virtual Hackathon, a global event running from March 15 to April 11, 2021, aimed at developers of all experience levels interested in building smart contract applications using Chainlink's oracle network. Participants will have the opportunity to compete for a share of an $80k+ prize pool across various categories such as DeFi, gaming, and open projects, judged by industry leaders like Chainlink Co-founder Sergey Nazarov. The hackathon offers support from engineers and industry leaders, allowing developers to gain hands-on experience with Chainlink's range of oracle functions and access resources, workshops, and mentorship. Additionally, projects utilizing Chainlink and sponsor technologies can vie for over $45k in additional sponsor prizes, with notable sponsors including Solana, Aave, and Polygon. Participants are encouraged to join the Chainlink Discord to network, find teammates, and access educational materials to maximize their hackathon projects' success.