The Hashgraph Association and Exponential Science have concluded a hackathon that attracted over 45,000 participants and generated more than 1,300 project submissions. Key Takeaways: On April 29, THA and Exponential Science named Greenafrica the top winner of the 2025 Hedera Africa Hackathon. The $1M prize pool fueled 1,300+ projects, proving Hedera as a top utility
