Nigeria’s Greenafrica Claims $100k Top Prize as Hedera Hackathon Draws 45,000 Participants

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.

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