blog

Join the Hedera22 Hackathon: Hello Smart Contracts

March 17, 2022
Hedera Team
Hedera
Hedera provides secure, scalable infrastructure for real-world decentralized applications in finance, AI, and sustainability, governed by global enterprises.

Smart contracts open a world of possibilities to create decentralized applications that reduce our reliance on intermediaries and change industries. With over $400,000 in prizes across 16 challenges, we’re eager to announce our Hedera22 Hackathon: Hello Smart Contracts.

With support from The HBAR Foundation, Avery Dennison, BCW, Buidler Labs, Calaxy, Circle, Filecoin, Google, GSR, HashPack, hashport, HeadStarter, LSE, LG Electronics, Toko by DLA Piper, and UCL, Hedera22 Hackathon is your chance to compete for over $400,000 in prizes and try out the new Hedera Smart Contract Service which features:

  • EVM compatible, Solidity support

  • 15 million gas / second with finality in seconds

  • Carbon negative transactions

  • Support for Hedera Token Service tokens and NFTs

For those just getting started with smart contracts or Hedera, the 6-week hack provides ample opportunities, workshops, and support to help get you up to speed. If you can’t wait to get started try out the tutorial deploying my first smart contract on Hedera.

Challenges & Prizes

Now, to the good stuff. Starting March 31st, teams of up to five will compete across 15 challenges with rewards in hbars and USD.

With an emphasis on Solidity smart contracts and their ecosystem, challenges are available for:

  • Global winners. 1st, 2nd, and 3rd place overall winners will take home their portion in grand prizes totaling $300,000.

  • DeFi protocols. Build your own DeFi lego or lending protocol.

  • Ecosystem tooling. Support transaction signing, deployment, and community building.

Check out the hackathon’s Dev Post page for a complete breakdown of challenges and their prizes. The grand prizes will be judged by:

  • Dr Carsten Sørensen, Reader (Associate Professor) in Digital Innovation at LSE
  • Debra Farber, CEO & Ethical Tech Advisor at Principled, LLC
  • Donald Thibeau, Co-founder and Chief Strategy Officer at HBAR Foundation
  • Jennifer Kim, Founder & CEO at SEUNwater
  • Dr. Leemon Baird, Co-founder & Chief Scientist at Hedera
  • Michael Ku, VP, Global Clinical Supply at Pfizer
  • Samuel Byungsun Park, Task Leader iLab Blockchain Task at LG Electronics
  • Scott Thiel, Partner at DLA Piper

TL;DR

  • Registration opens: March 17th, 2022

  • Hacking: March 31st at 9 am PT – May 16th at 11:49 pm PT (6 weeks)

  • Team Size: Up to 5 team members

  • Prizes: $430,000+ USD in hbars and additional sponsor prizes

Register now and join us on discord to start finding your team. We can’t wait to see what future you’ll build. 

Back to Blog

discover

See more articles

October 8, 2026

Introducing Hedera Agent Accounts

Hedera Agent Accounts give AI agents programmable, non-custodial spending accounts on Hedera. Set limits and approved merchants on-chain, and your private keys never leave your wallet. This new approach measures
Read More
October 1, 2026

Introducing MirrorNodeAccountBalanceQuery: The SDK-Native Migration Path for AccountBalanceQuery

MirrorNodeAccountBalanceQuery is available now in the JavaScript, Java, and Go Hiero SDKs, giving developers a native way to read an account’s HBAR balance from the Mirror Node REST API without
Read More
Hedera Branded-CLPR-LFDT
September 24, 2026

Hedera Contributes Hashgraph-Developed CLPR to Linux Foundation Decentralized Trust Labs

Donated by Hedera, CLPR, the cross-ledger protocol developed by Hashgraph, is now an open source lab under Linux Foundation Decentralized Trust – allowing the open-source community to help shape, test
Read More