A decentralized system enabling privacy-preserving image sharing for public safety. Encrypted facial embeddings help identify criminals or missing persons, with FHE and real-time alerts empowering communities—all without compromising user privacy.

Fhenix
Prizes on Devfolio and ETHGlobal
Fhenix is the first Fully Homomorphic Encryption (FHE) powered L2 to bring computation over encrypted data to Ethereum
- Prize money awarded
- $43,000
- Prizes
- 29
- Winning projects
- 29
- Hackathons
- 9
- Largest prize
- $2,500
- Active
- 2024
What they reward
Tech their winners favour
Share of Fhenix's winners using it, against all entries at the same hackathons.
- hardhat24% of winners · 8% of entries
- typescript28% of winners · 12% of entries
- ethers14% of winners · 7% of entries
- solidity48% of winners · 27% of entries
- the-graph10% of winners · 6% of entries
- wagmi10% of winners · 6% of entries
- react34% of winners · 22% of entries
- ethereum28% of winners · 23% of entries
Recurring prizes
Tracks offered at more than one hackathon.
- Best use of Fhenix Stack6 hackathons · about $5,000 · last 2024
- Fhenix - Build Dapps on ETH L2 using FHE2 hackathons · about $5,000 · last 2024
Hackathons
- Bangkok Nov 15–17, 2024$5KRuby3$5K
- San Francisco Oct 18–20, 2024$5KRuby3$5K
- Singapore Sep 20–22, 2024$5KRuby5$5K
- ETHOnline 2024 Aug 23 – Sep 13, 2024$5KRuby3$5K
- Brussels Jul 12–14, 2024$5KRuby3$5K
- ZK Hack Kraków May 17–19, 2024$3K–3$3K
- ETHSeoul 2024 Mar 29–31, 2024$5K–3$5K
- London Mar 15–17, 2024$5KRuby3$5K
- ETHDenver 2024 Feb 23 – Mar 2, 2024$5K–3$5K
Winners
All 29 winning projects →FHE-enabled privacy preserving Uniswap v4 limit order hook, for top tier traders wanting to take advantage of the power of Uni V4 without revealing their secrets.
Preconfirmations at the applicatiSmart contract that provides soft block space inclusion and execution guarantees through incentive distribution using fully homomorphic encryption shielded auctions to allow fair blind auctionson layer
1v1 Football Prediction Battle on Chiliz with encrypted predictions via FHE and Farcaster Composer Actions.
Autobattler game that uses FHE (Fully Homomorphic Encryption) to hide defensive strategies. This is a complete re-write of a game written with ZK. This serves as a comparison between FHE and ZK.
FHE-based personalized advertising protocol: Displaying relevant ads while safeguarding user confidentiality.
Allow verified humans to perform encrypted trades and retain privacy from any source chain.
Pet ID is a blockchain-based Pet Identity Provider accesible worldwide
Plutus is financial assistant that can help you with managing money, boosting credit score and paying off debts with lowest interests.
A prediction market on the current hype of F1 as a telegram mini app with private bets enabled on Fhenix and Oasis, and a DAO for dispute resolution
Fugazi is the first fully on-chain dark pool built on Fhenix.
Revolutionizing Dating Through Blockchain Trust & Privacy










