From Taproot to Uniswap: Sign on Bitcoin, trade on Polygon. Hybrid relayer, zero trust bridges
$7,500 · Citrea · All-In Bitcoin · +3 more
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Citrea
Citrea is the first ZK Rollup that scales Bitcoin while preserving its security and decentralization. By ensuring on-chain verifiability and data availability directly on Bitcoin, Citrea makes it possible to build everything on Bitcoin. Citrea is fully EVM-compatible, which means that anyone can utilize smart contracts to build Bitcoin Applications, ₿apps. With Clementine, Citrea’s trust-minimized bridge (1-of-N), Bitcoin’s trillion-dollar asset base can finally be utilized in DeFi and money markets, unlocking massive untapped liquidity. As Bitcoin’s execution layer, Citrea brings smart contracts to Bitcoin without needing any change its consensus or current form.
- Prize money awarded
- $30,000
- Prizes
- 12
- Winning projects
- 12
- Hackathons
- 3
- Largest prize
- $4,500
- Active
- 2025
What they reward
Hackathons
- Buenos Aires Nov 21–23, 2025$10KGold4$10K
- New Delhi Sep 26–28, 2025$10KGold4$10K
- Taipei Apr 4–6, 2025$10KGold4$10K
Winners
All 12 winning projects →
Progressive Liquidation Storm Protection for ANY Lending Protocol and other DeFi
$6,250 · Zircuit · Best DeFi Project on Zircuit · +2 more
A decentralized p2p between Crypto and cash with Trusted Local Businesses
$5,000 · Rootstock · Freestyle Track · +1 more
Stochastic AMMs using Geometric Brownian Motion (GBM) for Smarter Liquidity
$4,500 · Citrea · DeFi Bapps
Gamified housing market predictions. Bet HOBO tokens on real property prices.
$4,000 · Citrea · Best Degen Bapps (Bitcoin Applications)
Playroom is a wallet for kids, Bitcoin-based child savings — built for long-term and positive value.
$4,000 · Citrea · Experimental DeFi ₿apps · +1 more
FitterCoin pays you to stay fit—earn crypto just for doing your regular workouts.
$3,500 · Self · Best Self onchain SDK Integration · +1 more
Privacy-first Lightning liquidity mining for Citrea DeFi using Schnorr signatures ⚡
$3,000 · Citrea · Open Innovation
More accurate, more rewarding. Financially incentivized BTC price predictions visualized as heat map
$3,000 · Citrea · Best ₿app on Citrea · +1 more
Borrow against BTC, earn real yield, and stay stable with user-set rates. Powered by ZEST.
$3,000 · Citrea · Best ₿app on Citrea
No-loss. Play daily, win up to 3x per week. Yield funds prizes. Your principal stays safe
$2,000 · Citrea · Best Degen Bapps (Bitcoin Applications)
Efficient DeFi - ERC1155 tokens enable stacked options and next gen derivates
$1,500 · Citrea · DeFi Bapps