Projects like Wrld Map and Karma Proof link real-life actions to on-chain systems using verifiable proofs.
Tools such as DUST.OPS and Detox-Hook prioritize wallet hygiene, MEV capture, and private transactions.
Solutions including 0xCollateral and MCPay.fun extend blockchain functionality into lending and API monetization without centralized control.
ETHGlobal Prague 2025 has named its ten finalist projects after reviewing 217 submissions. These projects, built during the event, span decentralized finance, on-chain gaming, blockchain-based reputation systems, and privacy-enhancing tools.
https://twitter.com/ETHGlobal/status/1929175623311949990
The selected teams focused on practical blockchain applications designed to operate in permissionless and trustless environments. The event took place in Prague, Czech Republic, and brought together developers from across the world.
Cross-Chain Tools and On-Chain Utility Projects
DUST.OPS introduced a wallet management tool that sweeps low-value or illiquid tokens across chains. It swaps these assets into ETH, utilizes Railgun for private transactions, and enables withdrawals to clean wallets. The tool automates asset consolidation with a privacy focus.
Decycle developed an on-chain cleanup mechanism that helps users remove obsolete or unnecessary smart contract deployments. The protocol incentivizes users to reduce blockchain clutter using transparent on-chain incentives.
DeFi Lending, Yield Optimization, and Payments
0xCollateral created a lending platform that issues loans without collateral. It uses Web2 credit data for borrower assessment and does not require identity checks or KYC. The system aims to bridge Web2 creditworthiness with Web3 liquidity.
Detox-Hook launched a Uniswap V4 hook that uses Pyth Network's oracle data to capture MEV (miner extractable value) opportunities. Profits from arbitrage are redirected to liquidity providers without external permissions.
MCPay.fun implemented a stablecoin-based API payment system modeled after the HTTP 402 code. It enables pay-per-use access to APIs without requiring API keys or user accounts.
Proof Systems and Reputation Protocols
Karma Proof introduced a protocol that links real-world good deeds to on-chain reputation. It issues soulbound NFTs and Karma Points for verified actions. The system stores contributions permanently onchain and unlocks rewards based on user history.
Wrld Map built a global travel verification system using zero-knowledge proofs and email receipts. Users can visualize their trips on a 3D globe and earn “Miles” on WorldChain as proof of travel.
Focus, Gaming Projects, AI, and Collaborative Tools
Pomodoki combined productivity and gamification in a Chrome extension. It merges the Pomodoro technique with a virtual pet and on-chain rewards. Built on Flow, the system rewards users who complete verified focus sessions.
Yetris introduced a blockchain-based version of Tetris. It records high scores using Yellow state channels and grants a Crown NFT to the top player. The leaderboard is verifiable and tamper-proof.
Conduct.chat built a conversational workspace powered by AI. It allows users to collaborate in structured dialogues and verify interactions onchain. The platform aims to support transparent communication between bots and users. ETHGlobal Prague recognized these ten projects for their technical execution, novel use of blockchain, and real-world application focus.
