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About

1inch is a unified DeFi ecosystem, built around the DEX aggregator with the best swap rates. Swap, hold & track digital assets - and ship scalable, secure applications with the complete Web3 stack. 1inch protocols access hundreds of liquidity sources across 12+ chains, including Solana, for secure trading at the best rates. Builders can unlock them all with 1inch Developer Portal: 17 APIs that bring you the technologies you need to scale. The 1inch Swap API gives you optimized routes with the new Pathfinder algorithm; Fusion and Fusion+ are the building blocks of intent-based and cross-chain swaps, with MEV protection and zero gas fees as standard. The rest offer everything from spot price and node access to limit orders and dynamic gas pricing. With complete usage statistics and API management, custom plan configuration, and a one-click Swagger UI - 1inch APIs and the Developer Portal give you the tools and adaptability you need to build your project.
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About

Rootstock is the top and longest running Bitcoin Sidechain, aiming to address the shortcomings of Ethereum by leveraging Bitcoin's unmatched stability, security, and economic power. Rootstock uses Solidity programming language, making it fully EVM compatible. You can build any EVM dApps and products on Bitcoin using Rootstock without any additional tools or knowledge. This is a unique opportunity to build the foundations bridges between Ethereum, Solidity and Bitcoin.
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About

Flow is a layer one blockchain with a powerful smart contract language (Cadence) and full EVM equivalence (any Solidity, smart contract, or protocol that works on Ethereum or an EVM L2 works on Flow). The network was designed from the ground up to enable consumer crypto applications that scale to mainstream audiences and seamlessly connect to digital ecosystems. It is based on a unique, multi-role architecture, and designed to scale without sharding, allowing for massive improvements in speed and throughput while preserving a developer-friendly, ACID-compliant environment. Flow has been architected with a clear vision for the future of consumer crypto, and meticulously designed to address the shortcomings of earlier blockchains to ensure scalability, usability, and efficiency are not simply an afterthought. By incorporating critical protocol-level primitives, such as account abstraction and on-chain randomness, as well a powerful transaction model and scalability without sharding, Flow sets itself apart as a blockchain made for those interested in building apps for widespread adoption and developer-friendly innovation.
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About

First announced in April 2021, the Pyth Network is the largest and fastest-growing first-party oracle for real-time asset price data and random numbers. Pyth delivers over 1500 low-latency price feeds across digital assets, FX, ETFs, equities, and commodities to more than 100 blockchain ecosystems, securely and transparently. The Pyth Network comprises some of the world’s largest exchanges, market makers, and financial services providers, who contribute their proprietary price data to the Pyth oracle for on-chain aggregation and distribution to smart contract applications. Pyth introduces a pull oracle design which empowers apps to request or pull the latest price update to their native blockchain on demand. The Pyth Network has secured more than $300B in trading volume across hundreds of Web3 and Web2 applications.
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About

Hedera stands apart as a leading EVM blockchain through its distinctive developer experience. Developers of all backgrounds can leverage familiar tools like Solidity or SDKs in JavaScript, Rust, Python and more* to build breakthrough applications. It is powered by the hashgraph consensus algorithm which enables 10,000+ TPS, 3s finality, low fees priced in USD, and the highest grade (aBFT) of security. -- *Hedera also has SDKs for Go and Swift!

Prizes

🤖 AI on Hedera$3,500
🥇
1st place
$2,000
🥈
2nd place
$1,500
Build innovative applications, agents, tooling, or infrastructure that combine AI/ML (including LLMs and autonomous agents) with Hedera network services. The focus is on demonstrating novel AI‑blockchain integrations that create real utility for developers or end‑users.

Qualification Requirements

1. Utilise at least one Hedera service: Smart Contracts (EVM), Token Service, Consensus Service, Scheduled Transactions, or Mirror Node. 2. Incorporate AI in a material way e.g. Hedera Agent Kit SDK, Hedera Eliza Plugin, Federated Learning, AI Data Marketplaces. 3. Provide all source code in public GitHub repo(s) 4. Verify any smart contracts on Hashscan 5. Include a demo video (≤ 5 minutes) explaining what was built and how to run it Optional enhancements earn extra points: - Use multiple Hedera services - Create high quality documentation / developer resources

🏎️ Hedera EVM: Smart Contracts & Cross‑Chain Integrations$3,500
🥇
1st place
$2,000
🥈
2nd place
$1,500
Build and deploy innovative Smart Contract based applications on Hedera. The focus is on leveraging Hedera's EVM compatibility and integration into the Ethereum ecosystem.

Qualification Requirements

1. Deploy a Smart Contract on Hedera Mainnet, Testnet, or Previewnet using the Hedera EVM. 2. Verify all Smart Contracts on Hashscan 3. Provide all source code in public GitHub repo(s) 4. Include a demo video (≤ 5 minutes) explaining what was built and how to run it Optional enhancements earn extra points: - Use Oracles (Chainlink, Pyth, Supra) for real time price feeds - Integrate Bridges (LayerZero, HashPort, Chainlink CCIP) for cross-chain interoperability - Build with the HTS System Contracts for a hybrid EVM and Native Service application - Native Hedera wallet flow (HashPack, Kabila, MetaMask Snap) - Create high quality documentation / developer resources

🎉 Hedera Overall Winner$3,000
The Overall Winner is the best project out of both AI and EVM tracks. See more detailed descriptions in the respective track's section above.

Qualification Requirements

For this track, you must qualify for either the AI on Hedera Track OR the Hedera EVM Track. See more detailed descriptions in the respective track's section above, including optional enhancements to earn extra points.

About

Polygon is the fast, low-cost blockchain powering real-world assets and global payments, used by millions every day.
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About

Decentralised naming for the new internet.
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About

Building the world’s largest identity and financial network to serve as a public utility, giving ownership to everyone.
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About

The Uniswap Foundation works to advance DeFi by providing critical support for protocol innovation, developer success, and governance empowerment. Over the last year, Foundation initiatives have driven the growth and development of Unichain, Uniswap v4, and the industry-leading work of more than 100 grantees.

Prizes

🪝 Build with Uniswap v4 Hooks $10,000
🥇
1st place
$4,000
🥈
2nd place
$3,000
🥉
3rd place
$2,000
🏅
4th place
$1,000
Uniswap v4 introduces Hooks, smart contracts that let developers customize swap fees, liquidity logic, and trading behavior at the protocol level. This bounty is an open track for projects that push the limits of what’s possible in DeFi innovation using Hooks, with bonus points for those deploying on Unichain.

Qualification Requirements

A user interface is not mandatory, but projects must provide clear evidence of functional code. Each team must submit the following: - GitHub Repository – A well-documented repo with clean code - README.md – Instructions on setup, usage, and functionality - Demo Link or Setup Instructions – Either a hosted live demo or clear steps to run it locally - Demo Video (Max 3 min) – Showcasing the project, features, and why it matters

About

We drive breakthroughs in computing to push humanity forward.
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About

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.
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About

The Graph is a decentralized indexing and querying protocol for onchain data. It is the original decentralized data marketplace that introduced subgraphs, the most flexible way of indexing onchain data that builders can fully customize according to their needs. Subgraphs have become web3’s standard method of indexing and accessing onchain data. Since its launch in 2018, thousands of builders have developed tens of thousands subgraphs across 40+ blockchains - including Ethereum, Base, Arbitrum, Optimism, Polygon, Celo, Fantom, Gnosis Chain, Avalanche, and more.
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About

Fetch.ai is a decentralized network built to power autonomous AI agents that can discover, connect, collaborate, and transact with other agents seamlessly. The Fetch.ai ecosystem enables developers and users alike to build intelligent, self-operating systems that interact across the digital and real world. At the core of the platform are two integrated products: ASI:One: A family of agentic LLMs that interact with agents from Agentverse to expand their capabilities and perform real-world reasoning. These models communicate via multi-agent protocols and scale by invoking services from the broader agent network. Agentverse: A developer platform designed for full control and extensibility. Built on the uAgents framework, Agentverse allows developers to create, host, and register agents that are interoperable across the Fetch.ai ecosystem. It provides built-in support for agent-to-agent messaging, payments, discovery, and deep ASI:One integration.
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PayPal is known for being at the forefront of digital commerce and now it’s opening the door for millions of merchants and customers around the world to pay (and be paid) their own way — whether in fiat, cryptocurrency, or even the PayPal stablecoin, PYUSD.
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0G is the largest AI Layer 1 ecosystem, powered by the fastest DeAIOS, and is bringing AI fully on-chain. It offers a scalable, secure, and developer-friendly platform for building and deploying decentralized AI applications. 0G’s modular and layered architecture, incorporating sharding mechanisms, ensures infinite horizontal scalability, making it ideal for handling the demands of AI workloads.
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About

Self lets you verify your identity seamlessly and securely. 🙋‍♀️ Prove your name. 🇺🇳 Prove where you’re from. 🛂 Prove your passport number. 🔞 Prove you're above a certain age. 🚫 Prove you’re not on the OFAC sanctions list. Verify that proof that onchain on the Celo network (do this for a stacked bounty!), or offchain, without sharing any private information with third parties.
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About

Fluence is an enterprise-grade cloudless computing platform that frees users from dependence on centralized cloud monopolies. Open, decentralized and powered by top-tier data centers, it ensures high reliability while delivering up to 75% cost savings compared to traditional cloud platforms.
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Ethereum Foundation logo

Ethereum Foundation

$5,000

About

MoPro (short for Mobile Prover) is an open-source framework designed to make zero-knowledge (ZK) proofs easily accessible for mobile developers. By providing high-performance Rust bindings for iOS and Android, developer-friendly CLI tools, and cross-platform libraries, MoPro enables seamless integration of privacy-preserving protocols into native mobile applications. With MoPro, you can build apps that leverage ZK proofs for private authentication, anonymous event membership, and more—all while maintaining an efficient and smooth user experience.
Prize details coming soon