Polygon is the leading platform for Ethereum scaling and infrastructure development. Its growing suite of products offers developers easy access to all major scaling and infrastructure solutions: L2 solutions (ZK Rollups and Optimistic Rollups), sidechains, hybrid solutions, stand-alone and enterprise chains, data availability solutions, and more. Polygon’s scaling solutions have seen widespread adoption with 18000+ applications hosted, 1B+ total transactions processed, ~100M+ unique user addresses, and $5B+ in assets secured.

Website | Twitter | Reddit | Telegram | Discord

ZM builders, we’re challenging you to hack with Polygon solutions to solve real-world problems.

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❌ $5,000 Best Cross-Chain Hacks with Polygon zkEVM

gm anon, or should we say ZM. We’ve officially entered the zkVerse with the launch of Polygon zkEVM Mainnet Beta. We’re challenging you to create a cross-chain or x-chain hack connecting Polygon zkEVM with Ethereum or Polygon PoS. Check out the universal bridge repo, a unified interface for sending messages from Ethereum to other chains and rollups to get started.

Cross-Chain ideas from the Polygon zkEVM team Implement an OpenZeppelin Governor that allows token holders to vote on Polygon zkEVM with proposals that are still on Ethereum or Polygon PoS Create a snapshot strategy that accounts for token balance on Ethereum, Polygon PoS, & Polygon zkEVM Build a zkEVM NFT project with mint logic that depends on owning an asset on Ethereum or Polygon PoS

May be split by multiple teams!

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🆔 $5,000 Best use of Polygon ID's Verifiable Credentials

Self Sovereign Identity is the future. Use Polygon ID to represent identity-based information as verifiable credentials in your dapp so your users can prove access rights to dapp features without giving up their private data.

Ideas from the Polygon ID team Anonymous voting - On-chain voting exposes the choices made by different public addresses. Create a hack that proves DAO membership with a VC while making sure members don’t double vote. Social proof of influence or activity - Create a proof of influence issuer that issues VCs based on numbers of followers or number of posts across social platforms Bot protection - Create a decentralized verification system providing individual VCs of liveliness & uniqueness that could be combined to prevent sybil attacks.

May be split by multiple teams!

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🤝 $5,000 Best Public Good with Account Abstraction or Gasless transactions on Polygon

Create a permissionless public good dapp with an app-like UX by sponsoring your users’ gas fees using gasless transactions or by batching transactions into a single transaction.

Learn more by reading up on ERC-4337: Account Abstraction and Gasless transactions. **Account Abstraction SDKs **Safe{Core} Account Abstraction SDKs support Polygon PoS Mainnet and Polygon PoS Mumbai Testnet. Biconomy’s Gasless Transactions SDKs support Polygon PoS Mumbai Testnet with Mainnet and zkEVM networks coming soon.In your project’s README, explain the UX optimization strategies you chose and link to relevant sections of code with your account abstraction implementation.

May be split by multiple teams!

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🏊‍♂️ $5,000 Build #onPolygon in Public Pool Prize: Deploy your smart contract on Polygon (Polygon PoS Mainnet, Polygon PoS Mumbai Testnet, Polygon zkEVM Mainnet, or the Polygon zkEVM Testnet) and provide a link to the smart contract and your tweet. All teams that satisfy these requirements will split the pool prize.

Pool prize eligibility ✅

• In your project’s README link to your deployed smart contract(s) on Polygonscan
• Link to your tweet: Use this link to Tweet out the link to your deployed smart contract and build in public by sharing your code with the Polygon Devs community.

Polygon's Developer Resources 

• The official documentation for 0xPolygon
• Polygon's Matic Testnet Faucet
• dApp Store Kit documentation
• zkEVM developer docs
• zkEVM hardhat tutorial
• zkEVM fullstack tutorial
• Polygon ID tutorials

Gnosis Chain is an EVM-compatible Layer-1 blockchain for software engineers, targeting top-notch security, resilience, and credible neutrality, backed by a deeply decentralized network secured by over 100K validators.

Gnosis Chain will be awarding the following prizes for use of Gnosis Chain:

Most innovative dApps on Gnosis Chain:

• 🥇 $6,000
• 🥈 $5,000
• 🥉 $2,000

Plus, special prizes for innovative dApps on Gnosis Chain:

• 🤖 Best AI project on Gnosis Chain — $3,000
• 🌉 Best project on Hashi — $2,000
• 🔐 Best project on Safe — $2,000

We appreciate an impressive vision, an effective use case, and give additional points for a viable business model.

🤖 AI

Take advantage of Gnosis Chain’s decentralization and low network fees for your AI project. Demonstrate the power of AI on Gnosis Chain for a chance to win the AI bounty. Distributed labeling, training, model marketplaces, anything is possible. Be creative (don’t just build one more pay-for-GPT app).

🌉 Hashi

Hashi is an EVM Header Oracle Aggregator designed to facilitate a principled approach to cross-chain bridge security. The primary insight is that most bridge-related security incidents could have had a minimal impact if the systems relying on them had built in some redundancy. In other words, requiring messages to be validated by multiple independent mechanisms, rather than just one, is much more secure. Be creative!

• Bridge experts can create an adapter similar to Wormhole, AMB as seen here: https://github.com/gnosis/hashi/tree/main/packages/evm/contracts/adapters
• Learn more about Hashi here: https://github.com/gnosis/hashi
• Contact our team at the booth or Discord!

🔐 Safe

Build with Safe on Gnosis Chain to take advantage of "sponsored transactions". Made possible by Account Abstraction (AA), Gnosis Chain together with Safe sponsors all your users’ Safe transactions on Gnosis Chain. Use the gasless experiences that feel like web2 interactions. Utilize the Safe{Core} Account Abstraction stack on Gnosis Chain for a chance to win this bounty.

• https://safe.global/core
• https://ethglobal.com/events/lisbon/prizes#safe

⛓ Gnosis Chain

• Find support at our booth, or on the ETHGlobal or Gnosis Discords!
• Gnosis Builders Resources includes project ideas, workshops, guides, tools, directories, and recommended things for builders https://github.com/Gnosis-Builders/Resources
• Gnosis Chain Official Documentation https://docs.gnosischain.com/developers

Recommended Things for Builders

• Gnosis Faucet - This faucet is the official xDai faucet for Gnosis Chain.
• RPC Server Address for Gnosis mainnet https://rpc.gnosis.gateway.fm and https://rpc.gnosischain.com
• RPC Server Address for Chiado testnet https://rpc.chiado.gnosis.gateway.fm and https://rpc.chiado.gnosis.gateway.fm
• Gnosis Chain Recommended Bootnodes https://docs.gnosischain.com/about/networks/mainnet/#config-repo
• Gnosis Chain Gas Tracker https://gnosisscan.io/gastracker
• You can auto-config your wallet on Gnosis mainnet via https://chainlist.org/chain/100
• You can auto-config your wallet on Chiado testnet via https://chainlist.org/chain/10200

The 1inch Network unites decentralized protocols whose synergy enables the most lucrative, fastest and protected operations in the DeFi space.

The initial protocol of the 1inch Network is a DEX aggregator solution that searches deals across multiple liquidity sources, offering users better rates than any individual exchange. This protocol incorporates the Pathfinder algorithm which finds the best paths among different markets over 370 liquidity sources on multiple chains. In just over two years the 1inch DEX aggregator has reached 1M users and surpassed $150B in overall trading volume on the Ethereum network alone.

The 1inch Aggregation Protocol facilitates cost-efficient and secure swap transactions across multiple liquidity sources. The 1inch Liquidity Protocol is a next-generation automated market maker that protects users from front-running attacks and offers attractive opportunities to liquidity providers.

The 1inch Limit Order Protocol facilitates the most innovative and flexible limit order swap opportunities in DeFi. The protocol’s features, such as dynamic pricing, conditional orders and extra RFQ support, power various implementations, including stop-loss and trailing stop orders, as well as auctions.

The 1inch Wallet is a multichain mobile platform that provides an easy-to-navigate interface with secure storing, transaction and staking capabilities. This versatile wallet was built from the ground up to streamline interacting with 1inch’s features.

🌀 Utilize the Fusion API

1inch recently launched a new Fusion mode. It allows users to trade with multiple features not available before. Integrate 1inch Fusion into your project to qualify.

• 🥇 $4,000
• 🥈 $3,000
• 🥉 $2,000

🦄 Create a Yield Optimization Protocol for the 1inch Delegation of Unicorn Power

Unicorn Power is a metric in 1inch Fusion that determines the top 10 whitelisted stakers who can become resolvers. It is acquired by staking 1inch tokens in the form of st1inch tokens, with longer lock periods granting more unicorn power. Staking and increasing unicorn power is important because it enables users to participate as resolvers, allowing them to fill orders and potentially earn rewards through the platform.

• 🥇 $3,500
• 🥈 $2.000
• 🥉 $1,000

🌱 Open Track

Open track focused on open source. Any project with meaningful impact to the community.

• 🥇 $2,500
• 🥈 $1,500
• 🥉 $500

Details about 1inch protocols, all documentation, examples and GitHub links can be found at https://docs.1inch.io

Worldcoin is building the world’s largest identity and financial network as a public utility, giving ownership to everyone. Introducing the beta SDK for World ID. World ID is the protocol to bring global proof of personhood to the internet. World ID is privacy-first, decentralized and self-custodial.

• 🥇 Best Overall Project — $5,000
• 🥈 3x Honorable Mentions — $1,000 each
• 🧑‍⚖️ Best Governance App — $3,000
• 🧞 Most Creative Use Case — $3,000
• 🔑 Best Sign in with Worldcoin App — $3,000
• 🏊 Prize Pool for any successful integrations — $3,000

https://docs.worldcoin.org

The Optimism Collective is redistributing power to humanity through a low-cost, lightning-fast Ethereum-equivalent L2 blockchain.

The OP Stack is the standardized, shared, and open-source development stack powering Optimism Mainnet and the Superchain. It maximizes interoperability and composability between different chains using the OP Stack.

Optimism’s RetroPGF is changing the way impactful software is rewarded. The Optimism Collective funds projects that promote the growth of the Optimism ecosystem. You build projects with impact, you get paid.

Website | Twitter

⛏️ Hack the Stack

Hackers, bounty hunters, Ethereum scalers: wield the OP Stack for your craziest idea. Use the latest Bedrock release – live now on testnet – and show us what you can do with your own rollup. You can use the full stack for a Superchain-ready L2, or you can go wild with customizing different layers.

We’re most excited about new mad sciences for unreleased EIPs (production-grade account abstraction, EIP-4844 bundling, etc), cross-rollup infrastructure (unified block explorer, oracle rollups, etc), and hacks that power alternative layers layers (alt-data, alt-derivation).

• 🥇 $4,000
• 🥈 $3,000
• 🥉 $1,000

🗯️ Decentralize Our Identities

Identity primitives are the critical infrastructure powering the next wave of DAOs, dapps, and governance. Develop a decentralized identity solution that leverages the AttestationStation v1 contracts. This could include a global passport NFT, a deep fake protection system, or an algorithm for designating Optimism citizenship.

Pro tip: use the Hackathon Starter Kit and AttestationStation SDK for a fast start.

• 🥇 $4,000
• 🥈 $3,000
• 🥉 $1,000

🏰 Deploy on Optimism Mainnet

Making a dapp, tool, or other on-chain product? Deploy it on Optimism Mainnet, the lightning-fast L2 blockchain built by the Optimism Collective. The top 10 projects (that don’t win another OP prize) who deploy on Optimism Mainnet will get a piece of the pool.

• 🔟 10x $200 winners

🔩Hackathon Starter Kit: Built with ❤️ for Scaling Ethereum hackers. Optimism + wagmi + Foundry + Rainbowkit + Vite project originally bootstrapped with create-wagmi.

Optimism Ideas List: Big ideas, specific ideas, tool ideas, ecosystem ideas, dangerous ideas, updated for AttestationStation and the OP Stack.

OP Stack Resources

• OP Stack Docs
• Getting Started Guides
• OP Stack Customization Guides
• Optimism Monorepo

Identity, Reputation, and AttestationStation Resources

• AttestationStation Overview
• AttestationStation Tutorial (GitHub)
• AttestationStation SDK and CLI
• Goerli Testnet Faucet for Optimism
• Optimism Mainnet Docs and Getting Started Guides

The Uniswap Foundation is the first Foundation of a major protocol to go through the community governance process, its mandate is to support the Uniswap protocol’s decentralized growth, reinvigorate governance, and serve as a Protocol advocate.

Uniswap is the most renowned decentralized exchange (DEX) in the world, built on the Ethereum network. The revolutionary platform has transformed the way digital assets are traded, allowing users to swap tokens without the need for intermediaries or centralized exchanges. Uniswap's innovative approach to liquidity provision, driven by its Automated Market Maker (AMM) system, has disrupted the traditional financial landscape and set the standard for other decentralized finance (DeFi) projects.

The launch of Uniswap V3 brought forth even more groundbreaking features, including concentrated liquidity, customizable fee tiers, and optimized capital efficiency. These improvements keep pushing Uniswap's position as the leading DEX and a cornerstone of the rapidly evolving DeFi ecosystem. With its massive user base, exceptional trading volume, and cutting-edge technology, Uniswap continues to inspire new ideas and drive the future of decentralized finance.

Despite boasting impressive features like concentrated liquidity and adjustable fee tiers, Uniswap V3 has untapped potential for further enhancements. We invite you to join us in driving these advancements and shaping the future of the Uniswap ecosystem

🌍 Ecosystem Prize - $5,000 (Pool Prize)

Project Ideas:

• Decentralized Social: Create unique social token integrations, fostering community engagement and growth.
• Governance Innovators: Develop tools to enhance voting, proposal submission, and communication among UNI token holders, promoting a more democratic and inclusive governance process.
• Liquidity Trailblazers: Craft inventive and efficient liquidity management solutions.
• Gaming Pioneers: Integrate Uniswap into a game (extra points for automatic liquidity pool creation).
• ZK Visionaries: Construct groundbreaking ZK solutions for the Uniswap ecosystem – the interpretation is up to you!
• NFT Maestros: Utilize NFTs to bring new value to Uniswap LPs or swappers in a novel and distinctive manner.

🛠 Developer Tooling Prize - $2,500 (Pool Prize)

Project Ideas:

• Developer Infrastructure: Forge tools that simplify Uniswap integration for developers across various chains.
• LP Analytics Gurus: Develop analytics tools for LPs, aiding them in building positions and devising strategies.

🏆 Open/Innovation Prize - $2,500

To win this prize, build a project that brings fresh ideas and pushes the boundaries of the Uniswap V3 ecosystem. The sky's the limit – let your creativity run wild! Your project must integrate the Uniswap V3 Protocol or SDK.

Requirements:

To be eligible for any of the prizes, your project must integrate the Uniswap V3 Protocol or SDK. We will only accept projects that meet this requirement. Showcase your innovative ideas and groundbreaking solutions while adhering to this integration.

• https://www.uniswapfoundation.org/hacker-home

Lens Protocol is the social layer for web3.

The Lens social graph enables creators to take ownership of their content wherever they go across the dozens of high quality apps across the Ecosystem, with new ones coming online every month.

With Lens, you can easily build social applications or integrate social features into your existing applications. For developers, one of Lens' most powerful features is that it eliminates the need to build, maintain and pay for back-end infrastructure, allowing developers to focus 100% on building the consumer experience.

Teams with as few as 1 developer are able to build polished experiences on Lens using the variety of APIs and SDKs available to builders.

🥇 $3,500
🥈 $2,500
🥉 $1,500
5️⃣ 5x $500 for 5 runner up Lens integrations

Ideas for builders

Below are some ideas of what you can build with the Lens

Social Networking Powered Apps!

☀ AI-based music generation apps and marketplace that splits revenue with creators like Grimes

☀ Mobile apps for sending, receiving and possibly buying cryptocurrency with social features and discovery (think web3 Venmo)

☀ Microblogging - Lens is perfect for a CMS type back-end with the added benefits of discovery, composability and user monetization via collects

☀ Specialized, or niche, marketplaces for digital art or collectibles

☀ Peer-to-peer messaging apps with end-to-end encryption

☀ Voting apps for elections, surveys or just for fun

☀ Digital identity management systems

☀ Social networks for content creators with revenue sharing

☀ Decentralized platforms for crowdfunding or fundraising

☀ Platforms for creating and selling digital subscriptions

☀ Web3-based social gaming platforms

Tools

Because all of the infrastructure, data and Lens APIs are open and permissionless, there are infinite ways to build new and interesting tools on top of the Protocol.

☀ Disqus-like commenting modules

☀ Creating, curating, and / or managing content

☀ Open-source SDK’s, UI Components and Libraries

☀ Leveraging new modules to build slick or improved user interfaces for interacting with existing modules

☀ Migrating web2 footprints to Lens (like InLens)

☀ Content discovery

☀ Delegate profile actions to other wallets/s, smart contracts or DAO

Integrations

In addition to building applications directly on Lens, you may want to integrate Lens as a web3 social layer into other new or existing applications. Each application using Lens benefits the entire ecosystem, turning what is usually a zero-sum game into a collaborative one.

Here are a few examples of integrations:

☀ Sign in with Lens - access users' profile information, such as name, bio, social URLs, pictures, interests, reputation, and activity.

☀ Share to Lens - helps distribute your application and its content to a larger audience.

☀ Follow on Lens - Follow a user on Lens from another app.

☀ Profile - display users' social profiles in any web3 application.

☀ Publication - Embed Lens posts content into any web3 application.

ERC 6551

Token Bound Accounts (TBAs) gives every NFT it's own wallet

An NFT's primary function is to enable uniqueness onchain, which typically can be done with image generation, contract utility, community formation, metadata and traits. However, there are clear limitations that prevent NFTs from reaching it's full potential as a self-sovereign Ethereum identity.

ERC 6551 which is already deployed to mainnet assigns an account address (ERC 4337 to be exact) to every single NFT on the Ethereum ecosystem. This allows NFTs to be used as sign-in identities within all dapps and also allow for NFTs to create their own history onchain separate from the EOA wallet that owns it.

Token Bound Accounts work exactly as a wallet and can hold any types of assets such as ETH, ERC 20, 721, 1155, etc. that means your NFT now can own other NFTs. The play area is extremely wide and fun because it allows for NFTs to truly be unique and become an NPC (networked playable character).

JPEG - view, share, like NFT - buy, sell, trade NFTs with Token Bound Accounts - become, use, interact

☀ The design space here is huge, it would be amazing to see Lens integrations with ERC 6551 in some way.

Monetization

Mirrors, collects, follows and comments allow creators to monetize their content directly to the user without intermediaries and in a permissionless way. Because creators own their content via the Lens Protocol, they can allow their followers to purchase that content.

When a user posts a publication to their Profile NFT, they have the option to set a Collect Module. This allows users to mint NFTs that link to the publication's ContentURI. This module can contain any arbitrary logic to apply to the minting process and the resulting NFT.

Creators can incentivize promotion of their posts by offering fees for each post collected through one of their mirrors.

Here are a few examples of what you can build into your app:

☀ Monetize audiences via paid subscriptions

☀ Incentivize people who share (mirror) content

☀ Split revenue between the creator and others (multiple recipients)

☀ Gated content based on collects or payment

☀ Marketing and ads

More ideas

For more ideas, check out the Inspiration for builders section of our docs.

You can learn more with the following resources

• Lens Docs
• Lens Apps
• Inspiration for builders
• Hackathon Guide
• Lens Integration Widgets

Filecoin Virtual Machine (FVM) is a runtime environment for smart contracts (also called actors) on the Filecoin network. FVM brings user programmability to Filecoin, unleashing the enormous potential of an open data economy.

FVM unlocks boundless possibilities, ranging from dataDAOs, to perpetual storage, to financial services for miners (e.g. collateral lending, liquid staking, insurance protocols), to decentralized compute and Layer 2 networks (such as reputation systems, and incentive-aligned content delivery networks, and more.

Website | Twitter | Discord | Office hours

🏆 Best Project Built On FVM — $6,000

Bonus points for drawing on the uniqueness of Filecoin and its storage capabilities. Find ideas: https://rfs.fvm.dev/

🔟 Top 10 on FVM — $400 each

Projects storing data on Filecoin (directly or via storage helpers) OR projects built on FVM.

All prizes paid USD equivalent in FIL

• FVM Official Site: Official site for FVM, with thorough references to FVM overview, timeline, and developer resources
• FVM Quick Start Guide: FVM walk-through guide for wallet setup and contract deployment with Remix
• FVM Hackathon Cheat Sheet: The name says it all! This is the comprehensive guide with all learning resources about FVM
• FVM Toolkit References: Lists a collection of tools and resources you can use to build on top of the Filecoin network using the FVM
• Metamask and Faucet Guide: A walkthrough tutorial to integrate FIL into MetaMask for different Filecoin networks.
• Using Remix with FEVM: A live walk-through demo for setting up a wallet and using Remix to deploy a smart contract on FEVM
• Example Use Cases: The Request for Startup blog post outlines a number of exciting opportunities and ideas that can be built on FVM

MetaMask is the leading self-custodial wallet. The safe and simple way to access blockchain applications and web3. Trusted by millions of users worldwide.

Linea is a type 2 zero knowledge Ethereum Virtual Machine (zkEVM). A zkEVM replicates the Ethereum environment as a rollup and allows developers to build on it as they would on Ethereum mainnet. Linea allows you to deploy any smart contract, use any tool, and develop as if you're building on Ethereum. For users, this enables the experience and security guarantees of Ethereum, but with lower transaction costs.

🥷 Best Dapp on Linea — 5x $1,000 each

Linea public testnet launched 3/28, and we want to see you build a dapp that will quickly grow our user base. Linea is an EVM equivalent zk-rollup that offers faster finality and low gas fees to help you scale your dapps. Learn more at Linea Build.

Requirements:

• Deployment on Linea
• Link to the deployed contract address on blockscout
• Repos must contain a text file named “lisbon.txt” with the phrase “Keep calm and love Lisbon”

👾 Unity & Metamask — $1,000

Develop a game using the Unity engine that utilizes the MetaMask Unity SDK for secure and seamless integration with the MetaMask wallet. The game should be designed with on-chain interactions.

Requirements:

• Use the MetaMask Unity SDK in your code
• Use the Unity Engine
• Repos must contain a text file named “lisbon.txt” with the phrase “Keep calm and love Lisbon”

🦊 Build on MetaMask SDK — 2x $1,000 each

Valid submissions must include one of the various MetaMask SDKs at minimum, enabling users to connect to MetaMask Extension and/or MetaMask Mobile (Unity, JavaScript, React Native/iOS)

Requirements:

• Use the MetaMask SDK in your code
• Repos must contain a text file named “lisbon.txt” with the phrase “Keep calm and love Lisbon”

🫰 Best Snap Hacks — 2x $1,000 each

Extend the functionality of MetaMask. The most popular wallet is now an extensible platform for permissionless innovation. Bring your features and APIs to MetaMask with Snaps. A Snap is a program run in an isolated environment that customizes and extends the wallet experience.

Requirements:

• Novel - We are looking for new and interesting use cases made possible only via the Snaps platform. Snaps must extend wallet functionality in a meaningful way. Simple use cases where the dapp could have existed without a Snap will not be awarded.
• Repos must contain a text file named “lisbon.txt” with the phrase “Keep calm and love Lisbon”
• Monorepo - Use a monorepo structure (scaffold projects with the guide or the CLI to get started). Feel free to construct a more complex front-end React.
• README - README should detail what the project is, what it aims to accomplish, steps for running locally etc.
• Run It - Submissions must hosted or runnable locally

Build a dapp on Linea

• Linea
• Community Linea
• Linea Support

MetaMask Snaps

• MetaMask Snaps Documentation
• MetaMask Snaps Dev Guide

Unity & MetaMask <3 Builders

• Demo game (template):
• Unity SDK Docs
• Unity SDK video

Build on MetaMask SDK

• MetaMask SDK documentation
• MetaMask SDK Dev Guide

Aave Grants DAO is a community-led grants program, focused on growing a thriving ecosystem of contributors within the Aave Protocol’s community. Through funding ideas, projects and events that benefit the broader Aave ecosystem. The Aave Protocol is one of the most widely used decentralized liquidity protocols that allows users to supply and borrow digital assets. With demand for a stablecoin in the Aave ecosystem, the Aave Companies introduced GHO. GHO is a decentralized, over-collateralized, asset-backed stablecoin that is native to the Aave Protocol and pegged to the U.S. dollar.GHO Lens | TwitterAave Lens | Twitter

We are challenging you to help to build the future of financial applications and grow the DeFi ecosystem with GHO and the Aave Protocol.

The prizes below are available for the best projects on GHO and/or Aave: 🥇 $3,500 USDC 🥈 $2,500 USDC 🥉 $1,500 USDC

5️⃣ Plus the 5 best GHO integrations will receive $500 USDC each

Here are a few ideas to get your creative juices flowing!

GHO

Payments: Build utility around the future of payments on the web. You could create an app or plugin to buy and pay with GHO anywhere.

Direct Debit Network: Create a direct debit network for GHO where any user can charge an account with a predefined amount of GHO. GHO would then be transferred immediately but not unlocked until a set period of time passes. During this time, anyone can dispute the function if they have a balance.

Account Abstraction: Build a tool that uses Account Abstraction with GHO to allow users to pay gas fees with GHO, and has rebates. E.g., if the gas used is more than GHO paid, users can claim a rebate or pay it forward.

DeFi Yield Strategies: Construct new DeFi yield strategies and opportunities for GHO and the entire DeFi community.

Dashboards and Leaderboards: Monitor and analyze GHO’s top borrowers and liquidators, what assets are being used as collateral to back GHO, a GHO multi-chain dashboard.

Transactions: Create new ways to compose or visualize GHO transactions, such as supplying and minting GHO in a single transaction.

Credit Delegation: Allow users with supplied collateral to delegate their borrowing power to other users. Instead of paying to borrow an asset, you could get paid to delegate credit to other users (via ERC712 signature) for sponsored (gasless) mints.

Aave

Health Factor Simulator: Build a UI component that displays a price slider per each collateral and borrowed asset, so you can simulate prices and see how your Health Factor changes under those conditions. Allowing you to take informed decisions to mitigate liquidation risks.

Debt Swap: Right now you can swap your collateral from one asset to another but imagine if you built a new feature for swapping debt from one asset to another.

Governance Visualizations: Create visualizations to help show aspects of the very active Aave Governance, such as, access controls, voter participation, delegation.

DAO Tooling: Build tools to help the Aave DAO community.

Aave Forex Tool: Build a tool where you can short assets. Enhance the ability of users to access forex liquidity by using one or all of eMode, flash loans, and other DeFi integrations such as Curve.

ZK Proofs: Utilize ZK proofs for critical vulnerabilities while not disclosing the vulnerability, i.e. prove there’s a vulnerability to the DAO so they can vote on it informed but not actually say what the vulnerability is.

Sponsored Transactions: Create sponsored (gasless) transactions using functions to supply and repay via permit function, credit delegation, transfer aTokens with permit, or submit votes by a signature.

Make sure your code is well documented on GitHub and preferably has a front end that is available to be used on a public website. If you created smart contracts, deploy them to a testnet and ensure your front end properly interacts with them. Tell us what you are building by tagging @GHOAave @AaveAave on Lens and Twitter!

GHO GHO Documentation Deployed GHO Contracts GHO Contract Source Code GHO JavaScript SDK

Aave Aave Documentation Deployed Aave Protocol Contracts Aave V3 Contract Source Code Aave JavaScript SDK Solidity and JavaScript Address Registry

UMA is an optimistic oracle (OO) that can verify any statement proposed on the blockchain. Using economic incentives, the OO tells smart contracts “things about the world” so contracts and markets asking for that data can be settled. 

Across, UMA's sister project is a cross-chain bridge that supports cheap, secure, and near-instantaneous transfers between L2s and to L1. Across transfers are secured by UMA’s optimistic oracle. 

Builders can use OO as a decentralized truth machine that is flexible enough to handle ambiguity and real-world data with human-powered dispute resolution. UMA’s OO secures and empowers a diverse set of Web3 applications, including cross-chain bridges, insurance protocols, prediction markets and customizable DAO tooling products.

• 🥇 First Winner - $5,000 in UMA tokens
• 🥈 Second winner - $2,000 in UMA tokens
• 🏊 Pool Prize - $3,000 in UMA tokens

• Hacking on UMA: https://www.notion.so/umaproject/Hacking-on-UMA-7f70c694baed4e83b384bd67b422c3aa 
• UMA Docs: https://docs.umaproject.org/ 
• Across Docs: https://docs.across.to/

Cartesi is an application-specific rollup with a Linux runtime. Cartesi’s RISC-V virtual machine allows developers to import decades of open-source wisdom to blockchain applications and build decentralized applications with their favorite libraries, compilers, and other time-tested open-source tooling.

Twitter | Discord

Total bounty prize: $10,000 USD

🥇1st Winner → $7,000 USD

🏅 Shared Pool → $3,000 USD (3 x $1,000)

The challenge: Launch MVP on Testnet/Mainnet

Develop a proof of decentralized concept application using Cartesi Rollups. For inspiration, you might want to use one of these components:

• Decentralized SQLite.
• Decentralized Geoprocessing library.
• Cartesi Rollups asset deposit and withdrawal.
• Decentralized OpenCV (Image Processing library).

Be creative! We encourage you to build novel applications using this stack without any constraints. The easiest way to get started is to start building off of the rollups examples. We want you to explore what can be built using Cartesi and these basic components.

Did you know that Cartesi tech allows you to build DApps without having to master Solidity? Cartesi allows you to build fully decentralized applications using the stacks and libraries you’re already familiar with — expanding the possibilities for all developers, whether you are a beginner or experienced in blockchain coding.

• 🛠️ Docs
• 🦾 GitHub Rollups Examples
• 💡 Ideas to build on Cartesi Rollups
• 💛 Support Kit
• 📝 Blog

Airstack enables you to easily query and integrate any web3 on-chain data and related off-chain data into your apps.

More powerful than previous solutions, Airstack enables complex queries in GraphQL that cut across on-chain, off-chain, cross-chain, cross-project, and identity data, and enables developers to not have to host their own infrastructure to integrate and serve relevant ecosystem data to end-users.

🤖 Airstack AI enables you to query with natural language (e.g. “show me all tokens held by Vitalik.eth, images of his NFTs, and his Lens and Farcaster usernames”) — a great way to get started if you’re new to GraphQL.

🔥 New at ETH Lisbon 2023 🔥 Web3 Identity APIs: Query across ENS, Lens, Farcaster, and NFTs with a single Airstack query/response. Build the future of web3 social interoperability with Airstack.

👩‍💻 Projects building with Airstack include marketing engines, storefronts, decentralized social clients, messaging apps, wallets, and token-gated membership solutions. Check out our ideas list for more inspiration.

• 🥇 Best overall use of Airstack APIs — $3,000
• 🥈 2nd best use of Airstack APIs — $2,500
• 🥉 3rd best use of Airstack APIs — $2,000
• 🎉 4th best use of Airstack APIs — $1,500
• 🎖 5th best use of Airstack APIs — $1,000

Looking for some inspirations? Check out our Ideas List

Developers Telegram | Airstack x ETHGlobal | Developer Docs | Ideas List

Safe The most trusted platform to manage digital assets on Ethereum and multiple EVMs. $40B secured for individuals, DAOs, investors, and more

Safe also makes it easy for anyone to make, use and build smart accounts (aka Account Abstraction)

Safe will be giving $10,000 for the best hacks using Safe{Core}. To be eligible, developers must use at least one of the Safe{Core} Account Abstraction SDK kits listed below.

The $10,000 will be divided among the best hacks in the following:

1. $2,500
2. $2,000
3. $1,500
4. $1,000
5. Runners up $750 each between 4 groups

Please fill out this Safe developer feedback form when you submit your hacks!

1. Safe Developer Docs
2. Hackathon Ideas
3. Safe Hackathon Success Guide

The Ethereum Foundation (EF) is a non-profit organization that supports the Ethereum ecosystem. We are part of a larger community of organizations and individuals that fund protocol development, grow the ecosystem, and advocate for Ethereum.

Website

🏆 Prize - Account Abstraction: Wallets, Paymasters, & Developer Tooling

We encourage building in any of the 3 domains listed below, and recommend using Trampoline for all domains. The top 2 projects submitted (regardless of domain) will each receive $2,500.

Wallets: Demonstrate creative use of ERC-4337 (e.g. an innovative recovery method, access control, privacy, automation).

Paymasters: An interesting implementation of a paymaster contract into an application flow (e.g. Sybil-resistant gas sponsoring, paymasters swapping tokens for ETH) or tools for paymasters to manage their paymaster contract.

Developer Tooling: Simplify the developer experience by enhancing an existing devtool to support ERC-4337 (e.g. Hardhat plugin, ethers.js support) or create a new devtool to support ERC-4337.

🏅 We will award $2,500 USD to the top two projects.

🏆 Prize - Ethereum.org reimagined with web3

Ethereum.org is a community-driven, open-source resource that aims to help users get started in the Ethereum ecosystem and serve as a learning resource for individuals at different skill levels.

Currently, Ethereum.org is a static site built using open-source tools. However, we are looking at ways to expand interactivity and provide a native web3 experience on ethereum.org.

For this hackathon, we are seeking the best integration of web3 on ethereum.org. This can include anything from adding web3 user onboarding to decentralizing the stack, implementing POAPs for completing quizzes, or anything else you can imagine!

We will evaluate submissions based on the idea's clarity and functionality. We will also evaluate projects based on their alignment with our mission and principles.

🏅 We will award $2,500 USD to the top two projects.

Account Abstraction

• Account Abstraction published EIP
• The latest version of the Account Abstraction contracts implementation
• Trampoline
• Building a custom wallet with Trampoline - a step-by-step guide
• Talk: "ELI5: Account Abstraction"
• Workshop: "Account abstraction: building an ERC-4337 wallet"
• Talk: "ERC 4337: Account Abstraction via Alternative Mempool.”
• Inspiration for ERC4337 (Vitalik’s ETHMexico talk)
• UserOp Explorer for 4337

Ethereum.org

• Github
• Website Stack
• Ethereum.org - Mission
• Ethereum.org - Core Principles

zkBob is a zk-based privacy application that works with the BOB stablecoin. We’ve introduced a new Direct Deposit functionality into zkBob, where BOB can be sent directly from a smart contract on Polygon or Optimism into the privacy pool.

🏆 Best use of zkBob Direct Deposits - $6,000 BOB:

• 🥇 1st place - $3,000 BOB
• 🥈 2nd place - $2,000 BOB
• 🥉 3rd place - $1,000 BOB

🛠️ Open track prize pool - $4,000 BOB

Pool prize to be evenly distributed among all hackathon projects that are willing to:

• Get familiar with the zkBob application on Polygon or Optimism
• Create a ZK account and generate a ZK address
• Present generated ZK address within your dApp OR during a live sponsor judging session

--

Direct Deposits bounty detailed description:

Direct deposits allow end users, intermediary protocols and smart contracts to make private transfers directly to the receiver zk address. Any EVM-based workflow containing one or more stablecoin transfers might be easily integrated with zkBob direct deposits on the smart contract level, with very little modification required on the UI side.

We want you to use direct deposits to build out use cases where responsible privacy is preferred 🔥

Ideas for implementations

• Integration within open-source wallets
• Apps for DAO accounting
• Browser extension for zkBob
• Donation/fundraising/tipping apps
• Privacy for P2P micro-transactions
• Integration with DEXs/bridges/aggregators

We are also open to novel use cases which make sense for privacy-preserving transactions

Acceptance Criteria

• Creativity, novelty, usefulness for end users and implementation quality.
• Importance of zkBob integration to the overall application/product (i.e. is it integral to app functionality, usefulness and purpose or is it an add-on without a lot of added value).
• Coherent integrations between zkBob and other existing protocols/dApps are appreciated
• Alignment with the BOB and zkBob ecosystem values of on-chain privacy protection within accepted limits.
• Incorporate some UI functionality so that users can send BOB privately through a browser or mobile based application.
• *extra credit will apply to solutions using other zkBob components on top of integration with direct deposits (zkBob SDK libraries, gift cards, compliance tooling, deep smart contract integrations, etc.)

https://docs.zkbob.com/resources/hackathons/zkbob-direct-deposits

ApeCoin is an ERC-20 governance and utility token for decentralized communities building at the forefront of culture and web3. Yuga Labs, the company behind the Bored Ape Yacht Club ecosystem, is a contributor to the APE ecosystem and is adopting ApeCoin as the primary token for the BAYC ecosystem as well as upcoming metaverse and gaming experiences. APE adoption will be driven largely by communities who are driving culture forward through NFTs, art, gaming, entertainment, community and events. 

ApeCoin serves several purposes including: 

• Governance - allows ApeCoin holders to participate in the ApeCoin DAO 
• Unification of Spend - shared and open currency across more NFT native communities 
• Access - exclusive games, merch, events, and services 
• Incentivization - tool for third-party developers to incorporate APE into their services, games, and other projects

PRIZE OVERVIEW

Best Integration: Best use of ApeCoin in a dApp or application. This includes things like payments and gaming.

• 🥇 First Place - $3,000
• 🥈 Second Place - $2,000

Best Contribution: Relates to tooling or services that can contribute to the ApeCoin ecosystem. Should be relevant for the ApeCoin community, but with broader applications across the ecosystem. This includes things like DAO tooling, NFT applications, and other services.

• 🥇 First Place - $3,000
• 🥈 Second Place - $2,000

• Website
• Testnet ApeCoin
• Discourse
• Twitter
• Contract
• Snapshot
• Snapshot API
• Delegation
• Staking docs 
• Open Source Staking App
• IPFS link to BAYC NFT -- not to be used for commercial purposes

The Graph is an indexing protocol for querying networks like Ethereum, Polygon and IPFS. Anyone can build and publish open APIs, called subgraphs, making data easily accessible.

Best New Subgraph(s): Build and deploy a custom subgraph that indexes data from a smart contract to query blockchain data to your dapp.

🥇 Grand Prize: $1400

🥈 1st Runner-up: $1000

🥉 2nd Runner-up: $600

Best use of Existing Subgraph(s): Query an existing subgraph on the Graph Explorer or hosted service using the public query URL from the subgraph dashboard.

🥇 Grand Prize: $1200

🥈 1st Runner-up: $800

🥉 2nd Runner-up: $500

Pool Prize: Build and deploy or use an existing subgraph that indexes data from a smart contract to query blockchain data to your dapp.

🏅 Pool Prize: $2000

📃Documentation

• Official Docs
• Quick Start

🎞️ Tutorials

• Building Subgraphs for the decentralized Graph Network
• Querying a Subgraph from a Web Application

🎒Hacker Resource Pack

• Hacker Resource Pack

Fuel is the fastest execution layer for the modular blockchain stack. Powerful and sleek, the technology enables parallel transaction execution, empowering developers with the highest flexible throughput and maximum security required to scale. Developers choose the FuelVM for its superior developer experience and the ability to go beyond the limitations of the EVM.

Best Smart Contracts in Sway

• 🥇 1st Prize: $2,500
• 🥈 2nd Prize: $1,000

Use Sway to write and deploy a unique smart contract and get a chance to win the “Best smart contract written with Sway” bounty.

Best Overall dapp built on Fuel

• 🥇 1st Prize: $2,500
• 🥈 2nd Prize: $1,000

We believe top teams perform best when they're building something they believe in and are passionate about. This bounty is open to teams who want to build a fullstack dapp (contract and frontend) using Sway and the TypeScript SDK, leveraging Fuel's unique properties like parallel transaction execution, account abstraction via predicates, shared global memory architecture, and more.

Judging Criteria

• Technical Implementation: Technical implementation and quality of contract deployed on testnet
• Design: Quality of the UI/UX for the frontend (if applicable)
• Creativity: Level of originality - have we seen this project many times before or is it a new approach?
• Quality of Idea: Quality of the idea/use-case/problem statement. A unique project stands a higher chance to win than one that has been implemented before

https://www.notion.so/fuellabs/Documentation-Portal-V1-0-Beta-8817b3357dd246799e58b8f149f3e7bd

Sismo enables on-chain and off-chain apps to fully leverage user’s data with two core products:

1️⃣ Sismo Connect: a single sign-on to verify user sovereign data using ZK Proofs for reputation importation or access control

2️⃣ ZK Badges: a tokenization of user’s data - and can likewise be utilized as an access or reputation tool for apps

Sismo is offering the following prizes:

• 🥇 Best on-chain Sismo Connect App - $3,000
• 🥈 Best usage of Sismo Connect for Account Abstraction - $1,000
• 🥉 Best usage of Sismo Connect for Sybil resistance - $1,000

💜 Builder page

🎭 Join our telegram group for builders

📕 Docs

Scroll is a zero-knowledge rollup built to scale Ethereum. We're committed to Ethereum's ethos, and like to call ourselves the community-first zkEVM.If you’re experienced in building on Ethereum, your code, dependencies, and tooling work with Scroll out of the box. This is possible because our network is compatible with EVM bytecode and designed to feel just like developing on Ethereum. With the launch of the Alpha testnet on Goerli, Scroll is inviting the developer community to join early and begin innovating.

📜 Deploy your smart contract on Scroll - $5,000 total (Pool Prize)

This should just mean changing your RPC!

Try out Scroll's next-generation zk-rollup by deploying your project's smart contracts on the Scroll Alpha testnet on Goerli. With Scroll's zkEVM, users will benefit from lower costs, shorter block times, and higher throughput -- without you needing to modify your Solidity code. Make sure to verify your contracts so we can confirm your deployment!

• Developer Quickstart
• Smart Contract Verification
• Developer Documentation
• Scroll Alpha Testnet Portal
• Scroll Architecture

The Neon Foundation is an organization with the mission to promote the development, growth, and adoption of Neon EVM and its ecosystem

Neon EVM is a solution for anyone looking to scale Ethereum dApps on Solana in a developer-friendly manner and tap into Solana's vibrant ecosystem. We offer participants of ETHLisbon to deploy their Ethereum dApps on Neon EVM and make test transactions.

The expected results: a working smart contract (unit-tests results are crucial), UI (very desirable). Run the performance tests for the deployed dApp.

Best use of Neon FVM

🥇First place - $2500

🥈Second place - $1500

🥉Third place - $1000

If you didn't have time to create your application at ETHLisbon, then you can port over the existing Ethereum dApps to Neon-EVM* (there's no need to create any smart contracts). You can refer to dApps from the following list: https://dappradar.com/rankings/protocol/ethereum and ask the mentors from Neon EVM

Neon Docs: https://docs.neonfoundation.io/

Neon Faucet: https://neonfaucet.org/

NeonScan: https://neonscan.org/

Connect to Neon RPC: https://chainlist.org/chain/245022926

Nouns is a community-owned brand that makes a positive impact by funding ideas and fostering collaboration. From collectors and technologists to non-profits and brands, Nouns is for everyone.

Nounish. In the Nouniverse, there's a popular adjective to describe things with a Nouns vibe. This includes doing good, creating positive externalities, embracing absurdity and difference, teaching people about Nouns and crypto, and having fun. In other words, anything that helps to spread Nouns and crypto adoption.

Nouns Prize. This is the newly-introduced Nouns Prize at ETHGlobal hackathons. It is perfect for collaborating with Nouns for the first time, providing an ideal opportunity to build something nounish over a weekend.

Website | Docs | GitHub | Figma | Assets | Twitter | Groups | This Is Nouns

We invite developers, designers, product folks, and everyone else to team up for an entire weekend of building, creating, experimenting, innovating, and keeping Nouns weird. Hackers are encouraged to submit any project they believe will benefit the Nouns and web3 ecosystem. Make sure always to keep the Nounish vibe!

🏆 $3,000 - Best Public Infrastructure

🎨 $2,000 - Best Nouns Artwork Use

Requirements

• Build a permissionless public good.
• Build something that may be used for free by many people.
• Build something that creates positive externalities.
• Make sure to include Nouns ⌐◨-◨ artwork.

Ideas to build around

• Public infrastructure
• DAO tools
• Art tools
• Web3 education
• Security tools
• Nouns discovery tools

Examples

• Prop House. An experimental approach for communities to deploy capital. Created and funded by Nouns, now used by communities such as OnChainMonkey, Meebits, Humankind, Own The Doge, and more.

• Agora. A delegation marketplace that lets anyone pitch themselves as a delegate by creating a rich media delegate profile. Created and funded by Nouns, now used by ENS, Optimism, and Lil Nouns.

• Private voting research. Three funded teams developing their ideas for Nouns private governance.

You can use the Nouns artwork and any other dev resources freely for any project for any purpose. It's CC0 (public domain, a.k.a. no copyright). Here you can find different resources to get started with Nouns.

Nouns Dev Resources

• GitHub - https://github.com/nounsDAO
• Smart Contract Architecture - https://nouns.center/dev/smart-contract-architecture
• Nouns Protocol - https://nouns.center/dev/nouns-protocol
• Nouns builder API - https://noun-api.com/
• Nouns image API - https://noun.pics/
• More resources - https://nouns.center/dev

Nouns Assets

• All traits, colors, fonts, icons - https://www.noundation.wtf/
• All traits, colors, glasses - https://nouns.center/assets
• Nouns Playground - https://nouns.wtf/playground

Nouns Art Tools

• Edit traits - https://studio.noundry.wtf/
• Edit traits https://jetstream.wtf/
• Add glasses to images - https://nounify.wtf/

Chainlink is the industry standard oracle network for powering trust-minimized applications across Web2 and Web3.

🛠️ $1,000 for the 5 best projects that build something awesome using Chainlink!

Anything that came from the Chainlink Documentation counts, using Price Feeds, VRF, Automation or the newest Chainlink Functions!

• Chainlink Automation enables conditional execution of your smart contracts functions. Define the business rules, the trigger and what will happen.
• Chainlink VRF is the verifiable, tamper-proof random number generator for blockchain gaming and NFT projects. Any smart contract can get random values without compromising security or usability.
• Chainlink Proof of Reserve Feeds provides the status of the reserves for several assets in the same way as Price Feeds.
• Chainlink NFT Floor Pricing Feeds provides a conservative and risk averse floor price estimate for an NFT collection.
• Chainlink Data Feeds are the quickest way to connect your smart contracts to the real-world data such as asset prices, reserve balances, and L2 sequencer health.
• Chainlink Functions can help you to build a dApp that pulls (or pushes) data connecting to an external API, this could be a public or private API, a SaaS app, any IoT device, or an enterprise system. In addition to off-chain data, it could utilize off-chain computations on the data as well (for example, aggregate data and put on-chain or connect to decentralized storage systems such as IPFS).

You must use Chainlink to make a state change on the blockchain to be eligible.

Nice to have: how you use Chainlink in the project description.

It must be possible for the judges to find the Chainlink use in your code. Only the intention to use is not valid.

You must present your project for the Chainlink judges! Projects whose team does not present will not be evaluated.

✅ We will look at the following criteria:

• UI/UX/DX - How useful is your application? Is it visually appealing?
• Blockchain technology application - How valuable this project is for decentralization and adoption of Blockchain and Web3
• Wow Factor - Anything not covered above! This is if you blow us away in some other way.

You can get started with any resources by checking out the hackathon resources page.

You’ll find:

• Smart Contract Starter Tutorial
• Documentation for all the Chainlink features
• Best practices utilized by top protocols like Aave and Synthetis
• Hardhat Starter Kits
• Brownie Starter Kits
• Truffle Starter Kits
• dApp Tools Starter Kit

More useful resources: Chainlink Bounties Video

Chainlink Judging video

Hackathon Resources | Chainlink Documentation

Mantle is a high-performance Ethereum layer-2 network built with modular architecture delivering low fees and high security. Builders can leverage Mantle’s unique design to build dApps with exceptional UX, all while relying on Ethereum’s unrivaled security.

• 🥇 $2,500
• 🥈 $1,500
• 🥉 $1,000

This bounty seeks to reward innovative projects that leverage the Mantle testnet to improve the web3 ecosystem. We will consider any project deployed on Mantle, but here are some ideas:

NFT/Gaming - Build an NFT or web3 gaming-related project that uses novel NFT use cases, improves wallet interactions for games, or addresses one of the challenges outlined in the Game7 report.

Developer Infrastructure or Tooling - Create an SDK, API, or tool to facilitate collaboration among DAOs and web3 teams, such as multisig tooling, transaction tracing, etc.

DeFi - Create an implementation on Mantle that enhances the DeFi ecosystem, such as core protocol tools, ecosystem tools, use cases for NFTs and the Metaverse, DAOs, DeFi, and dApps.

Requirements:

• All submissions must be deployed on Mantle testnet
• A video demo and GitHub repo must be submitted
• Link to your contract on the Mantle Explorer

• Mantle Linktree - https://linktr.ee/mantle.xyz
• Mantle Discord Server - https://discord.com/invite/0xmantle
• Mantle Devs Telegram Channel - https://t.me/mantlenetwork
• Mantle Docs - https://docs.mantle.xyz/introducing-mantle/a-gentle-introduction
• Mantle Developers Website - https://www.mantle.xyz/developers
• Mantle GitHub - https://github.com/mantlenetworkio