⛏️ $10,000 Hack the Stack – Deploy your OP Stack-Powered RollupShow us what you’d do with your own L2. Use the OP Stack’s Bedrock release to deploy a rollup on testnet and do something cool with it. This could be a Superchain-ready chain with minimal under-the-hood changes powering your dapp(s), or you can go wild with customizing different layers. Past examples include an on-chain voxel builder, a Bitcoin-to-EVM rollup, and an entire execution engine placed in a Game Boy emulator.Special consideration will be given to infrastructure and tools. Think RPCs, oracles, deployment, etc. 🥇 - $5,000 🥈 - $3,000 🥉 - $2,000 🗯️ $6,000 Great Attestations – Identity & Reputation BountyBuilding an identity or community-related project? Add attestations into your dapp, tool, or product and deploy on Optimism Mainnet or an OP Stack-powered chain.Use Optimism’s AttestationStation to send, read, and otherwise use attestations as part of your entry. Examples could include event ticketing, webforms, a SybilRank calculator, or a composable allowlist for NFTs.Pro tip: use the Hackathon Starter Kit and AttestationStation SDK for a blazing fast start. 🥇 - 3 teams x $2,000 each 🏰 $4,000 Pool Prize – Deploy on Optimism MainnetMaking 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. 🏊 Up to ten teams will win

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

Most innovative dApps on Gnosis Chain: Total $20,000 🥇 Gold Prize: $8,000 🚀 Silver prize: $5,000 🤝 Bronze prizes: $3,000 🌉 Best project on Hashi (2 winners): $2000 x2

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.

Learn more about Hashi here: https://github.com/gnosis/hashi

📜Deploy your smart contract on Scroll - $10,000 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.

🧾Empower Ethereum's Future with AppliedZK - 2 x $2,500

Thinking about scaling and privacy beyond rollups? Show us your best app building new use cases for the ecosystem, leveraging the power of zero-knowledge proofs. Scroll doesn't expose any ZK primitives (we're just like mainnet's evm), but deploy your project's on-chain elements to Scroll and take home this prize!

😋Cheap & Fast Blockspace Utilizoooor - 2 x $2,500

We want to see dApps taking advantage of cheap gas fees and 3 second block times. What new use cases or user experience benefits can these bring to applications? What can you build in this design space that Ethereum makes more difficult?

🛠 $5,000 for Best Web3 Developer or Community Tool Don’t be a tool, build one! Create and document a useful tool, dashboard, dev library, transaction explorer, DAO coordination tool, or web3 public good that will supercharge development and coordination for the web3 community and beyond. 💡 $5,000 for Best dApp Deployed on Polygon zkEVM Get ready for the Polygon zkEVM Mainnet by deploying your Scaling Ethereum hackathon project to the Polygon zkEVM testnet. Read the Polygon zkEVM docs and check out the hardhat tutorial and zkEVM fullstack development tutorial to get started building. 💻 $5,000 for Best UX on a Project using the Dapp Store Kit The Dapp Store Kit is a community-driven toolkit for deploying successful EVM-compatible dApp stores using a decentralized framework. Build a beautiful, intuitive, user centric dapp store using the Dapp Store Kit. Explain your UX optimizations and choices within your project README. Start building by checking out the Dapp Store docs. 📇 $5,000 for Best Use of Polygon ID Build a fullstack dapp that utilizes Polygon ID to give your users self-sovereign identity and privacy by default so they can verify access rights without giving up personal data when using your dapp. Check out the Polygon ID wiki and builder tutorials to learn how to set up an issuer node and verifier service.

UMA's OO expands what can be built in Web3 and there are many use cases that haven't been thought of yet. We're looking for submissions that build new and innovative on-chain protocols that require off-chain, cross-chain, or aggregated data verified by our oracle.By hacking on Across you will help to strengthen and broaden the bridging ecosystem and increase adoption of L2s. To do this, we need projects that improve scalability, security, and simplicity — and help to provide solid bridging infrastructure that people use without hesitation. 🥇- $5,000 🥈 - $2,000 🏊‍♀️ - $3,000 pool prize

🪄 DataDAOs: Best use and development of data organizations on FVM to incentivize storage of datasets on the Filecoin network. Examples include vertically-focused dataDAOs for decentralized science, machine learning models, biotech etc. We want to highlight DAOs that specifically incentivize the curation, editing, storage and analysis of datasets that are critical to humanity. Prize: 1 x $2,000

🚀 Programmable Storage markets: Best use of FVM to orchestrate, aggregate and broker storage on the Filecoin network. Examples include storage bounties, full sector auctions, Filecoin sector rebates and incentive schemes to drive a more efficient data economy. Prize: 1 x $2,000

🧰 Tooling: Best use of FVM to build tools to support Filecoin economy participants (e.g., storage providers, storage clients etc.) and improve the dapp workflow. Example projects may build trustless reputation systems, retrievability oracles, discoverability mechanisms for stored data locations, storage deal repair and replication workers and more Prize: 1 x $2,000

🔗 Primitives & Infra: Best use of FVM to facilitate intra and inter-protocol transactions. Examples include cross-chain transactions and bridges, access controls and more. Prize: 1 x $2,000

🃏 Wild Card: Awarded to projects with the best overall use of Filecoin's Virtual Machine. Bonus points for projects drawing on the uniqueness of Filecoin and its storage capabilities, let your imagination run free! Find project examples here. Prize: 1 x $2,000

🥇Top prize - $4,000 - Best use of Permissionless Interoperability To qualify to win this prize you simply need to deploy Hyperlane on a new blockchain or Rollup. Once deployed, how you utilize your new-found interoperability capabilities will dictate how likely you are to win the grand prize! Could you be the first one to bring Hyperlane to Scroll? Or Fuel? What about other chains participating in the hack? You could even deploy to your own chain! Examples would include deploying to your own rollup created via Celestia, Optimism, Polygon, or any rollup toolkit you’d like to use! Permissionless Interoperability related submissions will be eligible for smaller prizes, such as the Warp Route or Scaling Infrastructure prizes 💸 $2,000 - Best use of Hyperlane Warp Routes Warp Routes are Hyperlane’s unique take on token bridging. They are unique and instanced expression of bridging as opposed to the traditional omnibus token bridge design. Each Warp Route can have its own security model, using Hyperlane’s Interchain Security Modules. Perhaps most importantly, Warp Routes are completely permissionless! No one can stop you from bringing whichever asset you’d like to any chain you’d like. So how can you win this prize? While the only strict requirement is that you use Warp Routes in your submission, the more creative you get with it the better! Here are some ideas about what you could do Create the first bridge to a new chain! This would also make you eligible for the grand prize 😉 Leverage Warp Route’d assets in an app of your design for a boost to an already strong submission Use Warp Routes to create interchain NFTs or bridge existing collections 🏗 $2,000 - Hyperlane Powered Scaling Infrastructure Use Hyperlane to navigate between networks and create scalability focused infrastructure! While there is no specific form these should take, here are some ideas we’ve thought about: Blockchain Smart Router. Imagine being able to route computation to the cheapest blockchain within the Hyperlane network, and then being able to retrieve or read that state whenever necessary from your home chain. Effectively turning any blockchain into your layer 2 and beyond. This will be incredibly challenging to build, but the rewards will be far greater than you can imagine! For NFTs, you could create an interchain minting contract that acts as a load balancer between chains, i.e collecting orders on several chains (with lower fees or higher throughput) and executing the mint on a different chain.

Best Integration Prizes go to the projects that can show the most innovative use of ApeCoin in a dApp. In general this should include projects that push the entire NFT and metaverse ecosystems forward in an innovative, new way.

• 🥇 First Place - $2,000
• 🥈 Second Place - $1,000
• 🥉 Third Place - $500

Best Contribution Prizes go to the projects that help the ApeCoin community the most. This could be governance tracking, an improved staking UI, or other infrastructure that supports ApeCoin expansion.

• 🥇 First Place - $3,500
• 🥈 Second Place - $2,000
• 🥉 Third Place - $1,000

Fuel Labs is giving away $7,000 USDC in bounties across three categories:

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

• 🥇 1st prize: $1000
• 🥈 2nd prize: $500 USDC

🏗 Build A Fullstack Dapp on Fuel - 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.

• 🥇 1st Prize: $3,000 USDC

⚙️ Best Use of Predicates - Fuel has native account abstraction through predicates. A predicate is just a condition under which you can spend a UTXO. Predicates are scripts where the main function returns a boolean. A pure function where assets under that predicate are unlocked and can be spent by the caller if evaluated to true. A predicate owns or controls UTXOs, and with predicates you can build things like native multi sigs, atomic swaps, and more.

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

Best Dapps

🥇 $1,500

🥈 $1,000

Build a DeFi, NFT, or gaming dapp – or anything you are passionate about. Just build the dapps you love, scale Ethereum, and make it more accessible for people around the world. Special care for User Experience is appreciated!

Infrastructure Improvements

🥇$1,000

🥈$500

Taiko’s ZK-Rollup relies on infrastructure to make it more usable and convenient. For example, block explorers and bridges. Contribute to Taiko’s ecosystem by building out useful infrastructure that can be used by all.

Ideas to consider:

• NFT bridge (learn more about our signal service: https://taiko.xyz/docs/concepts/bridging)
• ZK additions to blockscout explorer
• GUI or set-up wizard to help anyone run a prover

ZK Wizardry

🥇$500

Help us put the ZK in our ZK-EVM by building something out on that side of the project. Whether you’ve already written some circuits, or are just learning, there’s no better time than now.

Ideas to consider:

• Write a data compression circuit; use whatever data compression you’d like and write in whatever language you’d like. (Optimism does a good job explaining calldata compression here; and for us ideally the circuit is written using the Halo2 library)

Protocol Economics (no code)

🥇$500

Help us to design the Taiko Protocol Economics to make it solid, reliable, and robust. No formal rules or constraints, just be creative and think out of the box.

Keep in mind that Taiko is a ZK-Rollup. Both proposers and provers are decentralized. For details on the mechanism of Taiko Protocol – check our workshop!

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

• 🥇 Grand Prize: $2000
• 🥈 Runner Up: $1000

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: $1400
• 🥈 Runner Up: $600

🏆 2 prizes x $2,500 each

Intmax is offering 2 prizes of $2500 each. And since other rollups are offering a prize as well, you have a chance of doubling your prize if you develop dApps on the rollups using Intmax's webmax.js!

🛠 Build on Mantle ($5,000 in bounties paid out in $BIT)

• 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, or making Mantle data available within Google’s BigQuery.
• 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.

Prizes:

• 🥇 1st Prize: $2,500 in $BIT
• 🥈 2nd Prize: $1,500 in $BIT
• 🥉 3rd Prize: $1,000 in $BIT

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: https://explorer.testnet.mantle.xyz/

Judging Criteria: Overall quality of the submission, including innovation, impact on the web3 ecosystem, and technical feasibility.

• 🥇 $1,000 - Grand Prize for the most innovative project using Push Protocol across multichains
• 💬 $750 - Best use case for integrating Push group chat
• 🤝 $750 - Best UX for Push integration (Push Notification and/or Push Chat)
• 🏊 $2,500 - Pool prize for top 10 projects

zkSync Era has arrived at the Fair Onboarding Alpha milestone, meaning the system is fully open source and registered projects can start to deploy on mainnet.

We’re also welcoming you — our passionate developer community — to start building on zkSync Era through one of the Bounty Tracks below.

🔍 Bounty Tracks

Account Abstraction and Security

TD;LR: Innovations in self custodial wallets for a better user experience and user interface (UX/UI), with lower fees, will help onboard the next billion users. In this track, you have the opportunity to use Account Abstraction which is implemented in the protocol level on zkSync Era.

🪄 The Magic: Account Abstraction unlocks innovations in wallet design by bringing web2 UX/UI convenience to web3, so that self custody is much easier and decentralization increases.

🤫 The Secret: Account Abstraction allows organizations to create curated web3 experiences to smoothen onboarding, security and retention. It’s the holy trinity of usability. With AA, we can adapt accounts to business logic needs, instead of adapting business logic needs to accounts.

🔍 The Deets: By treating smart contract accounts at the same level as Externally Owned Accounts (EOA), we can break free from the EOA’s hardcoded assumptions. Accounts are abstracted because now the implementation and the interface are decoupled, allowing for customizable accounts only limited by your imagination.

A great example of Account Abstraction can be found in Raise Finance’s Blog: https://raisefinance.medium.com/the-power-of-account-abstraction-technical-overview-of-the-raisepay-wallet-8e8c43dee64f.

• Optional ideas: improve security using account abstractions via:
• multi-factor authentication via any medium: Gmail, Google Auth, etc.
• Fraud monitoring service, where the service is of the multi-sigs wallet signers: if compliance rules work, sign.
• General abstraction for plug and play services: easily add fraud monitoring, KYC, or any arbitrary service.
• Allow / block lists of dapps to use: create safe and curate experiences with approved dapps.
• Safe transactions training wheels: create safe and curated experience with limits on trading size, margin and assets, or certain types of transactions based on expertise.
• Intra-net accounts: create an intra-net of accounts with different tiers and permissions to increase security. Super charge with easily generated common templates and links between accounts. Abilities include: hierarchy of wallets with different permissions, accounts for internal payments within intra-net, limited account for external payments, etc.
• Custom wallet generators: easy to create inter-linked custom accounts customizable functionality, using on visual GUI tools. Think IFTT meets ETH.Build, meets Your Favorite Wallet.
• Innovations in social recovery: friends, mechanisms for anons to provide service for social recovery, better visual design language for social recovery.
• Emergency Escape Hatches: Easy to recover L2→L1 funds via innovations in emergency escape hatches.
• Innovations on vaults for safe storage: Deadman switches, account vaults for short term assets to trade and long term assets to hold with different permissions. For example: for long term assets, add customizable default locks like 1-week minimum lock to prevent stealing.
• Multi-address model wallets: easily generate and manage a new account address for each new application using account abstraction.
• Any cool and innovative ideas you can dream of. Impress us!
• Optional: improve onboarding using account abstractions and Paymasters via:
• paying the gas fees for users with Paymasters.
• paying bills and fees with ERC20 tokens like USDC.
• session keys: approve all transactions under certain customizable conditions.
• multi-calls: no more signing several transactions, now you can batch transactions for flow.
• Any out-of-the-box ideas you can dream of. Impress the world!
• Improve retention via:
• Using Paymasters to reward on-chain activity like: pay fees or percentage of fees for users that meet a certain threshold.
• Using Account Abstraction to help increase utility of assets

Developer Tooling

TD;LR: Innovations in developer tooling to turbo charge productivity.

• 🪄 The Magic: The more we can automate and simplify, the less we can think about how to do something and more about what to do.
• 🤫 The Secret: DevTools are the unsung heroes of ecosystems.
• 🔍 The Deets: Your work can quickly be leveraged by many and save not just time for yourself, but for your peers.

Developer Tooling Improvements to Consider:

• Creating plugins for existing tools and frameworks not supported yet, like Foundry, Truffle, or Remix. In the README.md, describe how the zkSync-related plugin was created so others can follow along, contribute to, or extend the work.
• Add new features to zksync-cli, along with a tutorial explaining how to add new features. In the README.md, describe how the new feature was added so that others can add new features to the zksync-cli in the future.
• Create new tools that improve the developer experience (e.g., an Account Abstraction smart contract wizard like the OpenZeppelin one). This is open ended: build anything your team finds useful and can think of. In the README.md, describe how the tool was built, so others can follow along, contribute, or extend the work.

Prizes

• 🔐 $3,000 — for Account Abstraction and Security 1st place, $1.5k 2nd place, $1k 3rd place, $500

• 🛠 $2000 — for Developer Tooling 1st place, $1.5k 2nd place, $500

🥇 $1,500 🥈 $1,000

👯 $2,500 pool, for projects that use Polybase for a significant part of their project (i.e. the project wouldn't work without it).

🏆 Best Crosschain Applications - up to $3,000

Most innovative or useful xchain apps built on Connext.

🔗 Take an Existing Protocol Crosschain - up to $1,000

Augmenting an existing protocol with xchain functionality by integrating with Connext. Even if you aren’t the protocol owner, this can be used as an example for other integrators. More complex integrations with good documentation will score bonus points.

📩 Send and Receive Data with xcall - pooled $1,000

Deploy a contract that calls xcall and a contract that implements `IXReceiver to receive the data. A successful cross-chain call makes you eligible to share this pool reward!