{"schema":"BUIDL","d":{"id":8182,"members":[],"pictures":["https://cdn.dorahacks.io/static/files/18f952a6d72cfde054c70724fc39756e.jpg"],"roundProjects":[],"hackathonProjects":[{"id":8884,"hackathon":{"id":215,"tabSet":[{"id":411,"name":"Bounties Details","slug":"bounties-details","description":"# Sponsors\n\n\n\n

\n\n# Polygon [$50,000]\n\n### **$20,000 🦄 The next up, STARTUP prize**\n\nWhat do [**Orb**](https://orb.ac/), [**Superfluid**](https://www.superfluid.finance/), and [**Push Protocol**](https://push.org/) have in common? All 3 of these major web3 projects started at hackathons. Polygon Labs is looking for killer apps and use cases (any type of project: infra / defi / social / privacy/app layer) built with Polygon technology. To qualify for this prize, build something useful with smart contracts on Polygon zkEVM, Polygon PoS or using Polygon ID VCs. Sell us on the use cases or problems your project solves and explain your business plan and the feature roadmap that you’ll continue to build after the hackathon on your path to becoming a startup.\n\n
\n\n### **$10,000 ↔️ Best cross chain dApp utilizing the Polygon zkEVM LxLy bridge**\n\ngm anon, or should we say ZM. At the heart of Polygon’s new 2.0 architecture lies the LxLy bridge. The Polygon zkEVM LxLy Bridge facilitates cross-chain communication across Polygon chains. We’re challenging you to create and extend the LxLy sample implementations and add support for different types of cross-chain messaging and assets transfer of custom ERC-20s and any other EIP/ERC you see fit such as ERC1155 etc. Check out the existing **[code samples](https://github.com/0xPolygonHermez/code-examples)** and open a PR with your own contribution that facilities cross-chain communication.\n\n**Cross-Chain ideas from the Polygon zkEVM team**\n\n- Claim UI: Build a Dapp to allow users to connect and see all valid messages they have that are claimable on a given LxLy chain (Polygon zkEVM etc.) and claim them!\n- Implement an **[OpenZeppelin Governor](https://docs.openzeppelin.com/contracts/4.x/governance#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\n- Build a zkEVM NFT project with mint logic that depends on owning an asset on Ethereum or Polygon PoS.\n- Permissionless Prover: A smart contract that allows Polygon Labs to put up a reward for anyone who fills in as permissionless prover for when our infra goes down essentially a contract that has a function that checks whether a given verifyBatches() call was successfully called by anyone other than our trusted address, and if so, pays out some fixed reward it holds (MATIC tokens)\n- Or even extend these repos to cover LxLy Bridging [https://github.com/ZeframLou/universal-bridge](https://github.com/ZeframLou/universal-bridge) or https://github.com/aave/governance-crosschain-bridges/tree/master/contracts/bridges\n\n
\n\n### **$10,000 👤 Best Use of Polygon ID for a privacy preserving dApp**\n\nSelf-Sovereign Identity is the future. Use Polygon ID to represent identity-based information as **[verifiable credentials](https://0xpolygonid.github.io/tutorials/#core-concepts-of-polygon-id-verifiable-credentials-identity-holder-issuer-and-verifier-triangle-of-trust)** in your dapp so your users can prove access rights to dapp features without giving up their private data. Polygon ID is also excited to announce a brand new partnership with **[Dock.io](http://dock.io/)** that will allow you to securely extend the privacy of your Lens profile using Verifiable Credentials. Using Dock's REST API credentials can be issued a few API calls. Along with issuing credentials application developers can use the API to manage issuer profiles and create and import data schemas. Dock's tooling also supports non-developers through it's no-code solution Dock Certs which provides the same functionality via a web interface.\n\n**[This demo](https://github.com/docknetwork/polygonid-demo)** shows you how to set up your [**Dock.io**](http://dock.io/) account and begin to issue VCs. Your task is to now leverage VCs to provide additional layers of privacy and security to your Lens Dapp.\n\n
\n\n### **Polygon ID resources:**\n\n- [Polygon ID Dev Docs and tutorials](https://0xpolygonid.github.io/tutorials/)\n- How to run an Issuer to issue VCs: [Video](https://www.youtube.com/watch?v=19E-jLLRUO8&feature=youtu.be) by Tony\n- [Fullstack VC-gated dapp template](https://github.com/oceans404/fullstack-polygon-id-vc-gated-dapp/tree/main) with everything you need for your KYCAgeCredential gated dapp by Steph\n- This demo shows you how to set up your [Dock.io](http://dock.io/) account and begin to issue VCs. Your task is to now leverage VCs to provide additional layers of privacy and security to your Lens Dapp.\n\n**Ideas from the Polygon ID team:**\n\n- **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.\n- **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\n- **Bot protection** - Create a decentralized verification system providing individual VCs of liveliness & uniqueness that could be combined to prevent sybil attacks.\n- **VC gated Discord or telegram channels** - Create a way to gate a Discord channel or telegram chat based on a Polygon VC\n\n
\n\n### **$10,000 ⛽️ UX award for best dApp with Account Abstraction**\n\nBuild a dApp (public good, decentralized social media, dao tool, or any other type of project) on Polygon PoS or Polygon zkEVM with an app-like UX by sponsoring your users’ gas fees with a paymaster and / or bundling multiple transactions, for example approve and transfer, into a single transaction.\n\nIn your project’s README, explain the UX optimization strategies you chose and why. Link to relevant sections of code with your account abstraction implementation (paymaster or bundler).\n\nLearn more about AA by reading up on [ERC-4337: Account Abstraction](https://eips.ethereum.org/EIPS/eip-4337) and gasless transactions.\n\n
\n\n### **Account Abstraction SDKs:**\n\n- [Alchemy’s Account Abstraction SDK](https://docs.alchemy.com/reference/account-abstraction-sdk) supports Polygon PoS Mainnet, Polygon PoS Mumbai Testnet, Polygon zkEVM Mainnet, and Polygon zkEVM Testnet\n- [Biconomy’s Gasless Transactions SDKs](https://biconomy.gitbook.io/sdk/introduction/overview) support Polygon PoS Mumbai Testnet and Polygon zkEVM Testnet\n\n[Safe{Core} SDKs](https://docs.safe.global/learn/safe-core/safe-core-account-abstraction-sdk)\n\nsupport Polygon PoS Mumbai Testnet\n\n\n\n# Trust Wallet [$10,000]\n\n- **Visualization ($5,000)**\n\n - Support\n - Add visualization support for both [1inch fusion](https://github.com/trustwallet/wizard-sdk/issues/9) and [rarible](https://github.com/trustwallet/wizard-sdk/issues/8)\n\n - Community\n - create a registry smart contract that route to various [EIP-6865](https://github.com/ethereum/EIPs/pull/6865) implementation of different protocols\n - create a smart contract that is compliant with [EIP-6865](https://github.com/ethereum/EIPs/pull/6865) for 1inch fusion\n\n - Innovation\n - now as you are more familiar with wizard-sdk and the EIP-712 visualization concept, propose the best way to solve this widespread issue (it can be one of the 2 already existing ones, the SDK or on-chain visualization EIP, just make sure to defend your idea)\n\n- **Simulation ($5,000)**\n\n - Support\n - add more debug node providers factories, at least Alchemy and Tenderly\n\n - Security\n - extract slippage AMM calls (uniswap, 1inch,..etc), calculate the min amount and add it to amounts array, note that you can’t rely on the calldata only as someone can use a bundler to bundle multiple transaction (use the simulation internal calls to identify the AMM call, decode it and extract the slippage/minOut)\n\n - Innovation\n - Currently, slippage is a significant issue in decentralized finance (DeFi) because each protocol uses a different data format. It is challenging and not scalable to add custom implementations for each protocol, decode the data, and extract the slippage value.\n\nTo address this problem, a scalable solution is needed that would allow wallets to protect users from miner-extractable value (MEV) attacks targeting transactions with unset slippage (or set to 100%). One potential solution is to create an Ethereum Improvement Proposal (EIP) that standardizes the way slippage is encoded and decoded across all DeFi protocols. This would enable wallets to easily extract the slippage value from any transaction data and alert users if the slippage is unset or set to 100%, providing an additional layer of protection against MEV attacks. Alternative implementations that achieve the same goal are also worth considering.\n\n# Circle [$10,000]\n\n**Total bounty size : 10K**\n\n**Build the Best Use Case for Circle’s Programmable Wallets**\n\n**About Programmable Wallets**\n\nProgrammable Wallets enable developers to create and embed secure Web3 wallets at scale in minutes. With these APIs, you can specify parameters to generate purpose-built wallets tailored to the use case you're building for. To learn about the product and flexible infrastructure models, please visit our documentation [here](https://developers.circle.com/w3s/docs).\n\n**What we are looking for:**\n\nWe are interested in applications that use the Programmable Wallets API to build any of the following:\n\n- Solutions that leverage programmable wallets to address existing gaps in the payments, asset management, identity & ownership, and financial ecosystem.\n- Applications with seamless UX that abstracts away the complexities associated with Web3 interactions, ensuring user-friendly interfaces and experience.\n- Solutions that prioritize user’s security and privacy, and have the potential to scale efficiently, addressing the diverse needs of a growing user base.\n- Solutions that showcase sustainable business and potentially demonstrate how they would function in real-world scenarios.\n\n**Submission Guidelines:**\n\nPlease make sure to include the below within your submission\n\n**1.** **Functional MVP -** The submission is a fully functional Minimum Viable Product (MVP) that covers any of the criteria listed above.\n\nDeliverables:\n\n- Presentation\n- Video demo\n- Testable code\n- Deployed URL or Mobile application\n\nRefrain from submitting only pitch decks, marketing demos, product documents without functional and testable code and demo.\n\n**2.** **Development Process -** The submission includes a clear and comprehensive documentation of the development process, including gists, sketches, discussions, and any issues encountered. Ensure that the commit history demonstrates a steady and iterative development approach, not just one large pull request.\n\n**3.** **Integration Challenges/Feedback:** The submission meticulously details any integration challenges with the provided API and documentation, and the adept use of GitHub Issues to extensively document problems and their resolutions. We look forward to seeing documented feedback around how the solution and the corresponding resources can be improved and what you’d like to see to better improve the building of your use case.\n\n**4.** **Presentation and Documentation:** The submission’s presentation and video clearly details its features and the integration of the programmable wallets API, while its well-structured documentation, including code comments, simplifies understanding and further development.\n\n**Resources:**\n\nHelpful resources as you start to build\n\n- Interactive Quickstart Guide (for developer controlled wallets) - https://learn.circle.com/quickstarts/dev-controlled-wallets\n- Documentation - https://developers.circle.com/w3s/docs\n- Discord Channel - https://discord.gg/XY4nxa72\n\n\n# Rally Protocol [$10,000] (4 winners, $2,500 each)\n\n![youtube](https://www.youtube.com/watch?v=uwN9MKPhNk8)\n\n**About Rally Protocol:**\n\n[Rally Protocol](https://rly.network/) is the go-to mobile web3 development solution for serious builders and crypto-curious app developers alike. As permissionless, free-to-use, open-source software, Rally Protocol has built React Native tooling that allows developers to seamlessly integrate Web 3 into mobile applications. Developers are able to maintain full control of the user experience, and develop in programming languages they already know.\n\n**What We're Looking For:**\n\nWe're interested in innovative applications that utilize our SDK. Here are some ideas:\n\n- Create a mobile application that uses the EOA on the device as a signer in a SAFE, SoulWallet, or other smart contracts.\n- Develop an app that uniquely leverages mobile devices and system functionality traditionally under-explored in crypto (e.g., camera, gyroscope, biometrics, location).\n- Write a GSN client that calls our API in NodeJS, Python, or Ruby.\n\n**Links and documentation:**\n\n- [Rally Protocol Overview](https://docs.rallyprotocol.com/rly-protocol/overview)\n- [Rally Protocol Documentation](https://docs.rallyprotocol.com/)\n- [Rally Mobile SDK Introduction](https://docs.rallyprotocol.com/rally-mobile-sdk/introduction)\n- [Rally Mobile SDK](https://www.npmjs.com/package/@rly-network/mobile-sdk)\n- [Crypto Account Overviews](https://docs.rallyprotocol.com/rally-mobile-sdk/crypto-accounts/overview)\n- [Hosted Transactions](https://docs.rallyprotocol.com/hosted-transaction-infrastructure/overview)\n- [Rally Protocol on GitHub](https://github.com/rally-dfs)\n\n# Phala Network[$10,000] \n\n### 🧐 About\n\n[Phala Network](https://bit.ly/3ZRuOqt) is a decentralized off-chain compute infrastructure. On Phala Network, developers can deploy [secure off-chain programs](https://bit.ly/3Pzlse5) that can interface with the Internet via HTTP request, and build cross-chain applications. Now developers have a solution that makes their Smart Contracts even Smarter 🤓.\n[Website](https://bit.ly/3ZRuOqt) | [X (formerly Twitter)](https://bit.ly/3EVU0Ca) | [GitHub](https://bit.ly/3Pzlse5)\n\n\n### 🎁 Prizes\n\n
\n\n

Type	Bounties
🏆 Most Creative & Inspiring	2 prizes of $2k
🤝 Web3 Social Integrations	3 prizes of $1k
🎱 Qualifying Submissions	5 prizes of $500
Videos Submissions	Up to 5 prizes of (250 PHA + PC Shirt)
Blogpost Submissions	Up to 5 prizes of (250 PHA + Bucket Hat or PC Shirt)
Best Phat Contract Starter Kits	Up to 5 prizes of ($100 + PC Shirt + Bucket Hat)

\n\n
\n\n**🏆 Most Creative & Inspiring - 2**\n\nShowcase your creativity and leverage Phala's off-chain capabilities to supercharge your Polygon smart contracts.\n\n**🤝 Web3 Social Integrations - 3**\n\nEnhance the Web3 Social experience by building integrations with Lens Protocol, Farcaster, Telegram, etc.\n\n**🎱 Qualifying Submissions - 5**\n\nTake your idea to Phala mainnet by deploying your custom off-chain program on Phala Network and easily connect to your Polygon smart contract to create your dream cross-chain application.\n\n### 🎥 Video\n\nCheck out our latest workshop on how easy it is to build a cross-chain dApp with Phala Network and Polygon\nhttps://bit.ly/3tbhGQy\n\n
\n\n### 🧠 Need an Idea, Check These Out\n\n
\n\n- Web3 Social (Lens, Farcaster, etc.)\n - [Lens Phite](https://bit.ly/3Zz4cdv)\n - [SafeShift NSFW Blocker on Lens](https://bit.ly/3tkUOxV)\n- Guild.xyz Integration\n - [Just Roles w/ Guild.xyz Integration](https://bit.ly/3ZA9oh4)\n- Dynamic NFTs\n - [Trading Telegram Bot](https://bit.ly/3tkUUFN)\n - [Poke Lens](https://bit.ly/3PAFy7S)\n- AI integrations\n - [Smart Cookie](https://bit.ly/3PFF5kL)\n- Bonus Integration: SubQuery + Phat Contract Indexer integration\n- Adventurous Integration: Intent Based Architecture\n - [Smol Ask](https://bit.ly/48x7kut)\n\n
\n\n### 📥 Submissions\n\n**Requirements for Project Submissions**\n\n1. Deploy an off-chain program on Phala mainnet (For any issues reach out to [Joshua](https://twitter.com/hashwarlock) or log an issue [here](https://bit.ly/3Pzlse5))\n2. Create a cross-chain dApp by connecting your Polygon Smart Contract to your Phala off-chain program.\n\n**🦮 Guidelines**\n\n**1.** Open source repo of project submission (MIT License, Unlicense, etc.)\n\n**2.** Contract ID on Network of Consumer Contract\n\n**3.** Oracle Attestor Address\n\n**4.** Readme file with documentation of Project details, including screenshots/videos demoing the project\n\n**📖 Requirements for Blog Submissions**\n\n**1.** Must be published to a public blog (i.e. your site, mirror, Hashnode)\n\n**2.** Should be technically focused, either a write of how you built your project or a technical guide on how to use Phala\n\n**3.** Submit link to published article\n\n**🧠 Resources**\n\n- [Phala Phat Contract Starter Kit](https://bit.ly/3Pzlse5)\n- [Awesome Phat Contracts](https://bit.ly/3PXxSOg)\n- [Hackathon Resources](https://bit.ly/3RF2GEA)\n- Wanna Learn How To Get Full Power of Phat Contract via the Rust SDK? Ask Our Core Team in [Discord](https://bit.ly/3PFEr6y)\n\n# Chainlink\n\n**About Chainlink:**\n\nChainlink is the industry-standard Web3 services platform. It has enabled trillions of dollars in transaction volume across DeFi, onchain finance, gaming, NFTs, and other major industries. As the leading decentralized oracle network, Chainlink empowers developers to build feature-rich Web3 applications with seamless access to real-world data, offchain computation, and cross-chain interoperability across any blockchain, providing global enterprises with a universal gateway to all blockchains\n\n**Tracks:**\n\n- **Chainlink CCIP**\n\n - $2,000 for the best project build with CCIP\n\n - $1,000 for 2nd and 3rd best projects built with CCIP\n\n- **Chainlink Functions**\n\n - $2,000 for the best project build with Chainlink Functions\n\n - $1,000 for 2nd and 3rd best projects built with Chainlink Functions\n\n- **Other Chainlink Services**\n\n - $1,500 for the best project that uses VRF, Automation, PoR, Data Feeds, Data Streams or multiple Chainlink Services\n\n - $500 for the 2nd best project that uses VRF, Automation, PoR, Data Feeds, Data Streams or multiple Chainlink Services\n\nExtra: bonus points given for multiple Chainlink services used in a meaningful way within a project\n\nAnything that came from the Chainlink Documentation counts, using Price Feeds, Data Streams, PoR, VRF, Automation, Chainlink Functions or Chainlink CCIP!\n\n - Chainlink Automation enables conditional execution of your smart contracts functions. Define the business rules, the trigger and what will happen.\n\n - 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.\n\n - Chainlink Proof of Reserve Feeds provides the status of the reserves for several assets in the same way as Price Feeds.\n\n - Chainlink NFT Floor Pricing Feeds provides a conservative and risk averse floor price estimate for an NFT collection.\n\n - 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.\n\n - 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).\n\n - The Chainlink Cross-Chain Interoperability Protocol (CCIP) provides a single simple interface through which dApps and web3 entrepreneurs can securely meet all their cross-chain needs, including token transfers and arbitrary messaging.\n\n - Chainlink Data Streams provides low-latency delivery of market data off-chain that you can verify onchain. With Chainlink Data Streams, decentralized applications (dApps) now have on-demand access to high-frequency market data backed by decentralized and transparent infrastructure\n\nYou must use Chainlink to make a state change on the blockchain to be eligible.\n\nNice to have: how you use Chainlink in the project description.\n\nIt must be possible for the judges to find the Chainlink use in your code. Only the intention to use is not valid.\n\nYou must present your project for the Chainlink judges! Projects whose team does not present will not be evaluated.\n\n**✅ We will look at the following criteria:**\n\n- UI/UX/DX - How useful is your application? Is it visually appealing?\n\n- Blockchain technology application - How valuable this project is for decentralization and adoption of Blockchain and Web3\n\n- Wow Factor - Anything not covered above! This is if you blow us away in some other way.\n\n**Resources:**\n\nYou can get started with any resources by checking out the [hackathon resources page.](https://docs.chain.link/docs/hackathon-resources?utm_medium=referral&cnid=7ewfjg425mq6)\n\nYou’ll find:\n\n- The newest Chainlink CCIP [documentation](https://docs.chain.link/ccip)\n\n- Smart Contract Starter Tutorial\n\n- [Documentation](https://docs.chain.link?utm_medium=referral&cnid=7ewfjg425mq6) for all the Chainlink features\n\n- Best practices utilized by top protocols like Aave and Synthetis\n\n- [Hardhat Starter Kits](https://github.com/smartcontractkit/hardhat-starter-kit)\n\n- [Brownie Starter Kits](https://github.com/smartcontractkit/chainlink-mix)\n\n- [Truffle Starter Kits](https://github.com/smartcontractkit/truffle-starter-kit)\n\n- [dApp Tools Starter Kit](https://github.com/smartcontractkit/dapptools-starter-kit)\n\n**More useful resources:**\n\n- [Chainlink Bounties Video](https://www.youtube.com/watch?v=20hyhIG7Si0) \n\n- [Chainlink Judging video](https://www.youtube.com/watch?v=nT07Ayr4dPw) \n\n- [Hackathon Resources | Chainlink Documentation](https://docs.chain.link/resources/hackathon-resources)"},{"id":445,"name":"Submission Guide","slug":"submission","description":"# Getting Started [3-5 MIN]\n\n**1.** **You should submit your BUIDL via [DoraHacks.io](https://dorahacks.io/). Before that, make sure that you already have an account.**\n\nUse the **Sign in/up button** at the upper right corner of the page to access the sign-up options.\n\n

\n\n**Github, crypto wallet** and **email** are supported for creating an account. For BUIDLers, we recommend you to connect the account to your **github** to make more people know what you are building at any time.\n\n*You may be asked to receive a verification code via email. The email may take some time to arrive. No worries! The code will not expire in 10 minutes when you click “send code”.\n\n**2. Before the submission of deadline, please make sure you have added your Github link to the project. You can submit the project first, edit it later before the deadline.**\n\nClick “Submit BUIDL”.\n\n

\n\n> **→ If you already have a BUIDL on DoraHacks**\n\nChoose your BUIDL project from **\"Apply with Existing BUIDL\"** and identify the Bounty you want to join.\n\n> **→ If you want to submit a new BUIDL project**\n\nClick **“Create a new BUIDL”** and fill in the form as required. You'll be directed to \"Apply for Polygon DevX [India] Hackathon X DoraHacks\" page after the new BUIDL setup.\n\nFill in the form to offer the information about your project. Note that for demo, demo link and social media, please offer **URLs (with http/https://)**.\n\n

\n\nDon't forget to check \"I agree to the User Agreement\".\n\n

\n\nBack to Application window. Choose your BUIDL project from **\"Apply with Existing BUIDL\"** and identify the Bounty you want to join.\n\nWhen submission succeeds, you'll see this notification.\n\n

\n\n# Project Verification\n\nWait! Don't just leave your BUIDL here and forget about it. Please contact DoraHacks staff on **Telegram** [@dorahacksofficial](https://t.me/dorahacksofficial) for project verification and promotional support. We'll make every BUIDL a poster and arrange a live project demo session for you via Youtube Live/Binance Live. Don't let go of the chance to receive huge visibility!\n\nOr, you can also reach us out at the **#buidl-verification channel** in the **Discord** https://discord.gg/gKT5DsWwQ5\n\n# Want to make some changes to your BUIDL?\n\nClick [Avatar] -> [Profile] to enter the Account Center, and click the \"Edit\" button on the top right of the BUIDL to update the BUIDL information.\n\n

\n\n

"},{"id":460,"name":"Workshop Schedule","slug":"workshop","description":"# Ep01: Chainlink CCIP\n\n**Time: Nov 4th, 6PM IST**\n\nSpeaker: Frank Kong, Chainlink Labs, Developer Advocate\n\n![youtube](https://www.youtube.com/watch?v=ETgslKvnhLc)\n\n- Binance Live: https://www.binance.com/en/live/video?roomId=2161135\n- Youtube: https://youtube.com/live/ETgslKvnhLc\n\n# Ep02: Upgrade Your Smart Contracts with Phat Contract 2.0: Dynamic NFTs, Web3 Social, Any API, and More\n\n**Time: Nov 6th, 9PM IST**\n\nSpeaker: Joshua Waller, Director of Tech Evangelism, Phala Network\n\n![youtube](https://www.youtube.com/watch?v=axwenZMh1Gg)\n\n- Binance live: https://www.binance.com/en/live/video?roomId=2161141\n- YouTube: https://youtube.com/live/axwenZMh1Gg\n\n# Ep03: Building with Circle's Programmable Wallets\n\n**Time: Nov10th, 6:30PM IST**\n\nSpeaker: Blessing Adesiji, Circle and Senior Developer Relations and Ecosystem Marketing, EMEA\n\n![youtube](https://www.youtube.com/watch?v=iV3d6tsOkaY)\n\n- Binance live: https://www.binance.com/en/live/video?roomId=2161142\n- YouTube: https://youtube.com/live/iV3d6tsOkaY\n\n# Ep04: Deep dive into ERC-2535 Diamonds Multi-Facet Proxy\n\n**Time: 11th November, 7-8 pM IST**\n\nSpeaker: Abderrahmen Hanafi, Senior Smart Contract Engineer, Trust Wallet\n\n![youtube](https://www.youtube.com/watch?v=iUvrtqxkUNg)\n\n- Binance Live: https://www.binance.com/en/live/video?roomId=2162406\n- YouTube: https://youtube.com/live/iUvrtqxkUNg"},{"id":512,"name":"Results","slug":"results","description":"# Polygon DevX [India] Hackathon X DoraHacks Result\n\nHey there, check out the finalists of the Polygon DevX Tour India Hackathon! On top of the prize money, the top winners get to show off their projects at Polygon Connect, a cool networking event with top VCs, builders, and experts in the Web3 space. Let's see who's got lucky!\n\n**[ZkVote](https://dorahacks.io/buidl/8177)**\n\nZkVote aggregates voting power across chains to improve dispersed governance and ensure fairer DAOs.\n\n**[BuildIt](https://dorahacks.io/buidl/8175)**\n\nBuildIt is a metaverse project that lets users own, control and trade land easily.\n\n**[Socio](https://dorahacks.io/buidl/8191)**\n\nSocio seeks to create a world of social media where user privacy is of the utmost priority.\n\n**[zkMystics](https://dorahacks.io/buidl/8185)**\n\nBuilt on Polygon PoS and Polygon zkEVM, zkMystics improves on-chain verification.\n\n**[OTC Swap](https://dorahacks.io/buidl/8170)**\n\nOTC Swap is a peer-to-peer DEX with Futures options using Crypto & Fiat powered by Chainlink Functions on Polygon POS.\n\n# Phala Network Bounty Winners\n\n**Winner**\n\n**[ZkVote](https://dorahacks.io/buidl/8177)**\n\nZkVote aggregates voting power across chains to improve dispersed governance and ensure fairer DAOs.\n\n**Runner up**\n\n**[CircleCut](https://dorahacks.io/buidl/8180)**\n\nCircleCut is an Android Native mobile application built with Circle’s User controlled wallets.\n\n**[DCAer](https://dorahacks.io/buidl/8182)**\n\nA Dapp which Dollor Cost Average Tokens with just one Click and with On-Chain Notifications.\n\n# Circle Bounty Winners\n\n**Winner**\n\n**[CircleCut](https://dorahacks.io/buidl/8180)**\n\nCircleCut is an Android Native mobile application built with Circle’s User controlled wallets.\n\n**Runner up**\n\n**[MapX](https://dorahacks.io/buidl/8168)**\n\nMapX is a innovative geo-tagged NFT platform that encourages exploration and adventure through map-based gameplay. It addresses the challenge of businesses attracting foot traffic by offering real-life utilities such as vouchers, collectibles, and digital art. The platform serves both crypto projects and retail businesses, providing a low-cost and effective marketing solution.\n\n# Chainlink CCIP Bounty Winners\n\n**Winner**\n\n**[Pixel](https://dorahacks.io/buidl/8193)**\n\nEmpowering decentralized gaming through Chainlink's suite of services, This project aims to revolutionize user experiences, drive blockchain adoption, and redefine Web3 interactions within a vibrant, cross-chain gaming ecosystem.\n\n**Runner up**\n\n**[zkMystics](https://dorahacks.io/buidl/8185)**\n\nBuilt on Polygon PoS and Polygon zkEVM, zkMystics improves on-chain verification.\n\n# Chainlink Functions Bounty Winners\n\n**Winner**\n\n**[WeathHedge](https://dorahacks.io/buidl/8172)**\n\nWeathHedge is a Weather derivatives trading platform that empowers users to hedge against weather-related financial risks effectively, reducing exposure to unpredictable elements. The platform owner creates and lists hedging contracts, allowing users to easily purchase them by paying the specified premium. Funds from buyers are securely stored in a vault, reducing risk.\n\n**Runner up**\n\n**[OTC Swap](https://dorahacks.io/buidl/8170)**\n\nOTC Swap is a peer-to-peer DEX with Futures options using Crypto & Fiat powered by Chainlink Functions on Polygon POS.\n\n# Other Chainlink Services Bounty Winners\n\n**Winner**\n\n**[Pixel](https://dorahacks.io/buidl/8193)**\n\nEmpowering decentralized gaming through Chainlink's suite of services, This project aims to revolutionize user experiences, drive blockchain adoption, and redefine Web3 interactions within a vibrant, cross-chain gaming ecosystem.\n\n**[Astor](https://dorahacks.io/buidl/8162)**\n\nAstorFi is a crypto currency index and index based investment DeFi. The main objective of this project is to innovate based on recent advancements in blockchain and build one of the most used traditional finance instrument, Index Funds."}],"skills":["python"],"applied":false,"isCurrentHackerRegistered":false,"buidlsCount":72,"applicationsCount":73,"organization":null,"description":"# \n\n## 🙌 Join [Polygon Developer Community](https://discord.com/invite/0xpolygondevs) to get timely and direct support from Polygon and partners, for all your questions or queries about this hackathon!
\n\n# About\n\nPolygon Labs is excited to invite you to participate in our upcoming DevX Tour India Hackathon, where developers can showcase their skills and create innovative solutions to improve the blockchain ecosystem. Polygon Labs is dedicated to developing Ethereum scaling solutions for Polygon protocols and engaging with other ecosystem developers to help make scalable, affordable, secure, and sustainable blockchain infrastructure for Web3 available.\n\nIn addition to the prize money, Polygon Labs provides a unique opportunity for the top 5 winners to showcase their projects at Polygon Connect, a premier networking event featuring top VCs, builders and experts in the Web3 space. \nPolygon Connect offers winners a chance to connect with Polygon Labs's founders and other industry leaders, learn from technical experts and professionals, and build relationships with like-minded innovators in the Web3 space. This is a one-of-a-kind opportunity to gain exposure and get feedback from top industry players, which could help you take your project to the next level.\n\n# List of Partners\n\n- Sponsors\n - Circle\n - ETH Global\n - Trust Wallet\n - Rally Protocol\n - Phala Network\n\n# Bounties\n\n- Polygon\n- Trust Wallet\n- Circle\n- Rally Protocol\n- Phala Network\n\n# Judges list\n\n- Sandeep Nailwal, Co - Founder Polygon\n- Mihailo Bjelic, Co - Founder Polygon\n- Jordi Baylina, Co - Founder Polygon zkEVM\n- David Schwartz, Co - Founder Polygon zkEVM\n\n# Mentors list\n\n- Tony Olendo, DRE Lead, Polygon\n- Steph Orpilla, Devrel Engineer, Polygon\n- ...\n\n# Judging Criteria\n\n- Technical Implementation: How unique is the technical implementation of the project? How well is it engineered?\n- Innovation: How original, creative, novel, and valuable is the project? Does it bring something new and unique to the ecosystem?\n- Usefulness: How helpful is the project for the intended users? Does it solve a real problem or pain point?\n- User Experience: How easy and intuitive is the project for experts and beginners?\n- Impact on the Polygon Ecosystem: How much does this project improve the ecosystem? \nDoes it drive adoption, provide better tools, or improve the architecture?\n- Potential for Future Growth: How much potential does the project have for future growth and development?\n- Overall Presentation: How well is the project presented, including the demo video and documentation?\n\n# What if you win on Polygon?\n\n**Exclusive Access to the Invite-only Polygon Closed Dev Circle:**\n\nAs a hackathon bounty winner, you will gain exclusive access to the Polygon Closed Dev Circle, an invite-only community of builders on the Polygon ecosystem. This community provides you with a supportive network of like-minded developers, entrepreneurs, and industry experts, fostering collaboration and innovation. Even if you're not able to win any bounties, and have a promising project, we're happy to add you to the army.\n\n**Support from the Marketing, Business Development, and Polygon Ventures Teams:**\n\nWinners will receive support from the Polygon Labs marketing, business development, and Polygon Ventures teams. This includes in-depth discussions about your product idea with the Polyong Labs business development team, who can provide valuable insights and guidance on market trends and potential partnerships. The Polygon Labs product management team can assist with product growth strategies, helping you refine and optimize your product for maximum impact. You will also have access to an extensive investor ecosystem, connecting you with potential funding opportunities to accelerate your project. In addition, Polygon Labs solution engineering support will be available to provide limited assistance with technical aspects of your project.\n\n**Polygon Village Vouchers from Top Polygon Ecosystem Solution Providers:**\n\nAs a winner, you will receive Village Vouchers from top Polygon ecosystem solution providers. These vouchers can be used to claim services and resources from these providers, giving you access to valuable tools, technologies, and expertise to enhance your project's development and growth.\n\n**Opportunity to Participate in Deep Dives with Polygon Ecosystem Projects:**\n\nWinners will have the opportunity to participate in deep dives with other projects within the Polygon ecosystem. This will allow you to learn from other successful projects, exchange ideas, and explore potential collaborations. These deep dives provide valuable insights and networking opportunities, helping you broaden your knowledge and expand your project's potential.\n\nOverall, as a winner of the Polygon hackathon bounties, you will not only receive financial rewards, but also gain access to a supportive community, expert guidance, and valuable resources to accelerate the development and success of your project on the Polygon ecosystem.","onboardingCompleted":false,"registerFormUrl":null,"preRegisterTime":0,"publicContactHackerHandle":null,"hackersCount":225,"title":"Polygon DevX [India] Hackathon X DoraHacks","uname":"devxindia","imageUrl":"https://cdn.dorahacks.io/static/files/18b6772020501df6dd0741a49caaf5ff.jpg","originUrl":null,"startTime":1698777000,"endTime":1700798400,"timezone":"UTC","city":"Virtual","visible":true,"approvalStatus":6,"state":0,"voteUrl":null,"voteMechanism":null,"bonusPrice":100000,"bonusMechanism":"xxx","followersCount":0,"ecosystem":null,"applyGuide":null,"weight":31,"participationForm":"Virtual","field":"","email":null,"contacts":null,"externalContacts":null,"telegram":null,"discord":null,"whatsapp":null,"wechat":null,"prizeFundingEscrowed":0,"token":"USD","prizeSafeForm":0,"prizeSafeNetwork":null,"prizeSafeOwner":null,"prizeSafeWallet":null,"prizeSafePublishDate":null,"hasOnboarding":false,"isPublicTrackJudging":false,"isEndedTrackJudging":false,"question":null,"countryId":null,"cityId":null,"venueName":null,"venueAddress":null,"category":0,"isEnableBounty":true,"isBountyRequired":false,"isEndedBountyJudging":false,"bountiesLimitForBuidl":10,"isPublicBountyJudging":false,"status":2},"status":4,"bounty":null,"track":null,"table":"0","trackObj":{"id":732,"name":"[DEFAULT_TRACK]","judgingCriteria":"","weight":0},"bountyObjs":[{"id":395,"name":"$20,000 🦄 The next up, STARTUP prize","token":"USD","bonus":20000,"link":"https://dorahacks.io/hackathon/devxindia/bounties#1","description":"https://dorahacks.io/hackathon/devxindia/bounties#1"},{"id":402,"name":"Phala Network Bounty","token":"USD","bonus":10000,"link":"https://dorahacks.io/hackathon/devxindia/bounties#6","description":"https://dorahacks.io/hackathon/devxindia/bounties#6"}]},{"id":9102,"hackathon":{"id":220,"tabSet":[{"id":431,"name":"Bonus Pool & Competition Category","slug":"bonus-pool-&-competition-category","description":"The Polkadot treasury provides 60,628 DOT worth $300,000! There are 3 categories and 16 awards in total, 12 of which are for the top three in each category, and the remaining 4 awards are: Most Popular Developer Award, Best Academy Student Award, Best Innovation Award, and Travel Grant Prize Pool.\n\n![en.jpeg](https://cdn.dorahacks.io/static/files/18b6b06fe50859ad33c7bbe4a2a82b2d.jpeg)\n\nThis hackathon is open to individuals and teams and is divided into 3 main categories:\n\n# Category 1: Polkadot ecological developer tools\n\n- Test suite/operation and maintenance tools\n- Substrate Pallets tool\n- Governance tools\n- Unordered list item\n- Other ideas\n\n# Category 2: Dapp products & smart contracts\n- Smart contract chain\n- Smart contract platform\n- ink! Smart contract developer tools (new)\n\nink! is a next-generation smart contract development framework developed by Parity. It relies on Substrate's built-in pallet-contracts module and uses Rust to write WebAssembly smart contracts. As more and more developers use the ink! framework, we need more auxiliary packages to help developers write safe and efficient smart contracts. These kits include but are not limited to:\n\n- Contract testing environment for quick startup and deployment\n- Smart contract audit specifications and tools\n- Improve contract standards\n- Monitoring, indexing, visualization, etc. of data on the contract chain\n\n# Category 3: Building a blockchain based on Polkadot SDK\n\nIn this category, you can build a custom blockchain challenge using Substrate. In the near future, your chain will have the ability to plug into the Kusama Relay Chain for interoperability and plug-and-play security. The following ideas are meant to give you some inspiration. We want you to get creative and build custom chains that you think will be most useful to other builders in the Substrate ecosystem!\n\n- DeFi chain\n- Privacy chain\n- Decentralized storage chain\n- DAO chain\n- Game chain\n- Content, social network chain\n- Decentralized Identity Chain (DID)\n- Decentralized market chain\n- Other ideas"},{"id":433,"name":"Scoring Dimensions","slug":"scoring-dimensions","description":"All entries will be scored along the following six dimensions:\n\n- **Preliminary review 50%: (technical dimension)**\n\n1.Technical difficulty (20%): The problem solved has a certain technical threshold and there is a certain breakthrough at the technical level;\n\n2.Project completion (20%): The project is fully realized, not just the concept, and the Demo/POC display is complete;\n\n3.Standardization (10%): The project is submitted within the specified time and the content is standardized.\n\nThe preliminary review will mainly review the project's code submission, new features, test improvements, inheritance, deployment, etc. during the hackathon. Submitting a project with a clear history will help the reviewers understand the actual development work of the project.\n\n- **Final 50%: (Business Dimension)**\n\n1.Commercial value (20%): Can solve problems and be used in industry scenarios you know;\n\n2.Innovation (20%): novel ideas, breakthroughs, breaking conventional thinking;\n\n3.User experience (10%): including how intuitive and understandable the submitted solution is to potential users.\n\nThe team participating in the demo is determined by the score of the technical preliminary review. After the demo is completed, the review can be adjusted based on the situation of the demo and the actual developed functions."},{"id":434,"name":"Competition Category Details","slug":"competition-category-details","description":"# Category 1: Polkadot ecosystem developer tools\n\nSolo-Chain, Relay-Chain, and Parachain developed based on Substrate all require good testing tools to simulate the environment, start quickly, and develop test cases. You can also develop similar testing tools\n\nReference example:[Zombienet](https://github.com/paritytech/zombienet/)\n\nThe tools required for the development of smart contracts are similar to Ethereum's Hardhat and Foundry.\n\nReference example: [Openbrush](https://openbrush.brushfam.io/)\n\n## Visualization Tools\n\nWe thought of the following perspectives, but if you have another perspective, don’t hesitate to tell us by your actions.\n\n### Block Visualization Tool\n\nBuild a fun, deep, and beautiful way to visualize Polkadot Relay Chain growth, allowing for simple block exploration, finalization, validator data, temporary forks, or other information related to block production on Polkadot.\n\n### Block Explorer\n\nIf you have an awesome way to explore the historical blockchain state, now is your chance to show it to the world.\n\n### Validator Visualization Tool\n\nImpress us with your dynamic display of validator information - such as their identities, addresses, age nodes, or which blocks they generated. You can sort them based on the number of blocks produced or the length of time they have been an active validator group. Use your creativity!\n\n### Nomination Visualization\n\nIn Polkadot, validators are usually nominated by others to join the active validator group. We think of it as a giant graph where some nodes are validators, more nodes are nominators, and the connections between nominators and their chosen validators. Please share your perspective on how we can present the state of the existing nomination ecosystem to users.\n\n### Substrate Pallets Toolset\n\nPut commonly used Pallets together in a Repo, so that other projects can select the required Pallets and integrate them into their own chains.\n\nReference example: [Substrate Open Runtime Module Library](https://github.com/open-web3-stack/open-runtime-module-library)\n\n### Governance Tools\n\nInspiration:\n\n- https://kusama.polkassembly.io/opengov\n\n- https://commonwealth.im/\n\n### Data Analysis Tools\n\nDuring the operation of the blockchain, a large amount of on-chain data will be generated, and data analysis can obtain the information hidden in the data through data mining.\n\nReference example: [Web3Go](https://web3go.xyz/home)\n\n# Category 2: Dapp products & smart contracts\n\n## Smart Contract Chain\n\nSmart contract chains are sandbox execution environments for small pieces of code that can be deployed by other developers without permission. Substrate provides a smart contract module based on EVM and Ink, and Kusama definitely needs to execute this module to deploy an active Parachain. Some concrete ideas could include using smart contracts in other languages, such as assembly scripts, especially those with existing toolchains. In your opinion, what does a perfect smart contract chain look like?\n\nReference example: [Moonbeam Network](https://moonbeam.network/)\n\nSuch as:\n\n- Applications based on EVM contracts\n\n- Applications based on Ink contract\n\n## Smart Contract Platform\n\nThe smart contract platform provides an efficient platform for smart contract specification and execution. The extensibility of Substrate makes it very easy to develop a contract platform. The new contract platform can innovate in terms of execution efficiency, contract security, and cross-chain calling of contracts.\n\nReference example: [Gear Tech](https://www.gear-tech.io/), [t3rn](https://www.t3rn.io/)\n\n# Category 3: Building a blockchain based on Polkadot SDK\n\nIn this category, you can build a custom blockchain challenge using Substrate. In the near future, your chain will have the ability to plug into the Kusama Relay Chain for interoperability and plug-and-play security. The following ideas are meant to give you some inspiration. We want you to get creative and build custom chains that you think will be most useful to other builders in the Substrate ecosystem!\n\n## Game Chain\nA game can be defined as a change of state between two or more parties with attached predefined rules. Our vision of an ideal game chain is not one that can support slow two-player turn-based games (that problem has already been solved), but one that is abstract enough to work on everything from chess and battleships to near real-time with many players. A rogue-like game set in the same world. This type of product would ideally be an abstraction chain on which developers/entrepreneurs can seamlessly launch games into the multiverse, thereby building a tournament platform with sports booking and esports capabilities for gaming to raise funds so that game developers can receive fair distribution. Its functionality can include all or some of the following features:\n\n- Implement multi-token standard (ERC1155).\n\n- Exchange or swap protocol for ERC1155 tokens (e.g. modified to ERC1155).\n\n- Metadata deployment and hosting tools on/off-chain (e.g. IPFS).\n\n- Stablecoin integration (Acala).\n\n- Transaction and integration API for JS/Unity-based games.\n\nTry free tx, free tx under certain restrictions, or free tx based on player reputation. A proof of concept for building a web3 game that doesn't disrupt the feel of a centralized game, but instead sticks to players, items, and information for true ownership of virtual characters. Example:\n\n- NFT Parachain example\n\n- Substrate collectible examples\n\n- Substrate game example\n\nExamples of existing game chains: [Darwinia](https://darwinia.network/), [Celer](https://celer.network/), Game DAO.\n\n## DeFi or Stablecoin Chain\n\nDecentralized finance is a reimagining of traditional financial services, with the core of blockchain being trust-minimizing. One example of DeFi is lending and interest-bearing positions, such as MakerDAO’s collateralized debt positioning system. Another example is a synthetic asset protocol, which allows users to create stablecoin positions or derivatives. For Kusama, DeFi can exist alone in its own Parachain by creating optimized executions, or across Parachains by composing protocols on top of underlying primitives and using XCMP for interoperability.\n\nStablecoins are low-volatility cryptocurrencies that are typically pegged to the value of a reference asset, such as the U.S. dollar. By using algorithmic stablecoin designs, there are now different designs to perform stablecoins such as Schellingcoin or synthetic asset designs. A Kusama stablecoin could be one of a kind or something completely original and new.\n\nOther ideas in this category include a stablecoin savings account (e.g. Dharma), an insurance layer for DeFi (e.g. Opyn), a B2B payments platform (e.g. Veem), a fast payments chain, or a regenerative subscription payment Execution, or a custody-free swap process that can be integrated with any custody scheme, allowing users to trade with each other without giving up custody of a third party.\n\nExamples of existing DeFi chains: [Acala](https://acala.network/), [Centrifuge](https://centrifuge.io/).\n\n## Privacy Chain\n\nBlockchain is inherently transparent, and all transaction history is visible to everyone. Some applications will require stronger privacy protections. On Kusama, privacy can be integrated by using methods such as zkSNARKs, STARKs, and Ring Signatures to hide information on the chain. Privacy can also be created at the protocol or network level by hiding node or validator identities by design. The minimum functionality a project can include here is to enable users to privately trade value within the Kusama or Polkadot ecosystem. Different designs are possible, but the most useful design would be a parachain that allows the use of arbitrary Substrate tokens to process private transactions. Its functionality can include all or some of the following features:\n\n- Confidential Transactions: The ability to transfer tokens between two accounts without disclosing the amount or type of transfer, even though the transaction addresses involved remain visible.\n\n- Anonymous Transactions: The ability to transfer tokens between two accounts without revealing the addresses involved, even if the amount or type of tokens being transferred is public.\n\n- Confidential Account: An account whose balance is unknown, but which also has a viewing key that allows designated users to view the account's balance, but not incoming or outgoing transactions. This is similar to ZCash’s z address.\n\nReference example: [Advanca Network](https://www.ata.network/), [Phala Network](https://phala.network/), [Manta Network](https://manta.network/).\n\n## DAO Chain\n\nA DAO, or Decentralized Autonomous Organization, is a blockchain application that allows community members to collectively reach an agreement on certain decisions within the DAO. Aragon is the most famous DAO framework in the Ethereum world. It allows someone to launch a DAO with a few mouse clicks, add new applications (such as different voting or financing models), and allow members to initiate votes on execution actions, not only within the DAO, but also DAO’s external smart contract (that is, DAO can invest in DeFi and earn membership fee interest). A Kusama DAO chain allows the use of a modular DAO framework with basic modules out of the box, and allows users to easily plug their own custom modules into the DAO. Whether this is better done via smart contracts or a WASM module that requires governance is up to the developer, but the essence of a DAO is the ability to programmatically interact with other DAOs in the same chain - governed Interoperability is a new way of thinking about the state of the digital nation.\n\nExample:\n\n- https://github.com/web3garden/sunshine\n\n- https://github.com/aragon/\n\n- https://daostack.org/\n\n## Content, Social Network, Storage Chain\n\nThe focus of a content or storage chain will be everything from decentralizing GitHub versions and taking ownership of personal data, to hosting unstoppable, uncensored websites. Social networks with built-in privacy, decentralized email platforms, and next-generation torrents, all should be possible by integrating a Substrate chain with protocols like IPFS or Storj. A Kusama storage chain will prove the real need for decentralized storage, not just storage for the sake of storage. Or it could be an abstract chain for fee-based read/write, and others could connect to it as easily as an AWS S3 bucket. This may include integration with IPFS, Storj, etc.\n\nExample:[SubSocial](https://subsocial.network/), Redis-style data storage and commands.\n\n## Decentralized Identity Chain (DId)\n\nIdea: [substrate-developer-hub/hacktoberfest#27](substrate-developer-hub/hacktoberfest#27)\n\nReference example: [KILT Protocol](https://www.kilt.io/), [Dock](https://www.dock.io/), [Litentry](https://www.litentry.com/).\n\n## Decentralized Market Chain\n\nIdea: [substrate-developer-hub/hacktoberfest#27](substrate-developer-hub/hacktoberfest#27)\n\n## Other Ideas\n\n- Public voting chain\n\n- Computational chains (e.g. Golem)\n\n- Permission chain\n\n- Prediction market\n\n- Federation Oracle"},{"id":438,"name":"Registration & Submission Guidelines","slug":"registration-&-submission-guidelines","description":"# Step1: Fill out the Google form\n\n- Participants please submit information through the following link: [https://forms.gle/DX359M661hg17tPN9](https://forms.gle/DX359M661hg17tPN9).\n\n- Whether you are participating as a team or as an individual, you need to fill out this form, and every member of your team must fill out this form.\n\n# Step2: Join our WeChat group or Discord\n\n- For Chinese registrants, please add **WeChat (ID: yikuailianxi)** to join the \"Polkadot Hackathon 2023 Winter Participation Group\". After joining the group, please change your group nickname to \"name-XX project\" or \"name-individual\" (if you have not formed a team yet).\n\n- For English registrants, please[ join our Discord ](https://discord.com/invite/fE8deY4UbP) and select the \"2023 Winter Polkadot Hackathon Hacker\" channel. Please change your username in Discord to \"name-xx project\" or \"name-individual\" (if you have not formed a team yet).\n\n# Step3: Build your project (from the date of registration)\n\n- Fork this code repository to your team members' repositories immediately after signing up. [2023 Winter Polkadot Hackathon](https://github.com/parity-asia/hackathon-2023-winter).\n\n1.Start by creating a directory in Projects named after your project and put an empty file or readme file in it to give a brief introduction to the project. Submit a PR to it. The purpose is to keep a directory for your project. Please note that we will probably rename the directory and add a number in front of the project name. Please pull it down.\n\n2.For existing projects, in other Github Repo. You need to pull out a new branch and submit it after registration. And list the features that already existed before the hackathon and the new features to be completed. The branch name can be 2023-winter-hackathon or the name can be described clearly in the Readme.\n\n3.Encourage projects to be submitted in stages and multiple times to facilitate tutors to review the code.\n\n4.If the project is not open source, you need to contact the technical review separately.\n\n- Afterwards, all portal-related code will be placed in a directory with your project name for this purpose. It can be stored in this form.\n\n![04f0a945-ef60-48f7-bb2c-4db9a5d9308f.jpeg](https://cdn.dorahacks.io/static/files/18b6b21e2af7a0dcf8cdbea4a418d2f0.jpeg)\n\nIf a PR is submitted to this repository before December 22, 2023 11:59 AM UTC+8, the team can only modify files in its directory.\n\n# Step.4: Instructor leads the team·Optional (November 20-December 8)\n\nIf the project requires guidance from a mentor in technology, product, business, etc.\n\npremise:\n\n1.The Github project has relatively complete code and documentation.\n\n2.Prepare issues such as project development and promotion in advance. The questions must be related to the hackathon.\n\n3.Each project will be assigned a technical mentor and VC.\n\n# Step.5: Submit preliminary review materials (before 12:00 AM UTC+8 on December 22)\n\n- The team's code must be submitted to Parity Github. During the first week of registration, teams should clone this code repository and create a team directory. In the README file, list the code features planned to be completed during the hackathon (no more than 1,000 words), and submit a PR (Pull Request) to Parity Github.\n\n- Each team must submit at least one entry, and all teams must submit an English version.\n\n- Entries include but are not limited to:\n\n1.Basic information: project name, project creation date.\n\n2.Project overview: project background/reason/problems to be solved/project introduction/project demonstration/technical architecture/project logo/initial project submission/team information.\n\n3.Code items planned to be completed during the hackathon: blockchain side, Web side, user registration page, etc.\n\n4.Projects completed during the Hackathon (submitted before preliminary review on **December 22, 2023, 11:59 AM UTC+8**).\n\n- Please note: Do not submit demo videos and PowerPoints directly to GitHub. Instead, provide links to them in the readme file, such as a YouTube link or a Google link. Don't submit large files that may affect other teams' download speeds.\n\n- List the final features of the project during the hackathon before the deadline of **11:59 AM UTC+8 on December 22, 2023**, in this section. Place relevant code in the \"src\" directory and list completed development work/features in this section. We will focus on the technical evaluation of these directories/files.\n\n- If you want to see some references, you can follow this link: [https://github.com/parity-asia/hackathon-2023-summer/blob/main/projects/00-proj-template/README.md](https://github.com/parity-asia/hackathon-2023-summer/blob/main/projects/00-proj-template/README.md).\n\n- Entries must be submitted within the specified time (**before 11:59 AM UTC+8 on December 22, 2023**). Overtime submissions will be invalid.\n\n- On the evening of **December 25th**, this repo will give out the preliminary list and select teams to participate in the Demo Day.\n\nWarm reminder: By participating in the hackathon, you agree that the organizer will collect and maintain participants' personal information for the purpose of operating and promoting the hackathon.\n\n# Step.6 Initial review demonstration·Optional (December 23-24)\n\nAfter the team submits the code, the team can apply for a 10-minute online demo to describe the project and answer the instructor's technical questions during the preliminary technical review.\n\n- If the team feels that the documentation is clear, the code is easy to understand, and the tests are complete, they do not need to participate.\n\n- The preliminary review demonstration will also affect the preliminary review results, which may increase/decrease the chances of qualifying.\n\n# Step.7: Submit Demo Day materials (after December 25)\n\n- Confirm the track\n\n- Confirm Bounty\n\n- Demo video\n\n- Project PowerPoints\n\n# Competition Submission Rules and Standards\n\n- Explain the list of contents to be submitted for the preliminary review and the list of contents that must be submitted for the Demo Day.\n\n1.For the initial review, you need to submit the code to GitHub https://github.com/parity-asia/hackathon-2023-summer. The submitted content includes source code, design documents, and project introduction.\n\n2.Do not upload the Demo video to Github. You can add the link address to Readme.\n\n3.Do not upload project-related PowerPoints that are too large. You can add the link address to the Readme.\n\n- Submission deadline: **12:00 AM on December 22 UTC+8**\n\n- Parity has provided excellent submission cases on GitHub in the past: https:[//github.com/parity-asia/hackathon-2022-winter/tree/main/teams/01-RedStone_Network](//github.com/parity-asia/hackathon-2022-winter/tree/main/teams/01-RedStone_Network)\n\n- Github submission includes competition questions\n\n1.Teams can choose competition topics but can choose multiple topics. There is no strict distinction in Github.\n\n2.Projects can choose to compete on multiple tracks. The preliminary review will determine whether they can participate in a single track based on the functions implemented by the project.\n\n- Demo upload problem: The demo video is uploaded to YouTube, the PowePoints link is uploaded to Google Drive, and the YouTube link and Google Drive link are submitted to GitHub."},{"id":439,"name":"Bounty & Bounty Bonus","slug":"bounty-&-bounty-bonus","description":"# Acala\n\n[Acala](https://acala.network/) is building the liquidity layer for web3 finance that is captive and sustainable. It aims to provide infrastructures for HyFi (DeFi+CeFi) solutions with crypto and real-world assets. Acala offers a Universal Asset Hub that hosts multichain liquid staking token (LST) protocols (such as liquid DOT - LDOT), an AMM decentralized exchange, and an app platform that is EVM-compatible and highly customizable (based on Substrate). Acala is secured by Polkadot, and is the liquidity gateway of Polkadot parachains and L1/L2 blockchains.\n\n## Bounty Rewards：$ACA worth $5000\n\n- First place: Up to $2,500 of $ACA\n\n- Second place: Up to $1,500 of $ACA\n\n- Third place: Up to $1,000 of $ACA\n\n- Participation award: Acala Swag\n\n## Build a DApp with Acala EVM+ using at least one of the following features\n\n1.Asset Router: https://evmdocs.acala.network/applications/asset-router\n\n2.LST integrated protocol\n\n- Homa docs: [https://github.com/AcalaNetwork/predeploy-contracts/blob/master/contracts/docs/homa/IHoma.md](https://github.com/AcalaNetwork/predeploy-contracts/blob/master/contracts/docs/homa/IHoma.md)\n\n- Taiga docs: [https://github.com/AcalaNetwork/predeploy-contracts/blob/master/contracts/docs/stable-asset/IStableAsset.md](https://github.com/AcalaNetwork/predeploy-contracts/blob/master/contracts/docs/stable-asset/IStableAsset.md)\n\n3.Polkadot wallet integration\n\n- https://evmdocs.acala.network/special-features/using-bodhi.js-to-deploy-smart-contract-and-interact-with-it\n\nExamples:\n\n- Lossless lottery using LST rewards\n\n- Lending market with LST assets for double yield\n\n- A dApp that allow user to one transaction to send DOT from Polkadot to Acala and swap to other assets and XCM to another parachain\n\n- Setup account recovery for Metamask wallet using delayed proxy & multisig\n\n## References\n\n1.Docs:\n\n- https://evmdocs.acala.network\n\n- https://wiki.acala.network\n\n2.Examples:https://github.com/AcalaNetwork/bodhi.js/tree/master/examples\n\n3.Relevant Repo:\n\n- https://github.com/AcalaNetwork/bodhi.js/tree/master\n\n- https://github.com/AcalaNetwork/asset-router\n\n# Bifrost & Moonbeam\n\n[Bifrost](https://bifrost.finance/) is a modular programmable dedicated liquid staking middle layer serving the omnichain ecosystem. Built on Substrate, powered by Polkadot. Bifrost has created a cross-chain interaction Pallet for vToken based on XCM called the SLPx. The SLPx is an extension pallet to Bifrost SLP that will allow users to invoke SLP's functionality on a remote chain without crossing assets into the Bifrost chain, allowing users to mint, redeem, swap vTokens remotely on the target chain. For users, the minting, redemption, and swapping of vTokens have been simplified, as they can now be directly performed on EVM chains such as Ethereum and parachains such as Moonbeam, Moonriver and Astar without cumbersome cross-chain operations all through one single interface, the recently launched Omni LS DApp powered by SLPx. More information on SLPx technical integration\n\n[Moonbeam](https://moonbeam.network/) serves as the EVM smart contract hub on Polkadot providing flexible and powerful smart contract solutions to the Polkadot ecosystem with XCM capabilities.\n\n## Bounty Rewards：$ 1,000\n\n\n## Bounty Ideation\n\nCombining the features of Moonbeam and Bifrost, participants can develop LST (vToken) related applications based on Moonbeams’ EVM-compatible environment. For reference, specific bounty entries can be made from the following perspectives:\n\n1.DeFi applications built around Bifrost LST vTokens, including but not limited to lending/borrowing, trading, leverage yield strategies, etc. We aim to build innovative vToken DeFi applications to achieve open, transparent decentralised financial solutions across Polkadot EVM and Substrate ecosystems.\n\n2.Provide a vToken App, dashboard or analytics in the Moonbeam ecosystem with customizable UI to guide users to using vTokens and interacting with other native DeFi protocols in the Moonbeam ecosystem.\n\n## Bounty Challenges - Description\n\nKey points: LST、Omni-chain, Moonbeam EVM、Bifrost SLPx, Omni LS, Polkadot XCM\n\n- Create a dedicated vToken Dashboard on Omni LS DApp (powered by SLPx).\n\nAn interactive tool that compares existing yield and LP opportunities for Bifrost vTokens across native Moonbeam protocols and Substrate chains. This tool can show current yields vs. other providers, historical yield, and other metrics which are worth considering.\n\n- Build a vToken yield trading protocol \n\nBuild a permissionless yield-trading protocol where users can execute various yield management strategies for their vTokens- splitting yield bearing assets into a fixed yield (i.e. earn fixed yield on vDOT) and long yield (i.e. bet on vDOT yield going up by purchasing more yield) component. Examples of existing protocols in this space are Pendle Finance, Spectra, Flashstake.\n\n- Create an automated yield strategy aggregator for vTokens\nImplement automated liquid staking yield strategies in yield farming protocols on native Moonbeam DeFi protocols (Beamswap, Stellaswap, Moonwell, Prime Protocol).\n\nAn interactive tool that compares existing yield and LP opportunities for Bifrost vTokens across native Moonbeam protocols and Substrate chains. This tool can show current yields vs. other providers, historical yield, and other metrics which are worth considering.\n\n## References\n\nBifrost is a modular programmable dedicated liquid staking middle layer serving the omnichain ecosystem. Built on Substrate, powered by Polkadot. \n\nBifrost and its features have been audited by various high quality third party blockchain smart contract security auditors (Slowmist, Certik, Common Prefix, Beosin). \n\n- Mint vDOT: https://bifrost.app/vstaking/vDOT\n\n- Website: https://bifrost.finance/\n\n- Full documentation: https://docs.bifrost.finance/\n\n1.SLP: https://docs.bifrost.finance/quick-start/liquid-staking-slp\n\n2.vDOT: https://docs.bifrost.finance/builders/liquid-staking-slp/vdot\n\n3.SLPx: https://docs.bifrost.finance/builders/liquid-staking-x-slpx\n\n- GitHub repo: https://github.com/bifrost-finance\n\n- Press Kit: https://docs.bifrost.finance/resources/press-kit\n\nMoonbeam is an Ethereum-compatible smart contract platform on Polkadot that allows developers to deploy existing Solidity smart contracts and DApp frontends with minimal changes, making it the ideal platform for building multi-chain applications.\n\n- Moonbeam precompiled contracts are native Substrate code that can be called using the Ethereum API. They are used to interact with local assets, send cross-chain messages, and make cross-chain token transfers. Read more about precompiled contracts here.\n\n- Xc20s are local representations of assets that were originally created on other parachains: what is xc20s and crosschain asset on Moonbeam.\n\n- Polkadot XCM, or Cross-Consensus Message Format, is a messaging format and language used to communicate between consensus systems. While XCM has a relatively standardised format, each parachain implements it differently. Learn how to send XCM messages on Moonbeam and Parachains.\n\n- Moonbeam testnet: Moonbase Alpha.\n\n- Since both Moonbeam and Bifrost are built on Polkadot Substrate, understanding it can make your development process easier.Learn more about Polkadot substrate.\n\n# Cumulus Encrypted Storage System (CESS)\n\n[Cumulus Encrypted Storage System (CESS)](https://cess.cloud/) is a blockchain powered decentralized storage and content delivery network infrastructure. Users and creators alike use the platform for on-chain data sharing, whilst builders can develop and deploy DApps.\nOffering the most optimal Web3 solution for storing and retrieving high-frequency dynamic data, CESS reshapes the value distribution and circulation of data assets whilst ensuring data sovereignty and complete user privacy. \n\nOur vision is to create a secure, transparent and high-throughput decentralized value network.\n\n## Bounty Rewards：CESS worth $2,000\n\n- First prize: 1500 $CESS\n\n- Second prize: 500$CESS\n\n## Build an innovative application based on Cumulus Encrypted Storage System (CESS) or its Decentralized Object Storage Service(DeOSS).\n\nHow to promote Web3 mass adoption and attract more users in line with industry development? \n\nFirstly, we must build a mature infrastructure suitable for Web3.\n\nCESS pioneered DeOSS (Decentralized Object Storage Service), providing developers with the storage infrastructure to create ground-breaking enterprise-level DApps. CESS integrates smart contract modules based on EVM and ink! which supports various DApps and provides comprehensive development tools and tutorial guides for developers entering the ecosystem. Alongside its massive storage, CESS offers extensive commercial support within its decentralized storage service. \n\nYou and your development team can unleash innovation and imagination by quickly deploying ink! and EVM smart contracts to the CESS network. Let's BUIDL with CESS!\n\n## References\n\n- https://github.com/CESSProject/cess/wiki/Deploying-Contracts-to-CESS\n\n- https://docs.cess.cloud/deoss\n\n# Gear Foundation\n\nThe [Gear Protocol](https://gear.foundation/) is a next-generation WebAssembly smart contract platform based on Substrate that enables anyone to deploy a DApp in minutes. Gear Protocol has completely new features with the innovative implementation of the Actor model, persistent memory, and WebAssembly execution environment in Substrate. This unique combination enables Gear to provide asynchronous contract execution, persistent memory immutable programs, and a concise, robust user-friendly API interface; while ensuring high performance and low cost, it improves security, scalability, and user experience... Gear Protocol assists in technology transformation towards large-scale use of Web3 technologies by adopting innovative DApps, microservices, middleware, and open APIs.\n\nVara Network powered by Gear Protocol is a fast, scalable Layer 1 decentralized network. With its non-fork, scalable architecture, Vara Network provides the ideal environment for next-generation gaming experiences, financial applications, and a variety of innovative features. However, its capabilities extend far beyond these areas. Vara Network aims to be a universal platform that supports multiple uses, allowing developers and users alike to explore the endless possibilities of Web3 technology.\n\n## Bounty Rewards: $ 3,000，$ 1,000/ Project (3 projects in total)\n\n## Build innovative DApps on Vara Network\n\nTeams that build the following ecological applications on Vara Network powered by Gear Protocol will have the opportunity to receive rewards:\n\n1.Ecological support - Provide data analysis, tools, and some help to Vara Network to improve developer experience, etc.\n\n2.NFT - some tools and experimental usage scenarios in the NFT field, etc.\n\n3.DeFi - financial application scenarios developed using Gear Protocol technology.\n\n4.Games - full-chain games developed using WASM virtual machine.\n\n5.Innovation - all kinds of weird new ideas, etc., such as DAO & tools.\n\n6.ZK - building the most advanced scaling and privacy contracts.\n\n## References\n\n- Gear GitHub：https://github.com/gear-foundation\n\n- Gear Wiki：https://wiki.gear-tech.io/ \n\n- Gear Academy Courses：https://academy.gear.foundation/ \n\n- GitHub IDEA：https://idea.gear-tech.io/ \n\n- Gear smart contract standard library：https://docs.gear.rs/gstd/\n\n# MoonBeam\n\n[Moonbeam](https://moonbeam.network/) is an EVM-compatible smart contract platform on Polkadot that enables developers to build cross-chain dApps. It offers a Web3-compatible API, enabling developers to deploy Solidity smart contracts and application interfaces with minimal modifications. Moonbeam also incorporates features like on-chain governance, staking, and cross-chain integration capabilities.\n\n## Bounty Rewards：$1,000\n\n## Game on! Relevant Challenge Track: DApp\n\nWhether your game is big or small, We're looking for them all. From RPGs to platformers galore, We want games that make us want more.\n\nMoonbeam has a variety of precompiles accessible via easy Solidity interfaces that expose powerful functionality that isn’t typically available in an Ethereum-based EVM. These precompiles enable awesome UX improvements, such as gasless transactions, batched transactions, Randomeness and much more. Leverage on one or more of these precompiles and build a game on Moonbeam to win this bounty.\n\n# Tanssi\n\n[Tanssi](https://www.tanssi.network/) is an appchain infrastructure protocol that makes launching an appchain as easy as deploying a smart contract.\n\nIt does this by providing all the infrastructural components that are necessary to run a chain out of the box - a shared and decentralized sequencer set, shared security, data retrievability, and integrations with tools such as bridges, wallets, block explorers, RPC endpoints, indexers, oracles and more.\n\n## Bounty Rewards：$1,500\n\n- 1st place: $1,000\n\n- 2nd place: $500\n\n## Appchain Adventure: Deploying on Tanssi's Dancebox\n\nJoin the \"Appchain Adventure\" and bring your dApp to life on Tanssi's Dancebox. We invite developers to register an appchain, navigate the dashboard, and showcase their deployment process. Selected teams will receive a slot on Dancebox to bring their project into reality. Your mission is to create a scalable, efficient appchain and deploy it, demonstrating technical prowess, user-centric design, and market potential.\n\n- Deploy a Proof-of-Concept (PoC) of your appchain-powered solution.\n\n- Submit all the relevant code to Github.\n\n- Participate in a workshop with Tanssi’s DevRel crew to fine-tune your approach before submission.\n\n- Deploy your solution on Dancebox for judging."},{"id":440,"name":"Online Activities","slug":"online-activities","description":"# Kick-off Event\n\n- **2023/11/03 Fri. 20:00 UTC+8**\n\n- Youtube：[https://youtu.be/R_7MyotS9fQ](https://youtu.be/R_7MyotS9fQ)\n\n![1.jpeg](https://cdn.dorahacks.io/static/files/18b8f0e654ddfea742e5eeb4f35a9c9e.jpeg)\n\n# Workshop&Office hour No.1\n\n- **2023/11/11 Sat. 20:00 UTC+8**\n\n- [Explore the potential of AA (Account Abstraction) in Polkadot](https://youtu.be/AxxwqABvGRQ)\n\n- [Unlocking the future of Polkadot and XCM (cross-chain messaging)](https://youtu.be/WcW9cHwFtOg)\n\n- [What other projects can be done in the blockchain field? Is zero-knowledge machine learning the answer?](https://youtu.be/0L8ShjeBmJ0)\n\n![workshop1.jpeg](https://cdn.dorahacks.io/static/files/18baa0a62f5d703fdaaf85d4973b096b.jpeg)\n\n# Workshop&Office hour No.2\n\n- **2023/11/12 Sun. 20:00 UTC+8**\n\n- [Building DApps on Acala EVM+](https://youtu.be/XBz_I4dfaZg?si=wrwbsy45NJToDmQX)\n\n- [Omni-chain Liquid Staking Developer Stack - Bifrost SLPx](https://youtu.be/YggDNGT6HUc)\n\n- [The precompile contract bootcamp for Moonbeam](https://youtu.be/5ndxk0LI2zM)\n\n![2.jpeg](https://cdn.dorahacks.io/static/files/18baa03880437f9694f22d546999b6a2.jpeg)\n\n# Workshop&Office hour No.3\n\n- **2023/11/18 Sat. 20:00 UTC+8**\n\n- [How to start building DApps on Vara](https://youtu.be/ElYwYSIre2E?si=0I_WK8WcpeT8gkJ_)\n\n- [DeOSS Gateway API](https://youtu.be/f0Z_OnY0vBo?si=4o1SqlE6BNt0t9kk)\n\n![img_v3_0055_c2adc30e-614e-45f3-a0c6-b142e97d034h (1).jpg](https://cdn.dorahacks.io/static/files/18bf0ba48b742ab7678708f4839ae2b5.jpg)\n\n# Workshop&Office hour No.4\n\n- **2023/11/19 Sun. 20:00 UTC+8**\n\n- [Moonbeam: Building the Future of Cross-Chain DApps](https://youtu.be/pRH5EKisXmY?si=GwhaakJ-Ml77Tsx7)\n\n- [Cloud services empower Web3 developers\n](https://youtu.be/omvrWWfRe_o?si=1HyanOk_98tkP4_w)\n\n- [Tanssi - Appchain Made Easy](https://youtu.be/XNl2mPHY48Q?si=m2WIMLyR8T6aHf5A)\n\n![img_v3_0055_dca404aa-761c-446f-8213-c492089225ch.jpg](https://cdn.dorahacks.io/static/files/18bf0bdc53be42951f5d53f41bb949e9.jpg)\n\n# Workshop&Office hour No.5\n\n- **2023/11/26 Sun. 20:00 UTC+8**\n\n- **Youtube**：[https://www.youtube.com/live/yUZHSvK3lh4?si=47toDDj743O3aXk0](https://www.youtube.com/live/yUZHSvK3lh4?si=47toDDj743O3aXk0)\n\n![#5英文.jpeg](https://cdn.dorahacks.io/static/files/18c14e01139d72fc95cdde847d59b8f9.jpeg)\n\n# Workshop&Office hour No.6\n\n- **2023/12/02 Sat. 20:00 UTC+8**\n\n- **Youtube**：[https://www.youtube.com/live/rs0eP68bhl0?si=jx1Q0WlfDi6mqvbP](https://www.youtube.com/live/rs0eP68bhl0?si=jx1Q0WlfDi6mqvbP)\n\n![WechatIMG32.jpg](https://cdn.dorahacks.io/static/files/18c47aa2620821ff72f282b41b5ad4af.jpg)"},{"id":465,"name":"Judges1","slug":"judges1","description":"TBD"},{"id":471,"name":"Submission Guide","slug":"submission","description":"# Getting Started [3-5 MIN]\n\n**1.** **You should submit your BUIDL via [DoraHacks.io](https://dorahacks.io/). Before that, make sure that you already have an account.**\n\nUse the **Sign in/up button** at the upper right corner of the page to access the sign-up options.\n\n

\n\n> **→ If you already have a BUIDL on DoraHacks**\n\nChoose your BUIDL project from **\"Apply with Existing BUIDL\"** and identify the track you want to join.\n\n> **→ If you want to submit a new BUIDL project**\n\nClick **“Create a new BUIDL”** and fill in the form as required. You'll be directed to \"Apply for 2023 Winter Polkadot Hackathon\" page after the new BUIDL setup.\n\nFill in the form to offer the information about your project. Note that for demo, demo link and social media, please offer **URLs (with http/https://)**.\n\n

\n\nDon't forget to check \"I agree to the User Agreement\".\n\n

\n\nBack to Application window. Choose your BUIDL project from **\"Apply with Existing BUIDL\"** and identify the track you want to join.\n\nWhen submission succeeds, you'll see this notification.\n\n

\n\n
\n\n

"}],"skills":null,"applied":false,"isCurrentHackerRegistered":false,"buidlsCount":39,"applicationsCount":39,"organization":{"id":371,"name":"OneBlock","logo":"https://cdn.dorahacks.io/static/files/1881e999b0545f5431d1c4e45bca1bcd.jpeg"},"description":"# Registration\n\n- **[Submit the form and sign up now ](https://forms.gle/DX359M661hg17tPN9)**\n\n- **Schedule**\n\n![en.jpeg](https://cdn.dorahacks.io/static/files/18b6b3954143f911d2ca7ab45f79eec4.jpeg)\n\n# About\n\n**[OneBlock](https://twitter.com/OneBlock_)** and **[Parity](https://www.parity.io/)** are excited to invite you to participate in our upcoming 2023 Winter **[Polkadot](https://polkadot.network/)** Hackathon, where developers can showcase their skills and create innovative solutions to improve the blockchain ecosystem. Here is all the information you need to know! **The hackathon officially begins on November 1, 2023, and registration will continue until December 22 at 12:00 AM UTC+8**.\n\n\"Decentralize everything and break down the silos between different blockchains\" is the original intention of Polkadot, and it is also the vision that drives and promotes the development and implementation of Web3. In 2023, the Polkadot ecosystem has achieved significant results in both ecological development and technological innovation. The number of active developers in the Polkadot ecosystem is leading by a large margin, with over 500 projects signed under the W3F Grant program, covering every layer of the Polkadot technology stack. We also look forward to helping and supporting the growth of more startup teams, which is why we are organizing the Polkadot Hackathon 2023 Winter and offering **over 300,000 USD** in generous prizes to participants, the prize will be awarded in DOT.\n\nThe 2023 Winter Polkadot Hackathon is the annual event in the Polkadot ecosystem. This hackathon will bring together investors, developers, Web3 projects, media professionals, and other members of society to jointly explore the next steps of Web3 and continue to promote progress and development in the industry.\n\nWelcome developers from all over the world who are interested in and have ideas about Web3 to participate. We look forward to seeing participants bring their inspiration and creativity to practice at the technical gala of the hackathon, and together, we will prosper the Polkadot ecosystem.\n\n# Introduction\n\n**[Parity](https://www.parity.io/)** Blockchain infrastructure for the decentralised web.From the Substrate blockchain framework to Polkadot, the sharded protocol enabling blockchains to operate seamlessly together at scale, Parity builds the foundation of Web 3.0.\n\n**[Polkadot](https://polkadot.network/)** unites and secures a growing ecosystem of specialized blockchains called parachains. Apps and services on Polkadot can securely communicate across chains, forming the basis for a truly interoperable decentralized web.\n\n**[Substrate](https://substrate.io/)** the blockchain framework for a multichain future.Substrate enables developers to quickly and easily build future proof blockchains optimized for any use case.\n\n**[OneBlock+](https://twitter.com/OneBlock_)** Focused on **#Substrate** **#Blockchain** developer community.We offer courses, workshops and hackathons to encourage more people to join and build blockchain projects. Join OneBlock+ for the latest tech and innovation.\n\n# The mentor team guides the participating projects\n\nDuring the competition, the organizer will organize online discussion meetings for each participating team. After the meeting, Parity engineers and investment institution researchers will serve as mentors and enter the team group to provide guidance. The participating teams will propose development problems and needs based on the team's own project progress and technical structure. The mentors will provide substantive suggestions to the team to help them successfully incubate the entries!\n\nTo be matched with a mentor, please submit your project plan as early as possible and then contact us with your request. Tutor resources are limited, and we match them based on project details. We do not guarantee that every team that requests a tutor will be matched.\n\n# Community\n\nIf you have any questions about the hackathon, you can contact us in the following ways:\n- [Hackathon Github](https://github.com/parity-asia/hackathon-2023-winter)\n- Email: hackathon.asia@parity.io\n- WeChat ID: yikuailianxi\n- [Hackathon Discord ](https://discord.com/invite/fE8deY4UbP)\n\n# Others\n\n**1.[Technical Resources](https://github.com/parity-asia/hackathon-2023-summer/blob/main/docs/technical-resources.md)**\n\n**2.Legal compliance**\n\nIn order to comply with domestic regulations, this hackathon will not touch on any of the following related topics:\n\n- Related to Initial Coin Offering.\n- Related to digital asset trading.\n- Any currency price discussion (Decentralized Exchange topics can discuss technology, not currency prices).\n- Games related to gambling and with gambling elements.\n\n# Intellectual property rights\n\nAll submissions remain the intellectual property of the individuals or organizations that developed them. By submitting an entry, entrants agree that the sponsor will have a fully paid, non-exclusive license to use such entry for judging the entry. \n\nEntrants agree that the sponsor shall have the right to promote the submission and use the name, likeness, voice and image of all individuals contributing to a submission, in any materials promoting or publicizing the Hackathon and its results, during the Hackathon Period and for three years thereafter. \n\nSome Submission components may be displayed to the public. Other Submission materials may be viewed by the sponsor and judges for screening and evaluation. By submitting an entry or accepting any prize, entrants represent and warrant that \n\n(a) submitted content is not copyrighted, protected by trade secret or otherwise subject to third party intellectual property rights or other proprietary rights, including privacy and publicity rights, unless entrant is the owner of such rights or has permission from their rightful owner to post the content; \n\nand (b) the content submitted does not contain any viruses, Trojan horses, worms, spyware or other disabling devices or harmful or malicious code.","onboardingCompleted":false,"registerFormUrl":null,"preRegisterTime":0,"publicContactHackerHandle":null,"hackersCount":136,"title":"2023 Winter Polkadot Hackathon","uname":"polkadot-hackathon-2023-winter","imageUrl":"https://cdn.dorahacks.io/static/files/18b6b3a6a199972f0e7182f4365ba62a.jpeg","originUrl":null,"startTime":1698768000,"endTime":1703217600,"timezone":"-480","city":null,"visible":true,"approvalStatus":6,"state":0,"voteUrl":null,"voteMechanism":null,"bonusPrice":300000,"bonusMechanism":null,"followersCount":0,"ecosystem":"Polkadot","applyGuide":null,"weight":32,"participationForm":"IRL","field":"HongKong,China","email":"oneblock.dev@gmail.com","contacts":"WeChat,yikuailianxi","externalContacts":null,"telegram":null,"discord":null,"whatsapp":null,"wechat":null,"prizeFundingEscrowed":0,"token":"USD","prizeSafeForm":0,"prizeSafeNetwork":null,"prizeSafeOwner":null,"prizeSafeWallet":null,"prizeSafePublishDate":null,"hasOnboarding":false,"isPublicTrackJudging":false,"isEndedTrackJudging":false,"question":null,"countryId":null,"cityId":null,"venueName":null,"venueAddress":null,"category":0,"isEnableBounty":true,"isBountyRequired":false,"isEndedBountyJudging":false,"bountiesLimitForBuidl":10,"isPublicBountyJudging":false,"status":2},"status":4,"bounty":null,"track":null,"table":"0","trackObj":{"id":506,"name":"DApp","judgingCriteria":"","weight":0},"bountyObjs":[]}],"chain":[],"chainList":[],"appliedGrant":false,"acceptRewards":false,"owner":104107,"ownerInfo":{"nickname":"aeyshubh","username":"U_b79222c22622e4","avatar":"https://cdn.dorahacks.io/static/files/18dffbca2b01b807e13c8044619848ea.jpeg"},"visible":true,"deleted":false,"continuousSponsoring":false,"pageView":0,"sponsoredCount":0,"starCount":0,"sponsoredAmount":"0.00","sponsoredPersons":0,"followers":3,"voteCount":0,"projectMembers":[],"bnbRound":null,"doraGrantDaoTags":[],"techTrees":[0],"infrastructureTags":[5,17,68,71],"otherInfrastructures":[],"lastEditor":{"id":104107,"username":"U_b79222c22622e4","date":1700804040000},"upvoted":false,"followed":false,"upvoters":{"count":2,"list":[{"id":7248,"hacker":{"username":"U_9bcd17a8a8631d","avatarUrl":"https://cdn.dorahacks.io/images/hacker-avatar/3.jpg","nickName":"hacker318b0de","introduction":""},"createdAt":"2024-02-29T00:31:40.314831+08:00","upvotes":"0.00","followed":false},{"id":7192,"hacker":{"username":"U_d6a155148ed85e","avatarUrl":"https://cdn.dorahacks.io/static/files/18e02147724ae45d8f5a6624e8d9dc18.png","nickName":"Flexband","introduction":""},"createdAt":"2024-02-26T21:49:28.994525+08:00","upvotes":"0.00","followed":false}]},"kycStatus":0,"ideas":[],"name":"DCAer","techniqueField":"","source":"-","vision":"A Dapp which Dollor Cost Average Tokens with just one Click and with On-Chain Notifications.","projectDescription":"# DCAer ~ A Dapp which Dollor Cost Average Tokens with just one Click and with On-Chain Notifications.\n## The Project is Deployed on **Phala and Polygon Mainnet**. \n\n![D1.png](https://cdn.dorahacks.io/static/files/18bfdc987f6795e7b783f1a4f8a88aba.png)\n\n- Polygon Consumer COntract : https://polygonscan.com/address/0x9a3cf3A5Bc231cC7Ba66fE9827fAa2ea099b8fCc#writeContract\n- Push Staging Channel : https://staging.push.org/channels?channel=0x82a7A0828fa8EB902f0508620Ee305b08634318A\n## DCAer :\n- ### User Story : **I want to invest 10$ daily in x token but I don't have time to perform swaps daily as it's Boring....**\n- Don't Worry,i Got you....\n- ### My solition :\n - Give how much Total amount you want to swap into a token.\n - Give Duration at which these swaps needs to be performed Eg : Every Hour in a day or Every 5 minutes.\n - Sign a Approval Request of Total Amount of tokens.\n - That's It.\n \n- ### Tech Stacks/ Process :\n - At Entry the User's data about DCA is Stored in An API .\n - Following Data is sotred :\n - Token 1(USDC) and Token 2(PHALA) to Swap\n - Total Value of Token 1 to swap in multiple x Durations .\n - Duration at which DCA Action needs to be take.\n - \n![D2.png](https://cdn.dorahacks.io/static/files/18bfdc9d39429859cec97184204a73ee.png)\n - **Phat Functions** are used to fetch User's data from the API with a Wallet Address .\n - This **Data** is then sent to **Consumer contract** through **Phala's Phat Function**.\n - ![D3.png](https://cdn.dorahacks.io/static/files/18bfdca12781fafdcb282ca43e5ae1e9.png)\n - The **receiving Side** of the consumer smart contract will **perform the Swap** with the Specified data.\n - After the **swap**, an **On-Chain Push Notification** will be sent to the **user's Wallet ** so that he/she is Notified about the **DCA Action**, after every Swap.\n - \n![D4.png](https://cdn.dorahacks.io/static/files/18bfdca766acb68ec0618ae46d98220e.png)\n - This process will continue till the **Allowance** of Token 1 becomes 0 for the consumer Contract.\n - User can repeat the same process by just **increasing the Allowance** of Token 1.\n \n- ### To Run:\n - Git clone and cd to Frontend.\n - run npm install there\n - Run index.html with Linve Server.\n - Subscribe to the Push Channel mentioned at the start.","teamDescription":"Shubham Patel ~ Creator of DCAer","githubPage":"https://github.com/aeyshubh/DCAer","githubVerify":0,"demoLink":null,"demoVideo":"https://youtu.be/zbGpsNShAjs","ownerTitle":null,"ownerIntroduction":null,"twitterVerified":false,"weibo":null,"nft":null,"scOwner":"","editTime":1700804040,"upvotes":"0.00","isRecruitingEnabled":false,"recruitingInfo":"","recruitingLink":null,"twitter":"aeyshubh","facebook":null,"instagram":"aeyshubh","socialTelegram":null,"socialDiscord":null,"socialLinks":[],"showedFunding":false,"createdAt":"2023-11-24T04:09:25.417710+08:00","updatedAt":"2023-11-24T13:34:00.072367+08:00","milestoneEditor":104107,"path":"/buidl/8182","techField":"","techFieldAry":[],"techTree":[0],"tags":[5,17,68,71],"otherTags":[],"origin":"-","intro":"# DCAer ~ A Dapp which Dollor Cost Average Tokens with just one Click and with On-Chain Notifications.\n## The Project is Deployed on **Phala and Polygon Mainnet**. \n\n![D1.png](https://cdn.dorahacks.io/static/files/18bfdc987f6795e7b783f1a4f8a88aba.png)\n\n- Polygon Consumer COntract : https://polygonscan.com/address/0x9a3cf3A5Bc231cC7Ba66fE9827fAa2ea099b8fCc#writeContract\n- Push Staging Channel : https://staging.push.org/channels?channel=0x82a7A0828fa8EB902f0508620Ee305b08634318A\n## DCAer :\n- ### User Story : **I want to invest 10$ daily in x token but I don't have time to perform swaps daily as it's Boring....**\n- Don't Worry,i Got you....\n- ### My solition :\n - Give how much Total amount you want to swap into a token.\n - Give Duration at which these swaps needs to be performed Eg : Every Hour in a day or Every 5 minutes.\n - Sign a Approval Request of Total Amount of tokens.\n - That's It.\n \n- ### Tech Stacks/ Process :\n - At Entry the User's data about DCA is Stored in An API .\n - Following Data is sotred :\n - Token 1(USDC) and Token 2(PHALA) to Swap\n - Total Value of Token 1 to swap in multiple x Durations .\n - Duration at which DCA Action needs to be take.\n - \n![D2.png](https://cdn.dorahacks.io/static/files/18bfdc9d39429859cec97184204a73ee.png)\n - **Phat Functions** are used to fetch User's data from the API with a Wallet Address .\n - This **Data** is then sent to **Consumer contract** through **Phala's Phat Function**.\n - ![D3.png](https://cdn.dorahacks.io/static/files/18bfdca12781fafdcb282ca43e5ae1e9.png)\n - The **receiving Side** of the consumer smart contract will **perform the Swap** with the Specified data.\n - After the **swap**, an **On-Chain Push Notification** will be sent to the **user's Wallet ** so that he/she is Notified about the **DCA Action**, after every Swap.\n - \n![D4.png](https://cdn.dorahacks.io/static/files/18bfdca766acb68ec0618ae46d98220e.png)\n - This process will continue till the **Allowance** of Token 1 becomes 0 for the consumer Contract.\n - User can repeat the same process by just **increasing the Allowance** of Token 1.\n \n- ### To Run:\n - Git clone and cd to Frontend.\n - run npm install there\n - Run index.html with Linve Server.\n - Subscribe to the Push Channel mentioned at the start.","images":["https://cdn.dorahacks.io/static/files/18f952a6d72cfde054c70724fc39756e.jpg"],"team":"Shubham Patel ~ Creator of DCAer","github":"https://github.com/aeyshubh/DCAer","demo":null,"video":"https://youtu.be/zbGpsNShAjs","socialTwitter":"aeyshubh","socialFacebook":null,"socialInstagram":"aeyshubh","nftId":null,"haxonBuidls":[{"id":8884,"projectId":8182,"name":"DCAer","track":"[DEFAULT_TRACK]","bounties":["$20,000 🦄 The next up, STARTUP prize","Phala Network Bounty"],"haxonId":215,"haxonName":"Polygon DevX [India] Hackathon X DoraHacks","status":2,"haxonCreateAt":"2023/10/31 18:30:00 UTC"},{"id":9102,"projectId":8182,"name":"DCAer","track":"DApp","bounties":[],"haxonId":220,"haxonName":"2023 Winter Polkadot Hackathon","status":2,"haxonCreateAt":"2023/10/31 16:00:00 UTC"}],"kudoData":null,"bountyObjs":[],"badges":["{\"schema\":\"BADGE\",\"d\":{\"index\":\"b8002\",\"badgeType\":\"buidl\",\"path\":\"/buidl/8182/achievement/b8002\",\"ownerId\":8182,\"iconName\":\"b1\",\"updatedDate\":\"2024/01/29\",\"title\":\"Polygon DevX [India] Hackathon X DoraHacks\",\"detail\":\"Winner\",\"tag\":\"Hackathon\",\"imageUrl\":\"https://cdn.dorahacks.io/static/badge/b1_Polygon~c32DevX~c32[India]~c32Hackathon~c32X~c32DoraHacks.webp\",\"shareImageUrl\":\"https://cdn.dorahacks.io/static/badge/b1_Polygon~c32DevX~c32[India]~c32Hackathon~c32X~c32DoraHacks.jpg\",\"id\":8002,\"metaInfo\":{\"type\":\"HACKATHON_WINNER\",\"hackathonId\":215,\"title\":\"Polygon DevX [India] Hackathon X DoraHacks\"},\"createdAt\":1706517260,\"updatedAt\":1706517260,\"type\":1,\"subjectId\":215,\"metadata\":{},\"buidl\":8182}}","{\"schema\":\"BADGE\",\"d\":{\"index\":\"b7362\",\"badgeType\":\"buidl\",\"path\":\"/buidl/8182/achievement/b7362\",\"ownerId\":8182,\"iconName\":\"b0\",\"updatedDate\":\"2023/12/12\",\"title\":\"2023 Winter Polkadot Hackathon\",\"detail\":\"Participation\",\"tag\":\"Hackathon\",\"imageUrl\":\"https://cdn.dorahacks.io/static/badge/b0_2023~c32Winter~c32Polkadot~c32Hackathon.webp\",\"shareImageUrl\":\"https://cdn.dorahacks.io/static/badge/b0_2023~c32Winter~c32Polkadot~c32Hackathon.jpg\",\"id\":7362,\"metaInfo\":{\"type\":\"HACKATHON_PARTICIPATION\",\"hackathonId\":220,\"title\":\"2023 Winter Polkadot Hackathon\"},\"createdAt\":1702391599,\"updatedAt\":1702391599,\"type\":0,\"subjectId\":220,\"metadata\":{},\"buidl\":8182}}"]}}