{"schema":"BUIDL","d":{"id":7182,"members":[],"pictures":["https://cdn.dorahacks.io/static/files/18a6590fcdfa2215f64701c4b5f8b556.png"],"roundProjects":[],"hackathonProjects":[{"id":7181,"hackathon":{"id":123,"tabSet":[{"id":237,"name":"Bounties","slug":"bounties","description":"# 🚀$100,000+ IN BOUNTIES SO FAR 🚀\n\n

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\n\n\n\n# XDC.NETWORK - $25,000\n\n

\n\n**🏆 BOUNTY PRIZE AMOUNT**\n\n- Total prizes of $25,000 in XDC\n\nThe top 3 best overall projects will be selected for winning prizes, with $5,000 also available for best in category submissions. Hackathon winners are also eligible to win best in category for competing in recommended categories!\n- **🥇1st $10,000**\n- **🥈2nd $6,000**\n- **🥉3rd $4,000**\n- 🧰 Web3 Developer/Community Tool - Best submission **$1,000**\n- 🚛Supply Chain Management - Best submission **$1,000**\n- 🖼NFTs - Best submission **$1,000**\n- 💰Learn to Earn - Best submission **$1,000**\n- 📱Tokenization - Best Submission **$1,000**\n\n**🚀 ABOUT XDC NETWORK**\n\n- The XDC Network is an enterprise grade, open-source, Layer 1 blockchain that provides high performance with EVM-compatibility. Using a delegated proof-of-stake consensus mechanism, the XDC Network has near-zero gas fees, 2 second block time, and is highly scalable. Its interoperability, scalability, low cost, and smart contract capabilities make it a platform of choice for anyone focused on building with blockchain technology.\n\n**🚀 ABOUT XDC FOUNDATION**\n\n- XDC Foundation aims to accelerate the expansion and development of the XDC ecosystem with a focus on network adoption and utility. To align with this focus, hackers should submit projects that provide utility and value to users in a real-world setting. The following categories have been recommended, however, we understand you may have good ideas. Feel free to be creative and compete with your own ideas!\n\n**CATEGORIES**\n\n- **🧰 Build a Web 3 Developer or Community Tool** \n- Create and document a useful tool, dashboard, dev library, transaction explorer, DAO coordination tool, or web3 public good that will supercharge development and coordination for the XDC community!\n- **🚛 Supply chain dApp** \n- Build a supply chain management solution for invoicing, supply chain management documents, traceability, product management or authentication, automated services, and other supply chain management services.\n- **🖼NFTs** \n- Utilize NFTs to build token gated vaults, access control and permissions, loyalty programs, perks, tickets, soul bound tokens, or creative features for NFTs.\n- **💰 Learn to earn** \n- Do you like teaching people how to build in Web3? If so, why not build an educational dApp focused on users that want to start developing on the XDC Network! Teach users how they can get started with deploying their first smart contract, building a dApp, coding with Solidity or Vyper, or how Web2 developers can bring their experience to Web3.\n- **📱** Tokenization \n- Build an application that leverages the benefits of tokenization using the XDC Network. Examples could be an app that makes spending, earning, or even sending easy. Tool or marketplace for RWA tokenization, suppliers, or other tangible and intangible assets. Applications that leverage tokenization for data, identity, fractional ownership, proof of ownership, fraud prevention, or other real world use cases are also welcome! Prizes will be awarded for best in category however, all submissions will be considered. So feel free to come with YOUR OWN amazing ideas to XDC.\n\n**GET STARTED**\n\n- **[XDC Network Official Docs](https://docs.xdc.community/)**\n- **[XDC Mainnet & Testnet Details](https://docs.xdc.community/get-details/networks)**\n- **[XDC Network Github Repository](https://github.com/XinFinOrg)**\n- **[XDC Community Developers' Discord](https://discord.com/invite/MFeHJ6C5gn)**\n- **[Developers’ Forum](https://www.xdc.dev/)**\n\n---\n\n# **Base - $5,000**\n\n

\n\n**🏆BOUNTY PRIZE AMOUNT**\n\n- Prize Pool of 5 winners at $1k each\n\n**🚀 About Base**\n\nBase is an Ethereum-equivalent L2 blockchain built on OP Stack by Coinbase. Our vision is to collectively work towards an ambitious goal: bringing the next billion users onchain. Base is a founding participant in the Superchain, powered by Optimism.\n\n**🚀 Challenge Description**\n\n**Build a project on Base with two main themes:**\n\n- Help bring Base to the masses with creating a consumer focused product\n- Deploy a project using distributed identity ideas to make blockchain more friendly and social\n\n**Build a Consumer Product**\n\n- Leveraging Base, build a user friendly consumer product\n- Build a tool to make subscription payments easier and simpler\n- Build an event ticketing system highlighting benefits of on chain visibility\n- Fill any gaps currently not deployed on Base\n\n**Distributed Identity**\n\n- Deploy a project to visualize onchain summer data\n- Deploy a project utilizing a paymaster to pay gas only for a specific user base (NFT holder, previous onchain activity)\n- Deploy a frontend utilizing account abstraction to provide a more user-friendly onboarding and transaction experience\n\n**🚀 Requirements**\n\n- Work must be deployed on or connected to Base in some way\n- Work that is open source and free for others to use\n- Shared artifacts (GitHub, planning documents, and a short video)\n- For this hackathon, the project must be a new development in order to ensure equal opportunity\n\n**⚖️ Judging Criteria**\n\n- Functional prototype highlighting a solution\n- Creativity\n- Presentation\n- Business value\n\n**🚀Resources**\n\n- https://docs.base.org/\n\n- https://docs.base.org/base-camp/docs/welcome\n\n- https://base.mirror.xyz/\n\n- https://twitter.com/buildonbase\n\n- https://base.org/discord\n\n- https://bridge.base.org/\n\n- https://coinbase.com/faucets/base-ethereum-goerli-faucet\n\n- https://github.com/ethereum-optimism/optimism-tutorial\n\n\n# ZKSYNC ERA - $5,000\n\n

\n\n**🏆 BOUNTY PRIZE AMOUNT**\n\n- Pool of **$5,000**\n\n
\n\n**🚀 ABOUT ZKSYNC ERA**\n\n- zkSync Era is the future-proof zkEVM on the mission to scale freedom for all.\n\n
\n\n**🚀 BOUNTY NAME**\n\n- Wallets & Smart Accounts & Paymasters\n\n
\n\n**🚀 CHALLENGE DESCRIPTION**\n\n- Please find the description here: [https://www.notion.so/matterlabs/zkSync-Era-Hackathon-Challenges-8bb9ee60bc544230be6a1c708de5f8cf?pvs=4](https://www.notion.so/8bb9ee60bc544230be6a1c708de5f8cf?pvs=21).\n\n
\n\n***Watch the ZKSYNC ERA Virtual Bounty Presentation***\n\n\n![youtube](https://youtu.be/ZA580K6Y2WA)\n\n\n\n\n\n\n**🚀 REQUIREMENTS**\n\n- All smart contract accounts must implement the IAccount interface from zksync-contracts.\n- Accounts must be deployed to zkSync Era testnet or locally (see local testing info in resources).\n- All paymaster contracts must implement the IPaymaster interface from zksync-contracts.\n- Paymasters must be deployed to the zkSync Era testnet or locally (see local testing info in resources)\n\n
\n\n**⚖️ JUDGING CRITERIA**\n\n- **Innovation**:\n - How unique and original is the project? Does it solve a real-world problem in a new and creative way?\n\n- **Technical merit**:\n - The execution of the project from a technical standpoint.\n - Well-written code\n - Well-documentation\n\n- **Presentation and Pitch**:\n - How well does the team present their project?\n - Purpose\n - Features\n - Benefits\n\n- **Completeness**:\n - How much from the challenge topic is completed and how much is left to be done?\n\n- **Sustainability:**\n - Should the presented project get funding, would it be sustainable in the long run?\n\n- **Practicality**:\n - When it comes to using the project, would it be practical or burdensome?\n\n- **Scalability**:\n - How well can the project handle increasing users or data?\n\n- **Alignment:**\n - Theme alignment of the event and the hackathon’s goals\n\n
\n\n**RESOURCES:**\n\n- https://www.youtube.com/watch?v=M8p5ucnOH5E\n- https://era.zksync.io/docs/dev/developer-guides/aa.html\n- https://era.zksync.io/docs/dev/developer-guides/aa.html#iaccount-interface\n- https://era.zksync.io/docs/dev/tutorials/custom-aa-tutorial.html\n- https://era.zksync.io/docs/dev/fundamentals/interacting.html#connecting-to-zksync-era-on-metamask\n- https://era.zksync.io/docs/api/hardhat/testing.html\n- https://www.youtube.com/watch?v=N9a4IMDIIGY\n- https://era.zksync.io/docs/dev/developer-guides/aa.html#paymasters\n- https://era.zksync.io/docs/dev/developer-guides/aa.html#ipaymaster-interface\n- https://era.zksync.io/docs/dev/tutorials/custom-paymaster-tutorial.html\n- https://era.zksync.io/docs/dev/fundamentals/interacting.html#connecting-to-zksync-era-on-metamask\n- https://era.zksync.io/docs/api/hardhat/testing.html\n\n\n\n\n# METISDAO FOUNDATION - $1,000\n\n

\n\n**🏆BOUNTY PRIZE AMOUNT**\n\n- **1,000 CAD**\n\n**🚀 ABOUT METISDAO FOUNDATION**\n\n- MetisDAO Foundation is a non-profit organization that is focused on building Web3 Economy based on Metis Layer 2 giving equal opportunity to everyone to become a participant in the Economy by founding and scaling own decentralized startups (*EcoNodes*).\n\n**🚀 BOUNTY NAME**\n\n- The Next Metis *EcoNode*\n\n**🚀 CHALLENGE DESCRIPTION**\n\n- MetisDAO Foundation is looking for the ideas, teams, and leaders that would bring users to Metis Ecosystem and contribute to the growing Metis Web3 Economy.\n\n- Some example of our existing *EcoNodes* are:\n - [Metis L2](https://metis.io) - Ethereum scalability solution with 100M TVL\n - [KORIS](https://koris.io) - infrastructure for the Decentralized Autonomous Companies (DACs) and helping them to streamline the influencer marketing campaigns\n - [NUVO](https://nuvosphere.io) - data-infrastructure for the decentralized identity and reputation power\n\nDo the research and come up with your *EcoNode* idea based on what is missing, but very much needed in the Metis Web3 Economy.\n\n**🚀 REQUIREMENTS**\n\n- Do the research and analysis of the existing MetisDAO Web3 Economy (Metis L2, Koris, Nuvo)\n- Do the market research of the Web3 space to search for the possible most desirable innovation or idea of the business that would fit into Metis Web3 Economy\n- Create the idea of the Next Metis *EcoNode* (startup) pitch presentation and include the following slides (Problem, Solution, Vision, Team, App Mockups, Go To Market Strategy, Pre-seed Funding Requirements (Token and/or Equity))\n\n**⚖️ JUDGING CRITERIA**\n\n**1.** Clear problem and feasible solution for the *EcoNode* Idea\n\n**2.** Grand Vision\n\n**3.** Capable team to execute the idea\n\n**4.** Usage of the existing MetisDAO *EcoNodes* in the Go To Market Strategy\n\n**5.** Clear fundraising requirements (why do you need that much money and what they will be used for)\n\n**Qualifying projects need to comply with all five criteria.**\n\n**RESOURCES**\n\nLearning Materials:\n\n- Read about MetisDAO Foundation and its *EcoNodes* here:\n - https://medium.com/@MetisDAOfdn/unveiling-metisdao-foundation-empowering-decentralized-ecosystem-governance-43adf4884c15\n - [https://metisdao.foundation](https://metisdao.foundation/)\n\n***What we want to see in your submission:***\n\nNext Metis *EcoNode* pitch presentation with the following slides:\n\n- Problem\n- Solution\n- Vision\n- Team\n- App Mockups\n- Go To Market Strategy (Consider to use existing *EcoNodes* (Metis L2, Koris, Nuvo) in your Go To Market Strategy\n- Pre-seed Funding Requirements (Token and/or Equity)\n\n\n\n# METIS - $3,000\n\n

\n\n**🏆BOUNTY PRIZE AMOUNT**\n\n- Total Prize of $3,000 CAD\n\n- **🥇 1st $2,000** \n- **🥈2nd $1,000**\n\n\n**🚀 ABOUT METIS**\n\n- Metis is an EVM-Equivalent Ethereum Layer-2 protocol focused on bridging the gap between Web2 and Web3. Metis provides users with a secure, decentralized, and scalable easy-to-use network. By combining a robust Layer 2 with on-chain credentials and Decentralized Autonomous Companies (DACs), Metis is building the perfect ecosystem to host open and trustless collaboration, secured by Ethereum.\n\n**🚀CHALLENGE DESCRIPTION**\n\nProblem Statement\n\nMetis L2 Blockchain Analytics Dashboard with BigQuery Integration\n\n- In this blockchain hackathon, the objective is to build a comprehensive protocol dashboard that leverages the capabilities of BigQuery blockchain-etl for tracking and analyzing the Metis L2 blockchain. \n\n- The dashboard should provide valuable insights and visualizations related to various metrics such as: Total Value Locked (TVL) charts, Daily Active Users (DAU), Weekly Active Users (WAU), Monthly Active Users (MAU), transaction volume, transaction count, active deployments of contracts, bridge deposits, bridge withdrawals, token volume, token liquidity, and more.\n\n- The solution should consist of both front-end and back-end components. The front-end should include an intuitive user interface that displays the collected data and presents it in the form of interactive charts. The back-end should establish a seamless connection with Google BigQuery, allowing for efficient data retrieval and processing.\n\n**🚀 REQUIREMENTS**\n\nKey Tasks:\n\n- Create the \"metis-etl\" repository and configure it to track essential data such as blocks, transactions, token transfers, accounts, and more on Google BigQuery.\n- Implement a proof of concept for tracking and decoding events, similar to the functionality provided by ethereum-etl-airflow and polygon-etl.\n- Develop a back-end system capable of querying the data stored in Google BigQuery.\n- Design and implement a front-end interface that showcases the collected data and visualizes it using charts and graphs.\n\n**✨ *BONUS REWARDS*✨:**\n\n- Additionally, participants will have the opportunity to earn extra rewards (+PARSIQ API credits) by utilizing the PARSIQ Tsunami API.\n\n**⚖️ JUDGING CRITERIA**\n\n- **Note:** Detailed documentation of the work, including the configuration process for metis-etl repository, is required as part of the project deliverables.\n\n**RESOURCES**\n\n- https://cloud.google.com/blog/products/data-analytics/ethereum-bigquery-public-dataset-smart-contract-analytics\n- https://github.com/blockchain-etl/ethereum-etl-airflow\n- https://github.com/blockchain-etl/ethereum-etl\n- https://cloud.google.com/blog/products/data-analytics/ethereum-bigquery-how-we-built-dataset\n- https://docs.parsiq.net/\n- https://cloud.google.com/blog/products/data-analytics/introducing-six-new-cryptocurrencies-in-bigquery-public-datasets-and-how-to-analyze-them\n- https://docs.metis.io/meta/\n- https://metis.io/ecosystem/\n\n\n# ETHEREUM ATTESTATION SERVICE - $5,000\n\n

\n\n**🏆BOUNTY PRIZE AMOUNT**\n\n- Prize Pool of $5,000\n\n- **🥇1st place = $2,000**\n\n- **🥈2nd place = $1,500**\n\n- **🥉3rd place = $1,000**\n\n- **🏅4th place = $500**\n\n**🚀 ABOUT ETHEREUM ATTESTATION SERVICE**\n\n- EAS is an infrastructure public good for making attestations onchain or offchain. Attestations are digital claims signed by an entity about anything or anyone. Attestations are used for various use cases such as decentralized identity, proving the authenticity of content, voting systems, DAO governance and roles, account abstraction authorizations, proof of contribution or impact, and [much more](https://docs.attest.sh/docs/category/use-cases).\n\nOpen-source. Permissionless. Tokenless. Free-to-use.\n\n**🚀 CHALLENGE DESCRIPTION**\n\n**Consider building with attestations when you need to:**\n\n- Verify certain aspects or attributes of something’s identity (verifications, skills, identity)\n- Provide a guarantee that something happened, was said, or was completed.\n- Provide proof of provenance or the origination of something\n- Provide a 3rd party proof of anything - like provenance, skills, funds, attendance, contribution\n- Build a reputation system within a community, marketplace, or app.\n- Generate a badge or verification for someone/thing\n- Prove/verify compliance in a process to prove specific procedures were followed\n- Prove/verify that a statement was made by someone at sometime\n- Provide more transparency in decision-making processes\n- Generating receipts of payments or events\n\n**Below are a few ideas to help inspire what you could build during a hackathon:**\n\n- Social graphs based on attestation data\n- Sybil resistance use case for various types of verifications\n- Account Abstraction + Attestations for Authorization (ex. Requiring an attestation from the treasury manager to authorize a payment).\n- Dynamic NFTs based on attestation data and ERC-6651\n- Simple ticketing applications for meetups or events\n- Verify the authenticity of content in the age of AI\n- Zero-knowledge attestations using EAS + Sismo or other to prove you have an attestation without revealing the address that has it\n- Proof of anything like proof of attendance, compliance, or skill.\n- Attesting to the roles in an online community\n- Subscription-based memberships using attestations that expire\n- Digital voting systems for any competition or community decision\n\n**🚀 REQUIREMENTS**\n\n- Register or use a schema on EAS\n- Have made actual onchain or offchain attestations\n- Be able to demo a functioning application\n\n**RESOURCES:**\n\n- [Website]([https://attest.sh](https://attest.sh/))\n\n- [Documentation]([https://docs.attest.sh](https://docs.attest.sh/))\n\n- [SDK](https://docs.attest.sh/docs/getting--started/javascript)\n\n- [Github](https://github.com/ethereum-attestation-service)\n\n- [Explore Ideas](https://docs.attest.sh/docs/category/use-cases)\n\n- [GraphQL](https://docs.attest.sh/docs/getting--started/api)\n\n- [What are attestations](https://optimism-goerli.easscan.org/learn)\n\nAttestation Explorers\n\n- [Sepolia]([https://sepolia.easscan.org](https://sepolia.easscan.org/))\n\n- [Base Goerli]([https://base-goerli.easscan.org](https://base-goerli.easscan.org/))\n\n- [Optimism Goerli]([https://optimism-goerli.easscan.org](https://optimism-goerli.easscan.org/))\n\n- [Mainnet]([https://easscan.org](https://easscan.org/))\n\n- [Arbitrum]([https://arbitrum.easscan.org](https://arbitrum.easscan.org/))\n\nSample apps:\n\n- [MetIRL - A simple attestation app for meeting someone IRL]([https://metirl.org](https://metirl.org/))\n\n- [Speaketh - A social network for posting comments]([https://speaketh.org](https://speaketh.org/))\n\n- [Cool person social graph]([coolgraph.ethcatalog.org](http://coolgraph.ethcatalog.org/))\n\n- [Quadratic voting system]([devfolio.co/blog/introooducing-quadratic-voting-on-devfolio](http://devfolio.co/blog/introooducing-quadratic-voting-on-devfolio/))\n\n\n# AI ARENA - $2,500\n\n

\n\n**🏆 BOUNTY PRIZE AMOUNT**\n\n- **$2,500 CAD**\n\n**🚀 ABOUT AI ARENA**\n\n- AI Arena is on a mission to foster Artificial Intelligence (AI) intuition and literacy for all through a revolutionary gaming experience. Although AI is a defining technology that is transforming the world, many find the concept both complex and intimidating.\n\nThat’s where we come in 🎉.\n\n- Gain AI literacy and sharpen your intuition with AI Arena, the first game to integrate Human x AI collaboration; making AI more approachable, accessible and ultimately allowing for a greater, more positive impact on society.\n\n**🚀 BOUNTY NAME**\n\n- The AI Arena Hack\n\n**🚀CHALLENGE DESCRIPTION**\n\n- As part of our commitment to foster the next generation of technology and gaming enthusiasts, we are launching a challenge to bring together the brightest minds in the Toronto tech scene, from blockchain enthusiasts to talented game developers and ML researchers, to fuse traditional gaming with groundbreaking blockchain and AI technologies.\n\nThe task is simple, though formidable: \n\n- Build a unique on-chain game that leverages components of AI. The goal is to create a game that not only captivates with its gameplay but also has all its logic and state transitions occur on-chain. \n\n- The game should also leverage AI in a fun and creative way. \nYour game can be a collaborative multi-player game with a self-improving boss, a strategy game that uses predictive models to outwit your opponents, or even an RPG with an ever-evolving AI character — the sky's the limit!\n\n- The criteria for success are engaging gameplay, relevant uses of AI and blockchain technologies, and creativity. \n\n- A prize of $2,500 will be awarded to the winning team. \n\nWe can’t wait to play your submissions!\n\n**🚀 REQUIREMENTS**\n\n- No technical limitations except that the on-chain portion should use Solidity\n\n- Project cannot be a past project and has to be a new project made specifically for this hackathon to ensure fairness for all participants\n\n**⚖️ JUDGING CRITERIA**\n\n- Fun and engaging gameplay, creativity, relevant use of blockchain, relevant use of AI.\n\n**RESOURCES**\n\n- [AI ARENA Documentation Site](https://docs.aiarena.io/everything-you-need-to-know)\n\n
\n\n# **SHIB.IO - $5,000**\n\n

\n\n🏆 **BOUNTY PRIZE AMOUNT**\n\n- **$5,000 USD in BONE**\n\n**🚀 ABOUT SHIB.IO**\n\n- The Future of Decentralization\n\n**🚀 BOUNTY NAME**\n\n- Shibarium and Shib The Metaverse Hackathon : Co-sponsored by Unification\n\n**🚀 CHALLENGE DESCRIPTION**\n\nCan you imagine endless possibilities and push the limits of technology and creativity with this bounty for one or five people?\n\n- The Shibarium Hackathon invites tech enthusiasts, developers, designers, and visionaries to explore the next frontier of human interaction together.\n- Shibarium Hackathon is all about collaboration. We encourage participants to form diverse teams to collaborate on ambitious projects in a welcoming environment.\n- The challenge will encourage teams to combine technical and creative skills to create immersive experiences.\n- Healthcare\n- DEFI\n- Zero trust finance with speed\n- DC/OS (Distributed Cloud Operating System)\n- Low code DeFi for small businesses\n\n**🚀 REQUIREMENTS**\n\n- In addition to healthcare, DeFi, zero trust finance with speed, cryptography, DC/OS (Distributed Cloud Operating System), and low code DeFi are all possible applications. During this hackathon, you are free to build anything you like. In fact, we want you to come up with something completely original and new. Make the most of this opportunity to showcase your skills and bring your unique ideas to life.\n- For this hackathon, the project must be a new development in order to ensure equal opportunity.\n\nAll participants will benefit from this requirement:\n\n- Team members should be encouraged to participate equally\n- Shibarium testnet is required for all smart contracts\n- Maintaining a work documentation\n- 2 to 5 minute short video\n\n**⚖️ JUDGING CRITERIA**\n\n- Healthcare, DEFI, zerotrust finance with speed using blockchain, cryptography, DC/OS (Distributed Cloud Operating System), low code DEFIs\n- Documentation (Technology and Architecture)\n- Work documentation\n- Business, health, finance, and low-code apps solved\n- The effectiveness of your pitch with total addressable market (TAM)\n\n**RESOURCES**\n\n- https://www.shib.io/\n- https://www.shibthemetaverse.io/\n- https://www.shibariumecosystem.com/\n- https://blog.shib.io/\n\n# **AXELAR - $4,000**\n\n

\n\n**🏆 BOUNTY PRIZE AMOUNT**\n\n- Prize Pool of $4,000 in USDC\n - **🥇 1st $2,500**\n - **🥈 2nd $1,000**\n - **🥉 3rd $500**\n\n**🚀 ABOUT AXELAR**\n\n- Axelar powers the interchain future\n\n**🚀 BOUNTY NAME**\n\n- Prize for using Axelar GMP for sending Interchain Messages / Tokens\n\n**🚀 CHALLENGE DESCRIPTION**\n\n- Use Axelar in your project to build a DApp that takes advantage of the ability to interact with contracts across multiple chains using Axelar’s General Message Passing.\n\n**🚀 REQUIREMENTS**\n\n- Use GMP’s call Contract or call Contract With Token to provide valuable interchain functionality as part of your DApp\n- Projects will be judged on Viability, Creativity, and how essential being Interchain is to your DApp\n\nPlease include the following in the readme.md / bounty.md of your application:\n\n- You must share an AxelarScan link with a completed Interchain transaction\n- You must share the source code of your DApp\n- You must share at least 2 positive or negative experiences you had with learning and using Axelar\n\n⚖️ **JUDGING CRITERIA**\n\n- Projects will be judged on:\n - Viability\n - Creativity, and\n - How essential being Interchain is to your DApp\n\n**RESOURCES:**\n\n- https://docs.axelar.dev/\n- https://docs.axelar.dev/dev/general-message-passing/gmp-messages https://docs.axelar.dev/dev/general-message-passing/examples\n- https://www.youtube.com/@Axelarcore\n\n# **ALEO - $5,000**\n\n

\n\n🏆 **BOUNTY PRIZE**\n\n- Prize Pool of $5,000 USD\n - **🥇 1st $2,500**\n - **🥈 2nd $1,500**\n - **🥉 3rd $1,000**\n\n🚀 **ABOUT ALEO**\n\n- Where applications become private.\n\n🚀 **BOUNTY NAME**\n\n- Privacy-Preserving dApps on Aleo\n\n🚀 **CHALLENGE DESCRIPTION**\n\n- We are excited to have you join us for this event where we will explore the limitless potential of privacy-preserving blockchain technology. This brief description outlines a specific bounty challenge that we present to the participants. So, gear up and let's dive into the details!\n- Aleo is a developer platform that uses zero-knowledge cryptography to enable digital transfers of value that are programmable, secure, and scalable. Aleo is launching a next-gen blockchain & new consensus protocol that is faster, more efficient, and more decentralized than traditional models. Aleo is more than a blockchain. It’s a new computing paradigm defined by client-side execution & cutting-edge cryptography designed for the next-generation web.\n- This bounty seeks to reward builders that create fun and interesting zero-knowledge dApps on Aleo. Below we’ve included a few example categories and applications for inspiration.\n\n🚀 **REQUIREMENTS**\n\n- Please note that we will only award prizes to projects that are newly built at the hackathon. For additional instructions please see below:\n\n**1.** Write your application using Leo (https://github.com/AleoHQ/leo)\n\n**2.** Deploy your application on Testnet 3 using deploy and execute (https://developer.aleo.org/testnet/getting_started/deploy_execute) & our developer tooling (https://aleo.tools/).\n\n**3.** Verify your application is successfully deployed via our on-chain program registry.\n\n**4.** Share your artifacts, e.g., GitHub repo, any planning docs, specifications, etc. (A video demo and GitHub repo MUST be submitted).\n\n**⚖️ JUDGING CRITERIA**\n\n- Based on requirements specified above.\n\n**RESOURCES**\n\n- [Website](https://aleo.org/)\n- [Twitter](https://twitter.com/aleohq)\n- [Discord](https://discord.gg/aleohq)\n- [Developer Docs](http://developer.aleo.org/)\n- [Leo Playground](http://play.leo-lang.org/)\n- [AleoHQ GitHub](https://github.com/aleohq)\n- [Aleo SDK](https://aleo.tools/)\n- [Awesome Aleo GitHub Repo](https://github.com/howardwu/awesome-aleo)\n\n**Tutorials**\n\n- [How to Deploy a Zero-Knowledge Smart Contract](https://medium.com/@gweiworld/deploy-a-zero-knowledge-smart-contract-e7a860df047)\n- [Zero to One: Developing on Aleo](https://www.youtube.com/watch?v=Nxx6p5u_XRU&ab_channel=ZeroKnowledge)\n- [Demystifying ZK Programming: Decentralized, Private Computations on Aleo](https://www.youtube.com/watch?v=uMmAUssK-PA&ab_channel=Aleo)\n- [Aleo Developer Workshop: Leo Coding and Examples](https://www.youtube.com/watch?v=ABPCr2TwrgE&ab_channel=Aleo)\n\n# **STARKWARE - $4,500**\n\n

\n\n🏆 **BOUNTY PRIZE**\n\n- Prize Pool of $4,500 USD\n - **🥇 1st $2,000**\n - **🥈 2nd $1,500**\n - **🥉 3rd $1,000**\n\n🚀 **ABOUT STARKWARE**\n\n- StarkWare develops scaling solutions for the Ethereum blockchain based on STARK Validity Proofs. It has launched StarkEx – a SaaS scaling engine, and Starknet, a Layer 2 Validity Rollup. It has also developed Cairo, a Turing-Complete Programming Language.\n- Starknet is a permissionless Validity-Rollup (also known as a “ZK-Rollup”) that operates as an L2 network over Ethereum. It enables any dApp to achieve scale for its computation without compromising Ethereum’s composability and security, thanks to Starknet’s reliance on a state-of-the-art cryptographic proof system - STARK.\n\n🚀 **BOUNTY NAME**\n\n- Starknet and Cairo\n\n🚀 **CHALLENGE DESCRIPTION**\n\n- If you had much more computing power than Ethereum, an order of magnitude lower gas fees, native account abstraction, a powerful programming language and all of that secured by zk-proofs... What would you build?\n- Starknet offers all of that using the Cairo programming language.\n\nWhat you build and present for the hackathon is up to you but here are some ideas that might help you get started:\n\n- **Dojo:** If you are into gaming and want to explore the idea of Autonomous Worlds pioneered by MUD but with a more powerful programming language and a more performant environment, Dojo might be of interest to you.\n- **Storage Proofs:** If you care about cross chain interoperability without relying on faulty bridges Storage Proofs by [Herodotus](https://www.herodotus.dev/) might be what you are looking for.\n- **Account Abstraction:** If you want to focus on improving usability and onboard web2 users to blockchain, Account Abstraction supported at the protocol level combined with WebAuthn might give you the tools you need.\n- **L1-L2 messaging:** If you want to create hybrid apps where half of the logic resides on Ethereum and the other half on Starknet, you can use the native L1-L2 messaging system of Starknet to get the best of both worlds.\n\nAgain, these are just some ideas to get you started but they are not at all prescriptive. You can apply to the bounty even if you don't use any of them as long as you use Starknet or Cairo in a meaningful way.\n\n🚀 **REQUIREMENTS**\n\n- For a project to qualify for the bounty it must have one or more Starknet smart contracts or use the Cairo programming language in any way.\n\n**⚖️ JUDGING CRITERIA**\n\n- **Originality:**\n - Is your project original or a copy of an existing one?\n- **Potential Impact:**\n - If made available on mainnet, how much of an impact it would have on the Starknet ecosystem and community?\n- **Functionality:**\n - Is your demo working?\n - How close to a polished product is it?\n\n**RESOURCES**\n\n- [Starknet Website](https://www.starknet.io/en): Central hub for all things Starknet.\n- [Starknet Ecosystem](https://www.starknet-ecosystem.com/): List of all the dapps and services available on Starknet.\n- [Starknet Docs](https://docs.starknet.io/documentation/): Official Starknet documentation maintained by StarkWare.\n- [Cairo Docs](https://docs.cairo-lang.org/): Official Cairo documentation maintained by StarkWare.\n- [The Cairo Book](https://book.cairo-lang.org/): Community driven book that does a deep dive into the Cairo syntax. Inspired by the Rust Book.\n- [Startknet Edu](https://medium.com/starknet-edu): Starknet tutorials and articles.\n- [Starklings](https://github.com/shramee/starklings-cairo1): Learn Cairo by solving coding challenges. Inspired by Rustlings.\n- [Node Guardians](https://nodeguardians.io/): Learn Cairo and Starknet by completing quests.\n- [Dojo](https://dojoengine.org/): Provable game engine and toolchain\n\n# COREUM - $10,000\n\n

\n\n\n**🚀 ABOUT COREUM**\n\n- Empower Your Business #BuildOnCoreum\n A Customizable Blockchain for the Tokenized Economy.\n\n**🚀 BOUNTY NAME**\n\nWe are seeking various implementations of cross-chain smart tokens.\n\n**🏆 BOUNTY PRIZE**\n\n🥇 Top prize, **$5,000**: cross chain smart token implementation (EVM-to-Cosmos)\n\n🥈 Middle prize, **$3,500**: multi chain bridges to coreum\n\n🥉 Low prize, **$1,500**: Smart Token usage in a Decentralized Application (not cross-chain).\n\n**🚀 CHALLENGE DESCRIPTION**\n\nThe challenges here are variations of smart token implementations across multiple chains. Preference is given to EVM to Coreum applications of Smart Tokens\n\n**🚀 JUDGING CRITERIA**\n\nRobustness, completeness, Difficulty\n\n**🚀 RESOURCES**\n\nPlease refer to our developer documentation:\n\nLinks:\n\n[https://coreum.com](https://coreum.com/)\n\n[https://docs.coreum.dev](https://docs.coreum.dev/)\n\n
\n\n\n# SECRET NETWORK/FHENIX - $6,000\n\n

\n\n**🏆 BOUNTY PRIZE AMOUNT**\n\n- Total prizes of $6,000 USD\n\nThe top 2 projects will be selected for winning prizes, with $2000 USD also available for best in category submissions (see below for categories).\n\n- 🥇**1st place - $3,000 USD**\n- 🥈**2nd place - $2,000 USD**\n- 🤝 **SCRT + Fhenix bonus prize - $1,000 USD**\n\n**🚀 ABOUT FHENIX**\n\n- Fhenix is revolutionizing the blockchain space by utilizing Fully Homomorphic Encryption for confidential smart contracts on public blockchains. One of the most pressing challenges in the blockchain space is ensuring privacy, and Fully Homomorphic Encryption (FHE) presents a promising solution. By leveraging FHE's ability to process encrypted data, we can effectively address privacy concerns, creating a safer environment for Web3 applications.\n\n**🚀 ABOUT SECRET NETWORK**\n\n- Secret Network offers scalable permissionless smart contracts with a private by default design— bringing novel use cases to blockchain not feasible on public systems. Secret Network is built with the Cosmos SDK bringing interoperable privacy to the entire Cosmos ecosystem. Secret Contracts are an implementation of the Rust-based smart contract compiling toolkit CosmWasm, adding private metadata possibilities.\n\n**💰CATEGORIES**\n\n**Privacy as a Service on Secret Network/Fhenix**\n\n- dApps or tooling built on Fhenix or Secret Network\n - Winners will be picked based on creativity, utility, and functionality.\n - **$1000 USD bonus prize for best project built using Fhenix AND Secret Network**\n\n**Submissions must contain/have:**\n\n- **Documentation:** Provide clear and concise documentation of your projects. This should include setup instructions, usage guidelines, and any additional information that helps judges and other developers understand the project.\n- **Demo or Video:** Create a demo or video showcasing your project's functionality. Videos are particularly helpful in conveying the project's value and can be easily shared and understood by judges and the public.\n- **Open Source:** Make their projects open source. This fosters collaboration, allows others to learn from your code, and contributes to the broader developer community.\n\n***Virtual Presentation - How to Participate in FHENIX and SECRET Hackathon***\n\n\n![youtube](https://www.youtube.com/watch?v=5kbwWN55QvU)\n\n\n\n**RESOURCES**\n\n- [Secret Network Getting Started Documentation (upload and instantiate on testnet)](https://docs.scrt.network/secret-network-documentation/development/getting-started/setting-up-your-environment)\n- [Secret Network Privacy Design Possibilities for Developers](https://docs.scrt.network/secret-network-documentation/development/secret-contract-fundamentals/privacy-as-a-service-paas)\n- [Secret Network Privacy as a Service Documentation (on chain randomness code example)](https://docs.scrt.network/secret-network-documentation/development/development-concepts/randomness-api/native-on-chain-randomness)\n- [Secret Network IBC Documentation](https://docs.scrt.network/secret-network-documentation/development/development-concepts/randomness-api/cross-chain-ibc-randomness)\n- [Fhenix Devnet Documentation](https://docs.fhenix.io/overview/fhenix-and-t-fhe)\n- [Axelar General Message Passing from Ethereum to Cosmos Documentation](https://docs.axelar.dev/dev/general-message-passing/cosmos-gmp)\n- [How to Deploy an EVM Smart Contract Using Alchemy](https://wiki.polygon.technology/docs/pos/deploy/alchemy/)\n- [BIDSHOP Private NFTs use case example (Secret Network + Polygon implementation)](https://scrt.network/blog/paas-showcase-bidshop)\n- [Secret Network Developer Discord Channel](https://discord.gg/KuqxZ9G9)\n- [Fhenix Developer Discord Channel](https://discord.gg/zEKhBjvQ)\n\n
\n\n# Foundance\n\n\n\n

\n\nIn collaboration with [Soonami](https://soonami.io/venturethon), we're searching for the next unicorns."},{"id":245,"name":"XDC Track","slug":"xdc-track","description":"# \n\n\n

\n\n\n\n# XDC is doing their own Track at ETHToronto!\nComplete for over $25,000 USD in XDC!\n\n### Don't know XDC? Now is your chance!\n\n# ABOUT XDC Network\n\nThe XDC Network is an enterprise grade, open-source, Layer 1 blockchain that provides high performance with EVM-compatibility. Using a delegated proof-of-stake consensus mechanism, the XDC Network has near-zero gas fees, 2 second block time, and is highly scalable. Its interoperability, scalability, low cost, and smart contract capabilities make it a platform of choice for anyone focused on building with blockchain technology. \n\n# ABOUT XDC Foundation\n\nXDC Foundation aims to accelerate the expansion and development of the XDC ecosystem with a focus on network adoption and utility. To align with this focus, hackers should submit projects that provide utility and value to users in a real-world setting. The following categories have been recommended, however, we understand you may have good ideas. Feel free to be creative and compete with your own ideas!\n\n# 🏆BOUNTY PRIZE AMOUNT\n\nThe top 3 best overall projects will be selected for winning prizes, with $5,000 also available for best in category submissions. Hackathon winners are also eligible to win best in category for competing in recommended categories! \n\n- 🥇1st $10,000 \n- 🥈2nd $6,000 \n- 🥉3rd $4,000 \n\n- 🧰 Web3 Developer/Community Tool - Best submission $1,000 \n\n- 🚛Supply Chain Management - Best submission $1,000 \n\n- 🖼NFTs - Best submission $1,000 \n💰Learn to Earn - Best submission $1,000 \n\n- 📱Tokenization - Best Submission $1,000\n\n# CATEGORIES\n\n**🧰 Build a Web 3 Developer or Community Tool** \n\n- Create and document a useful tool, dashboard, dev library, transaction explorer, DAO coordination tool, or web3 public good that will supercharge development and coordination for the XDC community!\n\n**🚛 Supply chain dApp** \n\n- Build a supply chain management solution for invoicing, supply chain management documents, traceability, product management or authentication, automated services, and other supply chain management services.\n\n**🖼NFTs** \n\n- Utilize NFTs to build token gated vaults, access control and permissions, loyalty programs, perks, tickets, soul bound tokens, or creative features for NFTs.\n\n**💰 Learn to earn** \n\n- Do you like teaching people how to build in Web3? If so, why not build an educational dApp focused on users that want to start developing on the XDC Network! Teach users how they can get started with deploying their first smart contract, building a dApp, coding with Solidity or Vyper, or how Web2 developers can bring their experience to Web3.\n\n**📱 Tokenization** \n\n- Build an application that leverages the benefits of tokenization using the XDC Network. Examples could be an app that makes spending, earning, or even sending easy. Tool or marketplace for RWA tokenization, suppliers, or other tangible and intangible assets. \n\n**JUDGING CRITERIA**\n\n- Applications that leverage tokenization for data, identity, fractional ownership, proof of ownership, fraud prevention, or other real world use cases are also welcome! \n- Prizes will be awarded for best in category however, all submissions will be considered. So feel free to come with YOUR OWN amazing ideas to XDC.\n- The submission must be original and demonstrate concepts which differentiate from existing solutions \n\n# GET STARTED\n\n- [XDC Network Official Docs](https://docs.xdc.community/)\n\n- [XDC Mainnet & Testnet Details](https://docs.xdc.community/get-details/networks)\n\n- [XDC Network Github Repository](https://github.com/XinFinOrg)\n\n- [XDC Community Developers' Discord](https://discord.com/invite/MFeHJ6C5gn)\n\n- [Developers’ Forum](https://www.xdc.dev/)"},{"id":246,"name":"Schedule","slug":"schedule","description":"# SCHEDULE \n\n### Hybrid: Online and/or In-Person\n\nThis event offers a hybrid experience, allowing participation both online and in person. You have the flexibility to choose how you want to engage, as there is no requirement to attend in person in order to participate and compete.\n\nFor the complete schedule, please visit https://ethtoronto.ca/schedule\n\nAll accepted participants of ETHToronto are granted complimentary access to the Blockchain Futurist Conference. This is the venue for the ETHToronto and ETHWomen Workshops, Mentorship sessions, and Mock judging. However, don't worry physical attendance is not mandatory to compete or be eligible for winning. Even if you choose not to attend in person, you can still participate remotely and have an equal opportunity to compete and win!"},{"id":247,"name":"In-Person","slug":"in-person","description":"# \n\n

\n\n# In-Person @ Canada's Largest Web3 Event\n\n### Blockchain Futurist Conference\n\n# 👩‍💻 HYBRID HACKTHON\n\nWe're excited to have you in-person at ETHToronto Hackathon 2023 hosted at Blockchain Futurist Conference! \n\nThe attendance is optional as the hackathon is hybrid with both online and an in-person experience.... but the onsite experience is magical!\"\n\n# ARRIVING TO ETHTORONTO\n\nETHToronto is located at Rebel Entertainment Complex and Cabana, 11 Polson Street. Toronto, ON Canada M5A 1A4\n\nAll accepted in-person hackers should have received an email from Eventbrite with your ticket QR Code. \nPlease bring this to the ETHToronto Registration desk with your I.D. on August 15th starting at 8:00am \n\n[Visit this page](https://futuristconference.com/travel) to plan your local trip.\n\n\n# WHAT TO EXPECT ON-SITE\n\n- Workshops & Sessions\n- Bounty Workshops from Sponsors\n- Panels both technical and non-technical\n- Mock Judging\n- Mentorship Sessions\n- Access to Futurist Main Stage\n- Expo Booths\n- Crypto Marketplace\n- NFT Galleries\n- Networking Events\n- A festival-like experience as part of Blockchain Futurist Conference\n- and sooo much more!!\n\n# 🗓 KEY EVENTS\n\n\n\n![mentorship and career session ETHToronto ETHWomen-min.png](https://cdn.dorahacks.io/static/files/189987efbb18b3e92f984e04f87bd75e.png)\n\n***[Registration begins at 10:15 am](https://ethtoronto.ca/schedule)***\n\n\n\n\n[![Stratos Developer Event-min.png](https://cdn.dorahacks.io/static/files/189987c04b1e60b99f0b3cf49dea510d.png)](https://www.eventbrite.ca/e/stratos-builder-house-blockchain-futurist-canada-ethtoronto-tickets-686630419067?aff=oddtdtcreator)\n\n***[Register here to attend](https://www.eventbrite.ca/e/stratos-builder-house-blockchain-futurist-canada-ethtoronto-tickets-686630419067?aff=oddtdtcreator)***\n\n\n\n\n\n[![informal-systems-event-banner-.png](https://cdn.dorahacks.io/static/files/189989898d156723e67256b4b93a1ff5.png)](https://www.meetup.com/toronto-cosmos-meetup-group/events/294764620/)\n\n***[Register here to attend](https://www.meetup.com/toronto-cosmos-meetup-group/events/294764620/)***\n\n\n\n[![ICP.Hub.jpg](https://cdn.dorahacks.io/static/files/189b6d2ee81d5a0f8ee7d0b44c084703.jpg)](https://lu.ma/3q0l6w1g)\n\n***[Register here to attend](https://lu.ma/3q0l6w1g)***"},{"id":257,"name":"FAQs","slug":"faqs","description":"# GENERAL\n\n**HACKATHON DEADLINE EXTENDED***\n\n- Due to high requests for deadline extension, submissions are being accepted for ETHToronto till Thursday, August 24th at 11:59 PM EST. \n- Judging will begin thereafter\n\n\n**What's the difference between the online and in-person hackathon?**\n\nETHToronto is a hybrid event - the active hackathon is **online** on DoraHacks and Discord. The on-site event is to meet with bounty sponsors, mentors plus attend workshops & events.\n\nA HACKER Ticket gives access to the in-person event on August 15-16, 2023 at Rebel Entertainment Complex, 11 Polson Street, Toronto, Canada. \nFor the full schedule, visit [this link](https://ethtoronto.ca/schedule).\n\nYou must register as Hacker on our ETHToronto DoraHacks page, select bounty (or as many bounties) and submit your project here before August 23, 2023 at 11:59 AM EST\n\n
\n\n**What is a hackathon?**\n\nA hackathon is also known as a coding sprint or marathon, derived from the words 'hack' and 'marathon' to build an idea or solve a problem within a limited timeframe and participants compete to present their projects for prizes or awards.\n\n
\n\n**What is ETHToronto Hackathon?**\n\nETHToronto is the official hackathon of Blockchain Futurist Conference, which brings together the technical community to build the future by developing the next innovation in blockchain technology, hosted at the birthplace of Ethereum, Toronto, Canada.\n\n
\n\n**What are the prizes for ETHToronto Hackathon?**\n\nOver $40,000 in prizes are up for grabs at ETHToronto Hackathon 2023. Keep checking back to learn about the newest prizes.The first crypto hackathon Untraceable organized in 2014 we gave away 35 BTC to the top prize winner! I hope they HODL'd! \n\n
\n\n**What is a Bounty or Bounties?**\n\nBounties are blockchain-based prizes that are rewarded for solving problems in an open-source and decentralized environment \n\n
\n\n**Who can participate at ETHToronto Hackathon?**\t\n\nETHToronto is a community event and free to all participants. We are always accepting developers from beginner to expert levels. Blockchain developers and anyone with some programming languages skills are encouraged to participate at ETHToronto Hackathon.\n\n
\n\n**Where is ETHToronto Hackathon taking place?**\n\nETHToronto is a hybrid event taking place online and in-person at Blockchain Futurist Conference. Participants can choose to only participate in the online portion anywhere in the world and connect with members on ETHToronto Discord channel. \n\n
\n\n**When is ETHToronto Hackathon?**\n\nETHToronto Schedule is as follows: \n\n- July 14 - Online Hackathon Starts\n- August 15-16 - In-Person Workshops at Futurist Conference (Optional)\n- August 23 - Online Submission Due & Judging Concludes\n\n
\n\n**Do I have to participate for the in-person event?**\t\n\nNo. You can participate fully online without attending the in-person event. Register as Hacker on this website, join the official ETHToronto [Discord](https://discord.gg/fGDhpQrQvC) server and look out for the virtual stream during Blockchain Futurist Conference.\n\n
\n\n**Can I participate in both ETHToronto and ETHWomen?**\t\n\nETHToronto Hackathon participants who identify as women+ are able to opt in to participate at ETHWomen Hackathon by submitting a buidl to an ETHWomen Bounty.\n\n# HACKATHON\n\n**How many people can be on a team?**\t\n\nYou can have up to six (6) people on a team. You can look for new team members on the ETHWomen [Discord #team-formation](https://discord.gg/fGDhpQrQvC) channel online or for in-person participants, a Team Formation session is scheduled on August 15, 2023 on-site.\n\n
\n\n**Can a project be submitted by a team of 1 person?**\t\n\nEach team must have at least two (2) team members to qualify and present the project to the judging team.\n\n
\n\n**Do I have to participate in a bounty or can I build my own project?**\t\n\nYou can bring your existing buidl, start a new one or participate in a Bounty track to work or specific protocols \n\n
\n\n**Can I participate in more than one Bounty?**\t\n\nYou can submit your buidl (project) in as many bounties as you like. Qualified submissions are based on the criteria of each bounty which can be found on this page.\n\n
\n\n**What is the judging process for selecting winner projects?**\t\n\nThe judging criterias are unique for the overall ETHWomen Hackathon track or the specific Bounties offering prizes based on their requirements. Check out the Bounties page and check back for updates here on DoraHacks.\n\n
\n\n**What support resources are available during the Hackathon?**\n\nFor online: We're partnered with CryptoChicks Academy offering free access to blockchain, business and crypto courses for participants. There are also links available to guides and tutorials provided on the Bounties page.\n\nFor in-person (optional): On August 15 - 16, 2023, there are workshops, mentorship sessions, team formation, mock judging and more!! Bring your questions or if you want to reach someone for assistance, drop a message on the Discord server for additional support."},{"id":280,"name":"Submission Guide","slug":"submission-guide","description":"![youtube](https://www.youtube.com/watch?v=4ogbFvbTDWo)\n\n# Getting Started [3-5 MIN]\n\n\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
\n\nUse the **Sign in/up button** at the upper right corner of the page to access the sign-up options.\n\n![steo1.png](https://cdn.dorahacks.io/static/files/187b688d041d9e93db6f3bb449aa74b2.png)\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\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\n**2. Before the submission deadline(12:00pm UTC, August 23), please make sure you have added your Github link to the project. You can submit the project first, edit it later before the DDL.**\n
\n\nClick “Submit BUIDL”.\n\n\n\n![ETHToronto DoraHacks Banner 2023.jpg](https://cdn.dorahacks.io/static/files/189ac8e626522be0b8379db420d87c8c.jpg)\n\n\n> → **If you already have created a BUIDL on DoraHacks**\n
\n\nChoose your BUIDL project and submit.\n\n> → **If you want to submit a new BUIDL project**\n
\n\nClick **“Create a new BUIDL”** and fill in the form as required. You'll be directed to \"ETHToronto Virtual & In-Person Hackathon\" page after the new BUIDL setup.\n
\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![ste4.jpg](https://cdn.dorahacks.io/static/files/187b69102d409a685aa6be74b89b78ca.jpg)\n\nDon't forget to check \"I agree to the User Agreement\".\n\n\n![ste5.png](https://cdn.dorahacks.io/static/files/18a0c4152b2b57d55b94bb9445685ce9.png)\n\nBack to Application window. Choose your BUIDL project from **\"Apply with Existing BUIDL\"**.\n\nWhen submission succeeds, you'll see this notification.\n\n\n![ste6.png](https://cdn.dorahacks.io/static/files/187b691d0297615b203ec5e4847a17ef.png)\n\n# Want to make some changes to your BUIDL?\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![o.png](https://cdn.dorahacks.io/static/files/187b6f2bb7da1b572cf45aa49d0ba5ae.png)\n\n![steo.png](https://cdn.dorahacks.io/static/files/187b6efeb7ebb25227f43684f7ba3dba.png)"},{"id":347,"name":"Results","slug":"results","description":"# ETHToronto & ETHWomen Hackathon Recap and Result Announcement\n\nWe would like to express our gratitude to ETHToronto, ETHWomen, bounty sponsors, judges, and hackers for contributing to the success of this event!\n\nDoraHacks was thrilled to co-host a Web3 hackathon in Toronto, Canada, the birthplace of Ethereum. Over 35 days of Virtual & In-Person hacking, we had the pleasure of interacting with many brilliant young hackers on site. It was a truly rewarding experience to support them as they tackled and solved complex blockchain problems, often presenting innovative solutions.\n\nAfter careful review by the judges, we are pleased to announce the winners of each bounty below.\n\nAll [ETHToronto](https://twitter.com/hashtag/ETHToronto?src=hashtag_click) Submissions [Here](https://dorahacks.io/hackathon/ethtoronto2023) [](https://t.co/viqeOLwGcM)\n\nAll [ETHWomen](https://twitter.com/hashtag/ETHWomen?src=hashtag_click) Submissions [Here](https://dorahacks.io/hackathon/ethwomen/buidl) [](https://t.co/twoMsKrqJL)\n\n# THE WINNING XDC NETWORK BUILDS:\n\n

\n\n🥇1st Place: **[Emissary - Treasury & Payout System](https://dorahacks.io/buidl/6971)**\n\nEmissary is a comprehensive payout solution designed for the XDC network. This platform is specifically tailored for DAO organizations, Web 3.0 companies, and individual projects, offering seamless payout management in the XDC ecosystem\n\n🥈2nd Place: **[Rep 3](https://dorahacks.io/buidl/7070)**\n\nA reputation system for EVM addresses\n\n🥉3rd Place: **[Chicken Nuggets](https://dorahacks.io/buidl/7150)**\n\nA decentralized escrow system that allows for trustless transactions of products while reducing administrative costs.\n\n**Special Category Winners:**\n\n🏅 ***Xscript***\n\n🏅 **[Snapvox](https://dorahacks.io/buidl/7158)**\n\nSnapvox is a decentralized governance platform that makes it easy to create and vote on proposals!\n\n🏅 **[Wallet Hopper](https://dorahacks.io/buidl/7145)**\n\nHelping early adopters receive assets on their chain of choice\n\n# CHECK OUT THE WINNING SHIB BUILDS:\n\n

\n\n🏅 **[Shibarium Village - Metaverse on Shibarium Testnet](https://dorahacks.io/buidl/7178)**\n\nShibarium Village - Metaverse on Shibarium Testnet (Puppynet)\n\n🏅 **[MMA Movies & Music Awards](https://dorahacks.io/buidl/7207)**\n\nDecentralized Social Network for Movies and Music Awards\n\n# THE WINNING AXELAR BUILDS:\n\n

\n\n🥇1st Place: **[CredPaymaster](https://dorahacks.io/buidl/7137)**\n\nCredPaymaster is a credential-based account abstraction paymaster system designed to provide a flexible way to manage paymasters using credentials. Built atop the Ethereum Attestation Service for credential registry, it capitalizes on the power of decentralized solutions to enhance the chain's ecosystem.\n\n🥈2nd Place: **[Hotpot Protocol](https://dorahacks.io/buidl/7142)**\n\nA verifiably fair on-chain NFT lottery system\n\n🥉3rd Place: **[Partytricks](https://dorahacks.io/buidl/7148)**\n\nSocially bond with other DAO members with partially on-chain games\n\n# THE WINNING METIS DAO BUILD:\n\n

\n\n🏅 **[Visible Impact](https://dorahacks.io/buidl/7175)**\n\nThe Next EcoNode; Making impact journeys transparent and verifiable\n\n# THE WINNING ZKSYNC BUILDS:\n\n

\n\n🏅 **[Email Subscription Paymaster on ZKSync Era](https://dorahacks.io/buidl/7197)**\n\nEncourage Email Subscription by Sponsoring Gas Fees when Email is in Subscription\n\n🏅 **[Notus Wallet](https://dorahacks.io/buidl/7153)**\n\nYour Self-Custodial, Gasless Gateway to DeFi. Simplifying Web3, One Vault at a Time. Built on zkSync.\n\n🏅 **[ZkAuctiSphere](https://dorahacks.io/buidl/7138)**\n\nZkAuctiSphere is an innovative auction platform that leverages account abstraction and zkSync technology to offer users the power of web3 and the simplicity of web2 user experience.\n\n# THE WINNING EAS BUILDS:\n\n

\n\n🥇1st Place: **[Rep3](https://dorahacks.io/buidl/7070)**\n\nA reputation system for EVM addresses\n\n🥈2nd Place: **[Ethereum Connect](https://dorahacks.io/buidl/7168)**\n\nReal-time messaging between ethereum accounts using EAS on BASE\n\n🥉3rd Place: **[Verifin](https://dorahacks.io/buidl/6822)**\n\nCreate and validate publicly verifiable proof of digital asset ownership, bridging wallet address to legal identity\n\n🏅4th Place: **[CredPaymaster](https://dorahacks.io/buidl/7137)**\n\nCredPaymaster is a credential-based account abstraction paymaster system designed to provide a flexible way to manage paymasters using credentials. Built atop the Ethereum Attestation Service for credential registry, it capitalizes on the power of decentralized solutions to enhance the chain's ecosystem.\n\n# THE WINNING ALEO BUILDS:\n\n

\n\n🥇1st Place: **[Arcane Finance](https://dorahacks.io/buidl/7114)**\n\nA privacy-centric Request-For-Quote DEX on Aleo\n\n# THE WINNING BASE BUILDS:\n\n

\n\n🏅 **[Attested Credentials](https://dorahacks.io/buidl/7174)**\n\nA set of tools to simplify issuing and verifying certain types of credentials using the Ethereum Attestation Service.\n\n🏅 **[BasePay](https://dorahacks.io/buidl/7091)**\n\nA P2P transaction dApp built on top of Goerli Base Chain\n\n🏅 **[CredPaymaster](https://dorahacks.io/buidl/7137)**\n\nCredPaymaster is a credential-based account abstraction paymaster system designed to provide a flexible way to manage paymasters using credentials. Built atop the Ethereum Attestation Service for credential registry, it capitalizes on the power of decentralized solutions to enhance the chain's ecosystem.\n\n🏅 **[Farmshare](https://dorahacks.io/buidl/6900)**\n\nDecentralized Community-Supported Agriculture\n\n🏅 **[PrivaSeal](https://dorahacks.io/buidl/7190)**\n\nContracts Legal Attestation Protocol\n\n# THE WINNING STARKWARE BUILDS:\n\n

\n\n🥇1st Place: **[Cairo-Logistic Regression](https://dorahacks.io/buidl/7082)**\n\nVerifiable Logistic Regression\n\n🥈2nd Place: **[Layered Lifegame](https://dorahacks.io/buidl/7191)**\n\nBuild a semi-permanent life game.\n\n🥉3rd Place: **[Cross Chain GEMs](https://dorahacks.io/buidl/7165)**\n\nGamefi dApp that demonstrate the power of Axelar infrastructure\n\n# THE WINNING COREUM BUILD:\n\n

\n\n🏅 **[CoreumGallery](https://dorahacks.io/buidl/7161)**\n\nALL-IN-ONE dApp for Coreum NFTs: Dashboard, Administation panel & 3D Web Gallery\n\n# THE WINNING SECRET NETWORK BUILDS:\n\n

\n\n🥇1st Place: ***fhEVM Battleship***\n\n# THE WINNING AVALANCHE BUILDS:\n\n

\n\n🥇1st Place: **[Galen AI](https://dorahacks.io/buidl/7090)**\n\nGalen AI, a pioneering AI prompt marketplace on Avalanche\n\n🥈2nd Place: **[Awesome Tools](https://dorahacks.io/buidl/7164)**\n\nA few tools created using power of OpenZeppelin Defender\n\n🥉3rd Place: **[Partytricks](https://dorahacks.io/buidl/7148)**\n\nSocially bond with other DAO members with partially on-chain games\n\n# THE WINNING OPEN ZEPPELIN BUILDS:\n\n

\n\n🥇1st Place: **[Partytricks](https://dorahacks.io/buidl/7148)**\n\nSocially bond with other DAO members with partially on-chain games\n\n🥈2nd Place: **[Gencoin](https://dorahacks.io/buidl/7078)**\n\nProof-of-Humanity NFT Minter to combat bot interference. GENCOIN is making the world a smaller place, one transaction at a time.\n\n🥉3rd Place: **[Awesome Tools: Powered by Open Zeppelin Defender](https://dorahacks.io/buidl/7164)**\n\nA few tools created using power of OpenZeppelin Defender\n\n# THE WINNING CRYPTOCHICKS BUILDS:\n\n

\n\n🏅 **[SheNodes](https://dorahacks.io/buidl/6840)**\n\nEmpowering Women in Web3 and Beyond\n\n🏅 **[AI Marketing 10](https://dorahacks.io/buidl/7023)**\n\nShaping Tech and Innovation with AI Marketing\n\n🏅 **[Crypto Investigation](https://dorahacks.io/buidl/7188)**\n\nCrypto Investigation Course for Crypto Chicks"}],"skills":null,"applied":false,"isCurrentHackerRegistered":false,"buidlsCount":121,"applicationsCount":123,"organization":{"id":356,"name":"ETHToronto & ETHWomen","logo":"https://cdn.dorahacks.io/static/files/1880db4007ed3e0afb3378f4bd4b4513.png"},"description":"![youtube](https://www.youtube.com/watch?v=PwWwwDm7mAc)\n\n\n\n🚀🚀🚀 **APPLY AT [ETHTORONTO.CA](http://ethtoronto.ca)** 🚀🚀🚀\n\nWelcome to the 2nd Annual ETHToronto is an event you don't want to miss! Last year Vitalik Buterin was our keynote speaker. This year we have a ton of exciting surprised for our hackathon participants! \n\n**➡️ ONLINE & IN-PERSON**\n- Open to everyone, even if you can't attend in person\n- Receive FREE Tickets to Canada's Largest Web3 Conference\n[Blockchain Futurist Conference ](http://www.futuristconference.com)\n- Apply Now at [ETHToronto.ca](https://ethtoronto.ca)\n\n**➡️ SCHEDULE AT A GLANCE**\n- July 14, 2023: Online Hackathon Begins\n- August 15-16 2023: In-Person at Blockchain Futurist Conference in Toronto, Canada\n- August 23, 2023: Online Submissions Due\n\n**➡️ WHO CAN PARTICIPATE?**\n- Anyone! Even if you can't make it in-person you can still participate in all the same bounties online! \n\n**➡️ DIFFERENCE BETWEEN ONLINE & IN-PERSON**\n- Online: Submissions, Resources, Judging, Bounty Distribution\n- In-Person: Workshops, Mentorship, Meet with Sponsors, More\n\n**➡️ HOW DO I PARTICIPATE?**\n- It's simple: Apply at [ETHToronto.ca](https://ethtoronto.ca) 🚀\n\n**➡️ WHAT IS BLOCKCHAIN FUTURIST CONFERENCE?**\n- We are Canada's Largest Blockchain event with over 6500 attendees in a Mega Entertainment Complex! If you apply to ETHToronto you receive free tickets!","onboardingCompleted":false,"registerFormUrl":null,"preRegisterTime":0,"publicContactHackerHandle":null,"hackersCount":410,"winnerAnnounced":false,"teamCount":0,"title":"ETHToronto Virtual & In-Person Hackathon","uname":"ethtoronto2023","imageUrl":"https://cdn.dorahacks.io/static/files/189a1bc696441557c6bab9349b597b5c.jpg","originUrl":null,"startTime":1688918400,"endTime":1692935940,"timezone":"240","city":null,"visible":true,"approvalStatus":6,"state":0,"voteUrl":null,"voteMechanism":null,"bonusPrice":100000,"bonusMechanism":null,"followersCount":0,"ecosystem":"ethereum,bitcoin,cardano,xdc","applyGuide":null,"weight":0,"participationForm":"Virtual","field":"Blockchain,web3,hackathon,ethereum,virtual,hybrid,in-person","email":"events@untraceableinc.com","contacts":"Others,team@ethtoronto.ca","externalContacts":null,"telegram":null,"discord":null,"whatsapp":null,"wechat":null,"prizeFundingEscrowed":1,"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,"isMultiTracksAllowed":false,"tracksLimitForBuidl":0,"showIdeaTab":true,"showQuestionTab":true,"showTeamTab":false,"bonusDescription":[],"askHackers":[],"isEnabledQuestions":false,"isEnabledAskHackers":false,"isBuidlsPrivate":false,"trackJudgingMaxScore":100,"bountyJudgingMaxScore":100,"isExtended":false,"oldEndTime":null,"status":2},"status":4,"bounty":null,"track":null,"table":"0","trackObj":null,"bountyObjs":[{"id":331,"name":"XDC.NETWORK - $25,000","token":"USD","bonus":25000,"link":"https://dorahacks.io/hackathon/ethtoronto2023/bounties#1","description":"https://dorahacks.io/hackathon/ethtoronto2023/bounties#1"}]},{"id":7479,"hackathon":{"id":157,"tabSet":[{"id":263,"name":"Rewards Distribution","slug":"rewards-distribution","description":"# Rewards Distribution\n\n![713.jpg](https://cdn.dorahacks.io/static/files/1894e1a7cde89e0afc66c014d3a82f00.jpg)\n\n![432.jpg](https://cdn.dorahacks.io/static/files/1894e1b19010c1a404fd6bc4d428c701.jpg)\n\n
\n\nTo find our more about the review and scoring criteria, check out Hackvolution’s [main page](https://bnbchain.org/en/hackvolution). Please note that projects can only be rewarded in a single reward category."},{"id":264,"name":"Key Date","slug":"key-date","description":"# 📣 Important Update: BNBChain Hackvolution Winner Announcement Delayed \n\nWe're thrilled to share that the response to the #Hackvolution hackathon has been overwhelming! 🙌\n\nWith an unprecedented number of innovative dapp submissions, our judges need more time to carefully evaluate each project to ensure a fair and thorough review. 🧐\n\nWe understand your excitement and patience, and we want to deliver a well-deserved result. 🏆\n\nThe new winner announcement date will be **27 Sep**. We apologize for any inconvenience caused and thank you for your understanding.\n\nThank you for being a part of the #BNBChainHackvolution journey. Your support fuels our passion for innovation. 🚀\n\n# Key Date\n\n- Registration Period: July 13 - August 22\n\n- Greenfield Code Demo: July 21 and 25\n\n- opBNB Code Demo: July 24\n\n- Online Workshops: July 28, 31, August 1, and 2\n\n- Submission Period: August 2 - September 5\n\n- Local Offline Meetups: Dates will be announced on BNB Chain’s social media channels\n\n- Reviewing Period: September 6 - September 12\n\n- Winner Announcement: September 27\n\n- Demo Day: TBD"},{"id":265,"name":"How to Get Involved","slug":"get-involved","description":"# How to Get Involved\n\n![875.jpg](https://cdn.dorahacks.io/static/files/18a0776cf2066a7ca7c51f742958318a.jpeg)\n\nParticipating in BNB Chain Hackvolution is simple. [Register](https://forms.monday.com/forms/249adfbe24f2538e3561bf36ccdec545?r=use1) for the hackathon, mark your calendar for the event period, and prepare to unleash your creativity and technical prowess. Stay tuned for the pre-briefing session, where we will share the hackathon's scope and details. Throughout the event, there will be physical meet-ups at various locations to foster networking and collaboration.\n\nThis is more than just a hackathon; this event paths future opportunities for potential grants and [MVB track under Binance Labs’ incubation](https://www.binance.com/en/blog/ecosystem/open-applications-for-season-6-incubation--program--binance-labs-paris-meetup-event-5257718754087972873). Join us at BNB Chain Hackvolution and let your ideas, skills, and passion ignite while leveraging the potential of opBNB and BNB Greenfield to create meaningful dApps.\n\n[Register](https://forms.monday.com/forms/249adfbe24f2538e3561bf36ccdec545?r=use1) now and get ready to embark on a remarkable journey of innovation, collaboration, and empowerment. Together, let's shape the future of dApps with opBNB and BNB Greenfield!\n\n### **[Register to join the BNB Chain Hackvolution.](https://forms.monday.com/forms/249adfbe24f2538e3561bf36ccdec545?r=use1)**\n\n*BNB Chain eserves the right in its sole discretion to amend or cancel this announcement at any time and for any reasons without prior notice."},{"id":277,"name":"Dapp Submission","slug":"dapp-submission","description":"# · To submit form to take part 👉 [Dapp submission form](https://forms.monday.com/forms/d2c766b92e34c364ddd79014c2854c2c?r=use1)\n\n# 💡️️️️️️Dapp Scoring Criteria💡️️️️️️\n\n**1.** Design and usability (Is the project designed well in terms of UX/UI?)\n\n**2.** Scalability (Does the project have the potential to reach 100K users?)\n\n**3.** Open source (Has the code been open-sourced in full/partially?)\n\n**4.** Innovative (What unique functionalities does your project offer?)\n\n**5.** BNB Chain, opBNB, BNB Greenfield( How well it integrates with BNB Chain?)\n\n# 🔥️️️️️️Must fulfill\n\n**1.** Dapps must be based on either one of the two technical solutions: opBNB or Greenfield.\n\n**2.** The project should be deployed on BNB Chain, and made functional and accessible on BNB Smart Chain (BSC), opBNB and BNB Greenfield Testnet, for testing and evaluation.\n\n**3.** Fall into one of the Infra, DeFi, Gaming and AI categories."},{"id":278,"name":"Workshop Schedule","slug":"workshop","description":"# Workshop Schedule\n\n![2343.jpeg](https://cdn.dorahacks.io/static/files/1899311289fc9684227a11345399cd67.jpeg)\n\n\n
\n\n

Date	Time (UTC)	Topics	Speaker Name	Title	Channel
7/28/2023	13:00- 13:10	Opening Ceremony	Anro	Sr Solution Architect, BNB Chain	BNB Chain Youtube Twitter Binance Live
13:10- 13:45	OpBNB & Greenfield: From Wishlist to Reality - Hackathon Bounty Unveiled!	Anro	Sr Solution Architect, BNB Chain
13:45- 15:00	Build a Data Marketplace on BNB Greenfield	Victor	Sr Solution Architect, BNB Chain
7/31/2023	13:00-13:30	Exploring the Emerging Opportunities and Challenges of Web3 Metaverse	Alan	Head of Ecosystem Development, Secondlive	BNB Chain Youtube Twitter Binance Live
13:30-14:00	Embark on an Epic Journey: Unleashing the Power of the AI, Web3 Game, and Metaverse!	Jimmy	Co-Founder, Ultiverse
14:00-15:00	What opBNB Brings to BNB Chain and Layer 2 Ecosystem	Rumeel\t	Sr Solution Architect, BNB Chain
Michael Zhou	Core Developer, Celer Network
Thibaut	Ecosystem lead, Blockvision
8/1/2023	13:00-13:30	Navigating the Web3 Frontier: Exploring the Future of Blockchain Gaming through Trends, Challenges, and Opportunities	Luna	Head of Growth, COMBO	BNB Chain Youtube Twitter Binance Live
13:30-14:00	Redefining Infrastructure, Building Bridges: Paving the Way for Web3 Massive Adoption	Jess L	CMO, Hooked
14:00-14:30	Use Account Abstraction to Next-gen dApps on opBNB	Ryan Li	Co-Founder, Cyberconnect
14:30-15:00	Defi next - How to Achieve Sustiable DeFi	Marwan	Business Development , BNB Chain
Bob Baxley	Core Contributor, Maverick Protocol
Daniel Anthony	Lead for Growth, Pendle
8/2/2023	13:00- 13:30	Lessons from the Battlefield	Connie Lam	Solution Architect, Certik	BNB Chain Youtube Twitter Binance Live
13:30 - 14:30	Opportunities in AI and Web3 Infrastructure	Michael Tong	CEO, Xterio
Abner Jia	co-founder and CEO of Polyhedra Network
Weimin Li	Sr. Startup Advocate, AWS
14:30 - 16:30	BNB Chain's Journey: H1 Recap & H2 Mainnet Launch Spotlights	Anro	Sr Solution Architect, BNB Chain

\n\n# BNB Chain Hackvolution Workshop Day 1\n\n![youtube](https://www.youtube.com/watch?v=hMwkhcAl6uk)\n\n- 13:00- 13:10 Opening Ceremony\n\n- 13:10- 13:45 OpBNB & Greenfield: From Wishlist to Reality - Hackathon Bounty Unveiled!\n\n- 13:45- 15:00 Build a Data Marketplace on BNB Greenfield\n\n# BNB Chain Hackvolution Workshop Day 2\n\n![youtube](https://www.youtube.com/watch?v=ovVVB0yKKi8)\n\n- 13:00-13:30 Exploring the Emerging Opportunities and Challenges of Web3 Metaverse\n\n- 13:30-14:00 Embark on an Epic Journey: Unleashing the Power of the AI, Web3 Game, and Metaverse!\n\n- 14:00-15:00 What opBNB Brings to BNB Chain and Layer 2 Ecosystem\n\n# BNB Chain Hackvolution Workshop Day 3\n\n![youtube](https://www.youtube.com/watch?v=8PrWfYHUVfw)\n\n- 13:00-13:30 Navigating the Web3 Frontier: Exploring the Future of Blockchain Gaming through Trends, Challenges, and Opportunities\n\n- 13:30-14:00 Redefining Infrastructure, Building Bridges: Paving the Way for Web3 Massive Adoption\n\n- 14:00-14:30 Use Account Abstraction to Next-gen dApps on opBNB\n\n- 14:30-15:00 Defi next - How to Achieve Sustiable DeFi\n\n# BNB Chain Hackvolution Workshop Day 4\n\n![youtube](https://www.youtube.com/watch?v=W23jhCoa3ms)\n\n- 13:00- 13:30 Lessons from the Battlefield\n\n- 13:30 - 14:30 Opportunities in AI and Web3 Infrastructure\n\n- 14:30 - 16:30 BNB Chain's Journey: H1 Recap & H2 Mainnet Launch Spotlights\n\n# Speaker\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189962e33c929f46ef208d44179ab044.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189962e6f7db03078d658844d958dc8e.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189962ec204267705e073bb4bc5b49fd.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189962f13144fe43fe6bfb64636a3a27.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189962f6be9592ef104992340d18dfcb.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/18996301fd225967801bd5f4ad2907a9.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/18996307051b118dc7304bb4de08b761.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/1899630d26a30360a0a2551433cbd011.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189963136457ea76f25dfdb45ef93410.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/18996319daf1d3127dc30f9411789ad3.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/189963265b4937a3383de7749f39e01b.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/1899632b7ec401baa50fadc4695839c5.jpg)\n\n![234.jpg](https://cdn.dorahacks.io/static/files/1899632fdf15ace5233269b4a72b8670.jpg)"},{"id":305,"name":"Register Guide","slug":"register","description":"# Getting Started [3-5 MIN]\n**1. You should submit your BUIDL via [DoraHacks.io](https://dorahacks.io/). Before that, make sure that you already have an account.**\n
\n\nUse the **Sign in/up button** at the upper right corner of the page to access the sign-up options.\n\n![steo1.png](https://cdn.dorahacks.io/static/files/187b688d041d9e93db6f3bb449aa74b2.png)\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\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\n**2. Before the submission deadline(16:00 UTC, September 5), please make sure you have added your Github link to the project. You can submit the project first, edit it later before the DDL.**\n
\n\nClick “Submit BUIDL”.\n\n![ste2.jpg](https://cdn.dorahacks.io/static/files/18991a873c9c280407311e547bcb4d59.jpg)\n\n> → **If you already have created a BUIDL on DoraHacks**\n
\n\nChoose your BUIDL project and submit.\n\n> → **If you want to submit a new BUIDL project**\n
\n\nClick **“Create a new BUIDL”** and fill in the form as required. You'll be directed to \"Apply for BNB Chain Hackvolution\" page after the new BUIDL setup.\n
\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![ste4.jpg](https://cdn.dorahacks.io/static/files/187b69102d409a685aa6be74b89b78ca.jpg)\n\nDon't forget to check \"I agree to the User Agreement\".\n\n\n![ste5.png](https://cdn.dorahacks.io/static/files/18a0c4152b2b57d55b94bb9445685ce9.png)\n\nBack to Application window. Choose your BUIDL project from **\"Apply with Existing BUIDL\"**.\n\nWhen submission succeeds, you'll see this notification.\n\n\n![ste6.png](https://cdn.dorahacks.io/static/files/187b691d0297615b203ec5e4847a17ef.png)\n\n# Want to make some changes to your BUIDL?\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![o.png](https://cdn.dorahacks.io/static/files/187b6f2bb7da1b572cf45aa49d0ba5ae.png)\n\n![steo.png](https://cdn.dorahacks.io/static/files/187b6efeb7ebb25227f43684f7ba3dba.png)"},{"id":333,"name":"Judges","slug":"judges","description":"![khf.jpg](https://cdn.dorahacks.io/static/files/18a4618feac5c88205d515d48dc8b12b.jpg)"},{"id":384,"name":"Results","slug":"results","description":"# BNB Chain Hackvolution Hackathon Winners Update\n\nThe list of winners for the BNB Chain Hackvolution Hackathon has been announced! The event not only showcased the exceptional talent within the community but also provided an opportunity to acknowledge the remarkable achievements of all participants. Let's take a look at the outstanding winners!\n\nhttps://www.bnbchain.org/en/blog/bnb-chain-hackvolution-winners/\n\n# 🌐 Infra Track\n\n**1st Place**: ***CodexField***\n\n**2nd Place**: ***RIDO Protocol***\n\n**3rd Place: [GreenGate](https://dorahacks.io/buidl/7288)**\n\nGreenGate is a data migration service designed primarily to transition data to the BNB Greenfield storage system. Our first tool facilitates the migration of NFT data from IPFS to Greenfield.\n\n# 🤖 AI Track Winners\n\n**1st Place: [Op-Intents](https://dorahacks.io/buidl/7320)**\n\nIntent based architecture with account abstraction\n\n**2nd Place: [StoryChain](https://dorahacks.io/buidl/7231)**\n\nStoryChain is a multi-level AI based story telling NFT dapp where users collaboratively create stories that have unique chapters and arts using Language AI, Image AI and NFTs.\n\n# 🕹️ Gaming and DeFi Tracks:\n\nNo winners, but we've recognized potential in these categories too!\n\n# 🌟 Projects with Potential Award:\n\n**[BNS6551](https://dorahacks.io/buidl/7324)**\n\nERC-6551 and Harberger Tax: A New Approach to Blockchain Domains.\n\n**[Datumendo](https://dorahacks.io/buidl/7287)**\n\nMigragte data from IPFS and Arweave to BNB Greenfield\n\n***Greenfield Mobile***\n\n***Metagent***\n\n**[Munhna](https://dorahacks.io/buidl/7308)**\n\nExplore the newly envisioned potential of token issuance within the OPBNB ecosystem\n\n**[opSyndicate](https://dorahacks.io/buidl/7051)**\n\nopSyndicate is an Investment Club platform to manage funds (treasury) in opBNB Network.\n\n***School For AI***\n\n**[Smart Agree](https://dorahacks.io/buidl/7311)**\n\nA framework/platform for digital agreements/contracts(Ricardian) on the blockchain.\n\n**[Spacetar on opBNB](https://dorahacks.io/buidl/7055)**\n\nA Community Empowering Mental Well-Being envisions a decentralized platform where individuals can freely express themselves, find support, and connect with one another.\n\n***TripleC***\n\n**[Xcrypt](https://dorahacks.io/buidl/7182)**\n\nTransfer Funds anonymously on the Blockchain without reveiling your adddress"}],"skills":["python"],"applied":false,"isCurrentHackerRegistered":false,"buidlsCount":113,"applicationsCount":114,"organization":null,"description":"# Submission requirements\n\n- Have your project submitted via DoraHacks and listed at the BUIDL gallery. \n- Have your project information submitted via this form provided by BNBChain. [Click here](https://forms.monday.com/forms/d2c766b92e34c364ddd79014c2854c2c?r=use1)\n\n **· To learn more about the hackathon 👉 [Here](https://bnbchain.org/en/hackvolution)!**\n\n**Join the Telegram chat to get direct support from BNBChain and DoraHacks 👉 [Here](https://t.me/+XDOyQSGktkdmYzc1)**\n\n\n# Summary\n\nGet ready to embark on an extraordinary journey of innovation and collaboration! BNB Chain invites developers, researchers, and scientists to participate in the **BNB Chain Hackvolution** online event. This groundbreaking hackathon aims to redefine the future of decentralized applications (dApps) and offers a unique opportunity to contribute your expertise. Join us from **July 13 to September 1** and become part of this exciting initiative.\n\nDuring the hackathon, you'll have the chance to build innovative dApps using [opBNB](https://opbnb.bnbchain.org/zh-TW?utm_source=communityCN&utm_medium=qrcode&utm_campaign=opBNB), [Greenfield](https://greenfield.bnbchain.org/en), and [BNB Smart Chain](https://www.bnbchain.org/en/smartChain). These cutting-edge technologies provide functionalities and modularity that empower next-generation dApps. Projects will be categorized into **Infra, DeFi, Gaming, and AI** domains, inspiring innovation across diverse sectors.\n\nDon't miss out on this incredible opportunity to be part of the BNB Chain revolution. Join us and let's shape the future of blockchain technology and beyond.\n\n# Tracks\n\n- **Infrastructure**\n\n- **DeFi**\n\n- **Gaming**\n\n- **AI**\n\n# Discover the Power of opBNB and BNB Greenfield\n\nAt the heart of BNB Chain Hackvolution lies the opportunity to leverage the of opBNB and BNB Greenfield tailored for the developers community. By utilizing opBNB’s high performance and low cost, along with Greenfield’s feature of allowing the creation and management of both data and token assets, you can build next-gen dApps that push the boundaries of what is possible in the Web3 and blockchain space. For example, dApps equipped for mass adoption, focuses on sustainable DeFi or those that enable Web3 data economy.\n\nThrough this hackathon initiative, BNB Chain is encouraging and prioritizing the following areas of interest for infrastructure related projects, but not limited to the following:\n\n- opBNB projects using Rust and Erigon.\n- Projects focusing on interoperability within BNB Chain, especially tools that focuses on BNB Greenfield and opBNB.\n- Migrationtooling from other Decentralized Storage (e.g., Filecoin, Arweave, Storj).\n- Blockchain of Things; projects that are building an IoT historic or archive on BNB Greenfield.\n\nFor applications that are categorized as DeFi, Gaming, SocialFi and other dApp initiatives we welcome the unleash of creativity and for you to re-imagine these innovations. To learn more about initiatives that BNB Chain is interested in, check out our [Bounty Bank blog page](https://www.bnbchain.org/en/blog/bnb-chain-hackvolution-empowering-nextgen-dapps-with-opbnb-and-bnb-greenfield/).\n\nWhether you are interested in Infrastructure, DeFi, Gaming, or AI, this hackathon provides the platform to explore, innovate, and make a lasting impact. This is your chance to demonstrate your creativity, technical skills, and entrepreneurial spirit as you work alongside a vibrant community of like-minded individuals.\n\n# Who can apply?\n\nWe extend a warm invitation to community members, developers, researchers, and scientists to collaborate and contribute to these exciting initiatives.\n\n# What you can expect?\n\n**For all applicants**\n\n- 4 days of high-quality online workshops\n- Join the BNB Chain developer community, communicate and discuss with 10,000+ developers, get 24/7 tech support, and get updates from BNB Chain as soon as possible.\n- Build a relationship with the BNB Chain team\n\n**For 12 best project**\n\n- Bonuses based on ranking\n- 1-month trial participation in the BNB Chain Gas Grant program\n- 12 Best projects demo day\n- A tailored marketing support package with BNB Chain\n- Access to the discounted tools and services from the BNB Chain Kickstart program\n- $2000 worth of credits and a POC trial coupon valued at $5000 from Google Cloud and Alibaba Cloud\n\n# Prizes and Benefits Await\n\nAs a participant, you will have the opportunity to win exciting prizes and valuable benefits. The top projects will be selected based on technical innovation, business model, and team expertise.\n\nWe are thrilled to announce keen support from industry trailblazers and leaders such as [COMBO](https://combonetwork.io/), [CyberConnect](https://cyberconnect.me/?gclid=EAIaIQobChMIwcyPyImIgAMVpF4PAh2BFgifEAAYAyAAEgJhMvD_BwE), [Hooked Protocol](https://hooked.io/), [Alibaba Cloud](https://www.alibabacloud.com/), [Google Cloud](https://cloud.google.com/free?utm_source=google&utm_medium=cpc&utm_campaign=japac-NZ-all-en-dr-BKWS-all-core-trial-EXA-dr-1605216&utm_content=text-ad-none-none-DEV_c-CRE_602446207369-ADGP_Hybrid%2520%257C%2520BKWS%2520-%2520EXA%2520%257C%2520Txt%2520~%2520GCP_General_core%2520brand_main-KWID_43700071562408529-aud-1644542956228:kwd-6458750523&userloc_9118204-network_g&utm_term=KW_google%2520cloud&gclid=EAIaIQobChMIys2CqO-KgAMVM9EWBR1awgzaEAAYASAAEgLgZ_D_BwE&gclsrc=aw.ds) and [Ultiverse](https://www.ultiverse.io/). All of our supporters have contributed generously to the events, which enable this hackathon to become a reality. We are also excited to announce Dorahacks as our partner and main event organizer. [DoraHacks](https://dorahacks.io/) is a global hackathon community that strives to solve real-world problems with code.\n\nGenerous rewards, including cash prizes, marketing packages, participation in the BNB Chain’s Gas Grant program, and discounted access to essential tools and services, are up for grabs.\n\nFurthermore, our partners including by not limited to [DoraHacks](https://dorahacks.io/), [Foresight X](https://www.foresightx.net/%23/), [Trust Wallet](https://trustwallet.com/), [BSCScan](https://bscscan.com/), [ChainIDE](https://chainide.com/), [BSC News](https://www.bsc.news/) and [OpenBuild](https://openbuilds.com/) will also be helping to provide more exposures to participants. This is your chance to gain recognition, network with industry experts, and propel your project to new heights.\n\n# Review and Scoring Criteria\n\nOur esteemed panel of judges will evaluate and select the best 12 projects based on three key aspects: Technical innovation, Business model, and Team configuration.\n\nProjects participating in scoring must first meet these conditions:\n\n- Your Dapps must be based on the two technical solutions of opBNB and Greenfield.\n- The project should be deployed on BNB Chain, functional and available on the BNB Smart Chain (BSC), opBNB and BNB Greenfield Testnet for testing and evaluation.\n- Fall into one of the Infra, DeFi, Gaming and AI categories\n\n# Partners\n\n**Partnerships:**\n\n[COMBO](https://combonetwork.io/), [CyberConnect](https://cyberconnect.me/), [Google Cloud](https://cloud.google.com/), [Secondlive](https://secondlive.world/), [Hooked Protocol](https://hooked.io/), [Ultiverse](https://www.ultiverse.io/)\n\n**Community & media support:**\n\n[Trust Wallet](https://trustwallet.com/), [DoraHacks](https://dorahacks.io/zh), [ChainIDE](https://chainide.com/), [BNBprojects](https://bnbproject.org/), [Foresight X](http://www.foresightx.net/#/), [OpenBuild](https://openbuild.xyz/en), [Mathwallet](https://mathwallet.org/), [BSCScan](https://bscscan.com/), [BNBprojects](https://bnbproject.org/), [登链社区](https://learnblockchain.cn/), [BSCnews](https://www.bsc.news/), [Bitcoin.com](https://news.bitcoin.com/), [BSC.Daily](https://coinwire.com/)\n\n# About BNB Chain\n\n[BNB Chain](https://www.bnbchain.org/en) is a community-driven and decentralized blockchain, powered by BNB. It consists of BNB Beacon Chain and BNB Smart Chain (BSC), which is EVM compatible and facilitates a multi-chain ecosystem. It is the world’s largest smart contract blockchain by [daily active users.](https://twitter.com/nansen_ai/status/1667129159435337728) It has processed 3 billion transactions to date from [232 Million unique addresses](https://bscscan.com/chart/address) making it the largest layer 1 blockchain globally and bringing developers massive user access with ultra-low gas fees, and has experienced zero crashes since its inception. The ecosystem has more than 1,500 active dApps across multiple categories such as DeFi, Metaverse, blockchain games, NFT, and more.\n\n# Developer resources\n\n- https://bnbchain.org/en/developers \n\n- https://t.me/BNBChainDevs \n\n- https://twitter.com/BNBCHAIN ","onboardingCompleted":false,"registerFormUrl":null,"preRegisterTime":0,"publicContactHackerHandle":null,"hackersCount":254,"winnerAnnounced":false,"teamCount":0,"title":"BNB Chain Hackvolution: Empowering next-gen dApps with opBNB and BNB Greenfield","uname":"hackvolution","imageUrl":"https://cdn.dorahacks.io/static/files/1899199dfa82761aff8073b488fa7949.jpg","originUrl":null,"startTime":1689253200,"endTime":1693929599,"timezone":"UTC","city":"Virtual","visible":true,"approvalStatus":6,"state":0,"voteUrl":null,"voteMechanism":null,"bonusPrice":79000,"bonusMechanism":"xxx","followersCount":0,"ecosystem":null,"applyGuide":null,"weight":0,"participationForm":"Virtual","field":"","email":null,"contacts":null,"externalContacts":null,"telegram":null,"discord":null,"whatsapp":null,"wechat":null,"prizeFundingEscrowed":0,"token":"USDT","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,"isMultiTracksAllowed":false,"tracksLimitForBuidl":0,"showIdeaTab":true,"showQuestionTab":true,"showTeamTab":false,"bonusDescription":[],"askHackers":[],"isEnabledQuestions":false,"isEnabledAskHackers":false,"isBuidlsPrivate":false,"trackJudgingMaxScore":100,"bountyJudgingMaxScore":100,"isExtended":false,"oldEndTime":null,"status":2},"status":4,"bounty":null,"track":null,"table":"0","trackObj":{"id":287,"name":"Defi","judgingCriteria":"","weight":0},"bountyObjs":[]}],"chain":[],"chainList":[],"appliedGrant":false,"acceptRewards":false,"owner":83862,"ownerInfo":{"nickname":"Mystical94","username":"U_e4464f468842a3","avatar":"https://cdn.dorahacks.io/static/files/18e002a815e3aadb9d8c73c478ab55c6.jpeg"},"visible":true,"deleted":false,"continuousSponsoring":false,"pageView":0,"sponsoredCount":0,"starCount":0,"sponsoredAmount":"0.00","sponsoredPersons":0,"followers":0,"voteCount":0,"projectMembers":[],"bnbRound":null,"doraGrantDaoTags":[],"techTrees":[0],"infrastructureTags":[1,71,83],"otherInfrastructures":["category:opBNB"],"lastEditor":{"id":83862,"username":"U_e4464f468842a3","date":1723821702000},"upvoted":false,"followed":false,"upvoters":{"count":1,"list":[{"id":4266,"hacker":{"username":"U_e4464f468842a3","avatarUrl":"https://cdn.dorahacks.io/static/files/18e002a815e3aadb9d8c73c478ab55c6.jpeg","nickName":"Mystical94","introduction":""},"createdAt":"2023-08-27T19:17:29.636751+08:00","upvotes":"0.00","followed":false}]},"kycStatus":0,"ideas":[],"name":"Xcrypt","techniqueField":"","source":"-","vision":"Transfer Funds anonymously on the Blockchain without reveiling your adddress","projectDescription":"### ✍ Project Overview\n- Hey there, privacy enthusiasts and blockchain explorers! Have you ever wished you could send and receive funds without anyone snooping around your business? Well, say hello to Xcrypt – your personal privacy guardian on the opBNB and BNB Blockchain. We’re tackling the issue of exposing personal info during transactions by introducing stealth addresses. In simple terms, Xcrypt lets you receive funds on the opBNB and BNB Blockchain without unveiling your real address.\n- The project draws inspiration from existing privacy-focused blockchains like Monero and tools like Tornado Cash, but aims to bridge the gap between complex and expensive privacy solutions and non-private transfers.\n- It empowers users to maintain their privacy, fostering trust and security in the blockchain industry.\n\n### 😎 Idea\n- So, picture this: you’re in the world of blockchain, where transparency is the name of the game. But what if you could be like a digital ninja and keep your financial moves hiddem? That’s where Xcrypt draws inspiration from cool privacy champs like Monero and Tornado Cash. They’re like those fancy gadgets spies use, but they can be a bit pricey and complicated. But wait, here’s the twist – we’re making privacy simple and accessible for everyone, just like your favorite comfort food.\n\n- Speaking of twists, have you heard of Vitalik’s article about “Stealth Addresses”? It’s like finding the missing piece of the puzzle! Inspired by this ninja move, we’re crafting a tool that lets you go hidden while making transactions. And why opBNB and BNB, you ask? Well, it’s like the perfect partner in crime – fast and wallet-friendly transactions. And Xcrypt? It’s like your digital alter ego, keeping you anonymous while you make transactions. Cool, right?\n\n### 📺 Background & Context\n- Issue Addressed: Xcrypt addresses the pressing concern of inadequate privacy in blockchain transactions. While the blockchain guarantees transparency and immutability, it simultaneously exposes sensitive details of transactions, such as sender and recipient addresses. This lack of privacy imposes significant risks on both individuals and businesses, potentially connecting their financial actions to real-world identities.\n\n- Fundamental Privacy: Privacy holds a crucial role in financial transactions. Without a robust privacy layer, users remain vulnerable to an array of risks:\n\n - Identity Exposure: Open blockchain transactions create an avenue for observers to correlate transactions with specific people or entities. This jeopardizes financial privacy and exposes individuals to potential targeting or surveillance.\n\n - Financial Profiling: In-depth profiling of individuals and businesses becomes possible through the analysis of blockchain transactions. This includes identifying spending habits, income sources, and financial associations. Such data can be exploited for targeted ads, discrimination, or even extortion.\n\n - Security Gaps: Transparent blockchains, when repeatedly used for transactions, render users susceptible to hacking and phishing threats. Criminals can analyze transaction histories to discern patterns, monitor balances, and exploit security vulnerabilities.\n\n - Business Exposure: Transparent transactions inadvertently reveal confidential financial information of companies, like sales figures, supply chain connections, and partnerships. Competitors can leverage this intel to gain an edge, potentially undermining business competitiveness.\n\n - Regulatory Hurdles: Certain industries, such as healthcare and finance, mandate stringent privacy regulations. Transparent blockchain transactions could clash with these standards, resulting in legal complications or penalties for non-compliance.\n\n- Significance: Addressing this issue assumes paramount importance due to its direct impact on safeguarding financial confidentiality. Preserving the integrity of personal and corporate information from prying eyes is central. By introducing a user-centric solution that leverages stealth addresses for anonymous transactions, Xcrypt empowers users to regain control over their financial privacy and alleviate the potential pitfalls linked with identity exposure.\n\n### ☄️ Value Proposition\n- Enhanced Privacy: Xcrypt utilizes stealth addresses, allowing users to receive funds without revealing their real addresses. This provides a significant level of privacy for individuals and businesses, ensuring that their financial activities are shielded from prying eyes.\n\n- User-Friendly Solution: Xcrypt aims to be accessible and user-friendly for both power users and non-power users. The generation and usage of Xcrypt IDs and stealth addresses are designed to be simple and intuitive, enabling a wide range of users to adopt and utilize the solution without technical complexity.\n\n- Affordability and Speed: Xcrypt is built on the opBNB and BNB Blockchain, chosen for its fast and affordable transactions. By leveraging opBNB and BNB blockchain, Xcrypt offers users the benefits of privacy without sacrificing transaction speed or incurring high fees commonly associated with other privacy-focused solutions.\n\n- Bridge the Gap: Xcrypt fills the gap between expensive and complex privacy solutions, such as Monero, and non-private transfers on transparent blockchains. It provides an intermediate solution that offers a significant level of privacy without the need for specialized tools or high costs.\n\n- Wide Applicability: Xcrypt's privacy solution can be applied to various use cases. It can benefit individuals who want to keep their financial transactions private, businesses that need to protect their financial information, and anyone concerned about the risks associated with revealing their identity during transactions.\n\n- Market Differentiation: Xcrypt stands out in the market by offering a unique approach to privacy in blockchain transactions. While other solutions rely on heavy computations or complex methodologies, Xcrypt simplifies the process with stealth addresses and Xcrypt IDs, making it more accessible and user-friendly.\n\n### ✒ Technical Description\nThe Xcrypt solution implements stealth addresses on the opBNB and BNB Blockchain using a combination of cryptographic techniques to ensure transaction security and user privacy. Let’s break down the key steps and encryption methods involved:\n\n#### Stealth Addresses Generation:\nReceiver, generates a root spending key (receiver private key) and computes a stealth meta-address (receiver public key or receiver’s address) using elliptic curve cryptography. This stealth meta-address (receiver’s address) becomes a publicly known identifier for the receiver on the blockchain.\n#### Ephemeral Key Generation:\nThe Sender, generates an ephemeral key (sender’s private key) which the sender keeps secret. This key is like a temporary secret code.\n#### Shared Secret Creation:\nThe Sender combines his ephemeral key (sender’s private key) with Receiver’s stealth meta-address (receivers public key) to create a shared secret (S). This shared secret is a private connection between Sender and Receiver.\n#### Ephemeral Public Key Publishing:\nSender creates an ephemeral public key (senders public key) from his ephemeral key (senders private key) and publishes it on a public registry. This public key can be seen by anyone.\n#### Transaction Process:\nSender sends funds to a stealth address, which is derived from the combination of his ephemeral key (senders private key) and Receiver’s meta-address (receivers public key).\n#### Recipient’s Discovery:\nReceiver scans the public registry for ephemeral public keys (senders public key) and tries to unlock special addresses (stealth addresses) using his spending key (receivers private key) and the shared secrets (S). If funds are found in an address, Receiver can access them.\n#### Address Ownership and Privacy:\nThe transaction details are recorded on the blockchain, but the connection between the recipient’s real address and the stealth address remains private. This adds a layer of privacy by making it difficult for external observers to link transactions to specific recipients.\nThe cryptographic techniques used in this process include:\n\n#### Elliptic Curve Cryptography (ECC):\nThis is used to generate private and public keys, compute shared secrets, and create addresses. ECC provides a secure way to perform mathematical operations that ensure transaction security and privacy.\n#### Hash Functions:\nHashing is used to derive addresses from public keys and shared secrets. Hash functions are one-way functions that add an extra layer of security to the process.\n#### Public Key Registries:\nThe public registry where ephemeral public keys are published allows participants (like Receiver) to scan and identify stealth addresses. This mechanism helps maintain privacy without revealing the actual recipient’s address.\n\n### 💻 Implementation\n- We have started with a standard Hardhat project and added essential methods to the StealthAddress contract. To enhance credibility, we intentionally avoided making the contract upgradeable, as there's no on-chain governance currently. If an upgrade is needed, we'll deploy a new version and provide client-side support.\n- Next, we developed the UI/UX using React and TypeScript, focusing on a simple yet elegant design for both power and non-power users. The UI colors and feel is being build keeping in mind the opBNB and BNB Blockchain.\n- We used wagmi library for blockchain interactions which streamlined the process.\n- The elliptic library handled the complex math involved with elliptic curves, and both libraries featured TypeScript typings, making them a joy to work with.\n- Tools Used: Solidity, Hardhat, opBNB and BNB Blockchain, React, Typescript, Wagmi and Metamask.\n\n### 👥 Intended Users\n- The intended users of Xcrypt would be anyone who values privacy in their transactions and wants to keep their identity hidden. This could include individuals who want to keep their financial transactions private, businesses that want to protect their financial information, or anyone who wants to avoid the risks associated with revealing their identity in a transaction.\n- Xcrypt is designed to be user-friendly for both power and non-power users, making it accessible to a wide range of people.\n\n### ⚔ Challenges\n- The main challenge was designing the best possible user experience, which we believe the current implementation achieves.\n- Another challenge was signing and sending withdrawal transactions without using the connected user wallet. We resolved this by creating a custom-built transaction broadcasted via public RPC URLs, which works effectively.\n\n#### Credits\n- The project is being inspired from Hazed and some parts of the code has been used.\n- The deployment on the opBNB and BNB Blockchain and its integration with the opBNB and BNB Blockchain is our original work and no one has done it before.\n\n### 💹 Market Analysis\n- Xcrypt's solution addresses a significant market opportunity by providing privacy in blockchain transactions. Privacy has become a crucial concern in the blockchain industry as individuals and businesses increasingly recognize the risks associated with transparent transactions. By offering a user-friendly and accessible solution, Xcrypt taps into a growing demand for privacy-enhancing tools in the blockchain space.\n- The Total Addressable Market (TAM) for Xcrypt's solution is substantial. As blockchain technology continues to gain adoption across industries, the need for privacy in transactions becomes more prevalent. Individuals who value financial privacy, businesses seeking to protect sensitive financial information, and anyone concerned about the risks of identity exposure in transactions represent a wide range of potential users for Xcrypt.\n- Xcrypt differentiates itself from incumbent competitors by providing a simpler and more cost-effective solution. Existing privacy-focused blockchains like Monero require specialized tools and incur higher costs, making them less accessible to mainstream users. Xcrypt bridges the gap between complex and expensive privacy solutions and non-private transfers, offering a user-friendly option with its stealth address implementation. The ease of generating Xcrypt IDs and utilizing stealth addresses sets Xcrypt apart from incumbent competitors.\n- Furthermore, Xcrypt leverages the opBNB and BNB Blockchain, which provides fast and affordable transactions. This strategic choice enhances the scalability and usability of the solution, making it attractive to users who prioritize transaction speed and cost-efficiency.\n\n### ☄️ What's next?\n- Currently, Xcrypt only supports native coin transfers(BNB). However, adding support for tokens and NFTs would greatly enhance its utility. We are considering implementing relayer nodes to mint and sell notes as tokens (or NFTs) in exchange for covering user fees on transfers.\n- This approach allows users to maintain their anonymity while using note tokens to request relayers to cover fees and pay for transactions. Competition between relayers could help keep transfer fees reasonable.\n- Making it live on the opBNB and BNB Mainnet 😉\n- Expanding Xcrypt by enabling cross-chain transactions. Additionally, gas optimization in the StealthAddress contract and its interaction with the receiving side can be improved.\n- Obtaining a legal opinion on Xcrypt's regulatory compliance would be beneficial. However, since the smart contract is on the blockchain and also verified on the blockhain and the code is available on GitHub, funds will remain accessible even if the website is shut down.\n- Future UX improvements include notifications for funds received on new controlled stealth addresses and a mobile app (although the website is mobile-friendly). The possibilities are endless!\n\n### 🌟 Conclusion\n- Xcrypt is a user-friendly and innovative solution that addresses the growing need for privacy in blockchain transactions. By leveraging stealth addresses and the opBNB and BNB Blockchain, Xcrypt provides a simple and cost-effective way for users to keep their financial transactions private. With a substantial market opportunity and a focus on usability, Xcrypt has the potential to become a leading privacy solution in the blockchain industry.","teamDescription":"- Shubham Gupta: Full-Stack Blockchain Developer with a strong knack for Entrepreneurship.","githubPage":"https://github.com/Mystical94/xcrypt","githubVerify":0,"demoLink":null,"demoVideo":null,"ownerTitle":null,"ownerIntroduction":null,"twitterVerified":false,"weibo":null,"nft":null,"scOwner":"","editTime":1723821702,"upvotes":"0.00","isRecruitingEnabled":false,"recruitingInfo":"","recruitingLink":null,"twitter":"0xmysticShub","facebook":null,"instagram":null,"socialTelegram":null,"socialDiscord":null,"socialLinks":[],"showedFunding":false,"agentStatus":null,"createdAt":"2023-08-23T23:14:31.708672+08:00","updatedAt":"2024-08-16T23:21:42.628868+08:00","milestoneEditor":83862,"path":"/buidl/7182","techField":"","techFieldAry":[],"techTree":[0],"tags":[1,71,83],"otherTags":["category:opBNB"],"origin":"-","intro":"### ✍ Project Overview\n- Hey there, privacy enthusiasts and blockchain explorers! Have you ever wished you could send and receive funds without anyone snooping around your business? Well, say hello to Xcrypt – your personal privacy guardian on the opBNB and BNB Blockchain. We’re tackling the issue of exposing personal info during transactions by introducing stealth addresses. In simple terms, Xcrypt lets you receive funds on the opBNB and BNB Blockchain without unveiling your real address.\n- The project draws inspiration from existing privacy-focused blockchains like Monero and tools like Tornado Cash, but aims to bridge the gap between complex and expensive privacy solutions and non-private transfers.\n- It empowers users to maintain their privacy, fostering trust and security in the blockchain industry.\n\n### 😎 Idea\n- So, picture this: you’re in the world of blockchain, where transparency is the name of the game. But what if you could be like a digital ninja and keep your financial moves hiddem? That’s where Xcrypt draws inspiration from cool privacy champs like Monero and Tornado Cash. They’re like those fancy gadgets spies use, but they can be a bit pricey and complicated. But wait, here’s the twist – we’re making privacy simple and accessible for everyone, just like your favorite comfort food.\n\n- Speaking of twists, have you heard of Vitalik’s article about “Stealth Addresses”? It’s like finding the missing piece of the puzzle! Inspired by this ninja move, we’re crafting a tool that lets you go hidden while making transactions. And why opBNB and BNB, you ask? Well, it’s like the perfect partner in crime – fast and wallet-friendly transactions. And Xcrypt? It’s like your digital alter ego, keeping you anonymous while you make transactions. Cool, right?\n\n### 📺 Background & Context\n- Issue Addressed: Xcrypt addresses the pressing concern of inadequate privacy in blockchain transactions. While the blockchain guarantees transparency and immutability, it simultaneously exposes sensitive details of transactions, such as sender and recipient addresses. This lack of privacy imposes significant risks on both individuals and businesses, potentially connecting their financial actions to real-world identities.\n\n- Fundamental Privacy: Privacy holds a crucial role in financial transactions. Without a robust privacy layer, users remain vulnerable to an array of risks:\n\n - Identity Exposure: Open blockchain transactions create an avenue for observers to correlate transactions with specific people or entities. This jeopardizes financial privacy and exposes individuals to potential targeting or surveillance.\n\n - Financial Profiling: In-depth profiling of individuals and businesses becomes possible through the analysis of blockchain transactions. This includes identifying spending habits, income sources, and financial associations. Such data can be exploited for targeted ads, discrimination, or even extortion.\n\n - Security Gaps: Transparent blockchains, when repeatedly used for transactions, render users susceptible to hacking and phishing threats. Criminals can analyze transaction histories to discern patterns, monitor balances, and exploit security vulnerabilities.\n\n - Business Exposure: Transparent transactions inadvertently reveal confidential financial information of companies, like sales figures, supply chain connections, and partnerships. Competitors can leverage this intel to gain an edge, potentially undermining business competitiveness.\n\n - Regulatory Hurdles: Certain industries, such as healthcare and finance, mandate stringent privacy regulations. Transparent blockchain transactions could clash with these standards, resulting in legal complications or penalties for non-compliance.\n\n- Significance: Addressing this issue assumes paramount importance due to its direct impact on safeguarding financial confidentiality. Preserving the integrity of personal and corporate information from prying eyes is central. By introducing a user-centric solution that leverages stealth addresses for anonymous transactions, Xcrypt empowers users to regain control over their financial privacy and alleviate the potential pitfalls linked with identity exposure.\n\n### ☄️ Value Proposition\n- Enhanced Privacy: Xcrypt utilizes stealth addresses, allowing users to receive funds without revealing their real addresses. This provides a significant level of privacy for individuals and businesses, ensuring that their financial activities are shielded from prying eyes.\n\n- User-Friendly Solution: Xcrypt aims to be accessible and user-friendly for both power users and non-power users. The generation and usage of Xcrypt IDs and stealth addresses are designed to be simple and intuitive, enabling a wide range of users to adopt and utilize the solution without technical complexity.\n\n- Affordability and Speed: Xcrypt is built on the opBNB and BNB Blockchain, chosen for its fast and affordable transactions. By leveraging opBNB and BNB blockchain, Xcrypt offers users the benefits of privacy without sacrificing transaction speed or incurring high fees commonly associated with other privacy-focused solutions.\n\n- Bridge the Gap: Xcrypt fills the gap between expensive and complex privacy solutions, such as Monero, and non-private transfers on transparent blockchains. It provides an intermediate solution that offers a significant level of privacy without the need for specialized tools or high costs.\n\n- Wide Applicability: Xcrypt's privacy solution can be applied to various use cases. It can benefit individuals who want to keep their financial transactions private, businesses that need to protect their financial information, and anyone concerned about the risks associated with revealing their identity during transactions.\n\n- Market Differentiation: Xcrypt stands out in the market by offering a unique approach to privacy in blockchain transactions. While other solutions rely on heavy computations or complex methodologies, Xcrypt simplifies the process with stealth addresses and Xcrypt IDs, making it more accessible and user-friendly.\n\n### ✒ Technical Description\nThe Xcrypt solution implements stealth addresses on the opBNB and BNB Blockchain using a combination of cryptographic techniques to ensure transaction security and user privacy. Let’s break down the key steps and encryption methods involved:\n\n#### Stealth Addresses Generation:\nReceiver, generates a root spending key (receiver private key) and computes a stealth meta-address (receiver public key or receiver’s address) using elliptic curve cryptography. This stealth meta-address (receiver’s address) becomes a publicly known identifier for the receiver on the blockchain.\n#### Ephemeral Key Generation:\nThe Sender, generates an ephemeral key (sender’s private key) which the sender keeps secret. This key is like a temporary secret code.\n#### Shared Secret Creation:\nThe Sender combines his ephemeral key (sender’s private key) with Receiver’s stealth meta-address (receivers public key) to create a shared secret (S). This shared secret is a private connection between Sender and Receiver.\n#### Ephemeral Public Key Publishing:\nSender creates an ephemeral public key (senders public key) from his ephemeral key (senders private key) and publishes it on a public registry. This public key can be seen by anyone.\n#### Transaction Process:\nSender sends funds to a stealth address, which is derived from the combination of his ephemeral key (senders private key) and Receiver’s meta-address (receivers public key).\n#### Recipient’s Discovery:\nReceiver scans the public registry for ephemeral public keys (senders public key) and tries to unlock special addresses (stealth addresses) using his spending key (receivers private key) and the shared secrets (S). If funds are found in an address, Receiver can access them.\n#### Address Ownership and Privacy:\nThe transaction details are recorded on the blockchain, but the connection between the recipient’s real address and the stealth address remains private. This adds a layer of privacy by making it difficult for external observers to link transactions to specific recipients.\nThe cryptographic techniques used in this process include:\n\n#### Elliptic Curve Cryptography (ECC):\nThis is used to generate private and public keys, compute shared secrets, and create addresses. ECC provides a secure way to perform mathematical operations that ensure transaction security and privacy.\n#### Hash Functions:\nHashing is used to derive addresses from public keys and shared secrets. Hash functions are one-way functions that add an extra layer of security to the process.\n#### Public Key Registries:\nThe public registry where ephemeral public keys are published allows participants (like Receiver) to scan and identify stealth addresses. This mechanism helps maintain privacy without revealing the actual recipient’s address.\n\n### 💻 Implementation\n- We have started with a standard Hardhat project and added essential methods to the StealthAddress contract. To enhance credibility, we intentionally avoided making the contract upgradeable, as there's no on-chain governance currently. If an upgrade is needed, we'll deploy a new version and provide client-side support.\n- Next, we developed the UI/UX using React and TypeScript, focusing on a simple yet elegant design for both power and non-power users. The UI colors and feel is being build keeping in mind the opBNB and BNB Blockchain.\n- We used wagmi library for blockchain interactions which streamlined the process.\n- The elliptic library handled the complex math involved with elliptic curves, and both libraries featured TypeScript typings, making them a joy to work with.\n- Tools Used: Solidity, Hardhat, opBNB and BNB Blockchain, React, Typescript, Wagmi and Metamask.\n\n### 👥 Intended Users\n- The intended users of Xcrypt would be anyone who values privacy in their transactions and wants to keep their identity hidden. This could include individuals who want to keep their financial transactions private, businesses that want to protect their financial information, or anyone who wants to avoid the risks associated with revealing their identity in a transaction.\n- Xcrypt is designed to be user-friendly for both power and non-power users, making it accessible to a wide range of people.\n\n### ⚔ Challenges\n- The main challenge was designing the best possible user experience, which we believe the current implementation achieves.\n- Another challenge was signing and sending withdrawal transactions without using the connected user wallet. We resolved this by creating a custom-built transaction broadcasted via public RPC URLs, which works effectively.\n\n#### Credits\n- The project is being inspired from Hazed and some parts of the code has been used.\n- The deployment on the opBNB and BNB Blockchain and its integration with the opBNB and BNB Blockchain is our original work and no one has done it before.\n\n### 💹 Market Analysis\n- Xcrypt's solution addresses a significant market opportunity by providing privacy in blockchain transactions. Privacy has become a crucial concern in the blockchain industry as individuals and businesses increasingly recognize the risks associated with transparent transactions. By offering a user-friendly and accessible solution, Xcrypt taps into a growing demand for privacy-enhancing tools in the blockchain space.\n- The Total Addressable Market (TAM) for Xcrypt's solution is substantial. As blockchain technology continues to gain adoption across industries, the need for privacy in transactions becomes more prevalent. Individuals who value financial privacy, businesses seeking to protect sensitive financial information, and anyone concerned about the risks of identity exposure in transactions represent a wide range of potential users for Xcrypt.\n- Xcrypt differentiates itself from incumbent competitors by providing a simpler and more cost-effective solution. Existing privacy-focused blockchains like Monero require specialized tools and incur higher costs, making them less accessible to mainstream users. Xcrypt bridges the gap between complex and expensive privacy solutions and non-private transfers, offering a user-friendly option with its stealth address implementation. The ease of generating Xcrypt IDs and utilizing stealth addresses sets Xcrypt apart from incumbent competitors.\n- Furthermore, Xcrypt leverages the opBNB and BNB Blockchain, which provides fast and affordable transactions. This strategic choice enhances the scalability and usability of the solution, making it attractive to users who prioritize transaction speed and cost-efficiency.\n\n### ☄️ What's next?\n- Currently, Xcrypt only supports native coin transfers(BNB). However, adding support for tokens and NFTs would greatly enhance its utility. We are considering implementing relayer nodes to mint and sell notes as tokens (or NFTs) in exchange for covering user fees on transfers.\n- This approach allows users to maintain their anonymity while using note tokens to request relayers to cover fees and pay for transactions. Competition between relayers could help keep transfer fees reasonable.\n- Making it live on the opBNB and BNB Mainnet 😉\n- Expanding Xcrypt by enabling cross-chain transactions. Additionally, gas optimization in the StealthAddress contract and its interaction with the receiving side can be improved.\n- Obtaining a legal opinion on Xcrypt's regulatory compliance would be beneficial. However, since the smart contract is on the blockchain and also verified on the blockhain and the code is available on GitHub, funds will remain accessible even if the website is shut down.\n- Future UX improvements include notifications for funds received on new controlled stealth addresses and a mobile app (although the website is mobile-friendly). The possibilities are endless!\n\n### 🌟 Conclusion\n- Xcrypt is a user-friendly and innovative solution that addresses the growing need for privacy in blockchain transactions. By leveraging stealth addresses and the opBNB and BNB Blockchain, Xcrypt provides a simple and cost-effective way for users to keep their financial transactions private. With a substantial market opportunity and a focus on usability, Xcrypt has the potential to become a leading privacy solution in the blockchain industry.","images":["https://cdn.dorahacks.io/static/files/18a6590fcdfa2215f64701c4b5f8b556.png"],"team":"- Shubham Gupta: Full-Stack Blockchain Developer with a strong knack for Entrepreneurship.","github":"https://github.com/Mystical94/xcrypt","demo":null,"video":null,"socialTwitter":"0xmysticShub","socialFacebook":null,"socialInstagram":null,"nftId":null,"haxonBuidls":[{"id":7181,"projectId":7182,"name":"Xcrypt","track":"","bounties":["XDC.NETWORK - $25,000"],"haxonId":123,"haxonName":"ETHToronto Virtual & In-Person Hackathon","status":2,"haxonCreateAt":"2023/07/09 16:00:00 UTC"},{"id":7479,"projectId":7182,"name":"Xcrypt","track":"Defi","bounties":[],"haxonId":157,"haxonName":"BNB Chain Hackvolution: Empowering next-gen dApps with opBNB and BNB Greenfield","status":2,"haxonCreateAt":"2023/07/13 13:00:00 UTC"}],"kudoData":null,"bountyObjs":[],"tracks":[],"badges":["{\"schema\":\"BADGE\",\"d\":{\"index\":\"b7124\",\"badgeType\":\"buidl\",\"path\":\"/buidl/7182/achievement/b7124\",\"ownerId\":7182,\"iconName\":\"b1\",\"updatedDate\":\"2023/11/09\",\"title\":\"BNB Chain Hackvolution: Empowering next-gen dApps with opBNB and BNB Greenfield\",\"detail\":\"Winner\",\"tag\":\"Hackathon\",\"imageUrl\":\"https://cdn.dorahacks.io/static/badge/b1_BNB~c32Chain~c32Hackvolution:~c32Empowering~c32next-gen~c32dApps~c32with~c32opBNB~c32and~c32BNB~c32Greenfield.webp\",\"shareImageUrl\":\"https://cdn.dorahacks.io/static/badge/b1_BNB~c32Chain~c32Hackvolution:~c32Empowering~c32next-gen~c32dApps~c32with~c32opBNB~c32and~c32BNB~c32Greenfield.jpg\",\"id\":7124,\"metaInfo\":{\"type\":\"HACKATHON_WINNER\",\"hackathonId\":157,\"title\":\"BNB Chain Hackvolution: Empowering next-gen dApps with opBNB and BNB Greenfield\"},\"createdAt\":1699507935,\"updatedAt\":1699507935,\"type\":1,\"subjectId\":157,\"metadata\":{},\"buidl\":7182}}","{\"schema\":\"BADGE\",\"d\":{\"index\":\"b7050\",\"badgeType\":\"buidl\",\"path\":\"/buidl/7182/achievement/b7050\",\"ownerId\":7182,\"iconName\":\"b1\",\"updatedDate\":\"2023/11/09\",\"title\":\"ETHToronto Virtual & In-Person Hackathon\",\"detail\":\"Winner\",\"tag\":\"Hackathon\",\"imageUrl\":\"https://cdn.dorahacks.io/static/badge/b1_ETHToronto~c32Virtual~c32&~c32In-Person~c32Hackathon.webp\",\"shareImageUrl\":\"https://cdn.dorahacks.io/static/badge/b1_ETHToronto~c32Virtual~c32&~c32In-Person~c32Hackathon.jpg\",\"id\":7050,\"metaInfo\":{\"type\":\"HACKATHON_WINNER\",\"hackathonId\":123,\"title\":\"ETHToronto Virtual & In-Person Hackathon\"},\"createdAt\":1699507934,\"updatedAt\":1699507934,\"type\":1,\"subjectId\":123,\"metadata\":{},\"buidl\":7182}}","{\"schema\":\"BADGE\",\"d\":{\"index\":\"b6440\",\"badgeType\":\"buidl\",\"path\":\"/buidl/7182/achievement/b6440\",\"ownerId\":7182,\"iconName\":\"b0\",\"updatedDate\":\"2023/08/23\",\"title\":\"ETHToronto Virtual & In-Person Hackathon\",\"detail\":\"Participation\",\"tag\":\"Hackathon\",\"imageUrl\":\"https://cdn.dorahacks.io/static/badge/b0_ETHToronto~c32Virtual~c32&~c32In-Person~c32Hackathon.webp\",\"shareImageUrl\":\"https://cdn.dorahacks.io/static/badge/b0_ETHToronto~c32Virtual~c32&~c32In-Person~c32Hackathon.jpg\",\"id\":6440,\"metaInfo\":{\"type\":\"HACKATHON_PARTICIPATION\",\"hackathonId\":123,\"title\":\"ETHToronto Virtual & In-Person Hackathon\"},\"createdAt\":1692805542,\"updatedAt\":1692805542,\"type\":0,\"subjectId\":123,\"metadata\":{},\"buidl\":7182}}"]}}