{"schema":"BUIDL","d":{"id":5979,"members":[],"pictures":["https://cdn.dorahacks.io/static/files/18862580d69891b07c6e8d045cc98c4e.png"],"roundProjects":[],"hackathonProjects":[{"id":5021,"hackathon":{"id":100,"tabSet":[{"id":117,"name":"Tracks","slug":"tracks","description":"# Tracks\n\n
\n\n### Track 1: Leverage EVM Extensions on the Evmos Testnet (Higher incentive)\n\nEvmos would like to invite developers to build and submit dApps that leverage the EVM Extensions launched onto our Testnet. Our stateful precompiles called EVM Extensions represent the next frontier for Evmos and bring the cross-chain vision closer to fruition. Evmos encourages all developers to take advantage of these novel implementations and generate new possibilities with their intuitive and exciting solutions.\n\nTo participate in the EVM Extensions Track, your project must be built using the EVM Extensions on Evmos's Testnet. (More detail on EVM Precompiles will come out before launch).\n\n
\n\n### Track 2: Buidl on Evmos: Infrastructure & Tooling\nAre you ready to take on the challenge of building solutions that make building on Evmos a seamless and secure experience? For the Infrastructure and Tooling track, Evmos is looking for participants who can create tools that enhance security, simplify debugging, improve testing, and optimize the developer experience. Evmos is calling on all developers who are passionate about cross-chain innovation and want to contribute to a stronger and more robust Evmos ecosystem.\n\nAn Idea: Construct a webapp featuring friendly UI/UX to create all Cosmos and EVMOS supported governance proposals with the ability to query, validate, and upstream proposals to Commonwealth and on-chain. Another idea includes \n\n
\n\n### Track 3: Buidl on Evmos: DeFI\n\nFor this track, Evmos invites you to rethink and redefine DeFi by developing innovative applications, tools, or platforms that push the limits of traditional finance. Your project should prioritize accessibility, usability, and inclusivity, making DeFi more accessible to the general public. Whether you're creating a new lending protocol, designing a user-friendly interface, or developing a game-changing DEX, Evmos is excited to see your unique perspective on the world of decentralized finance while leveraging the strength of Evmos.\n\nAn Idea: Display an intuitive way to visualize all approvals (token, public key signature, authz, etc.) given to various apps and ecosystems based on address and offers a way to revoke any if necessary.\n\n
\n\n### Track 4: Buidl on Evmos: DAO & Community\n\nThe DAO and Community track encourages developers to build tools that increase transparency and accountability while remaining adaptable in a cross-chain ecosystem in Evmos. This track is ideal for projects that aim to create community-led decentralized organizations that can operate autonomously and transparently. Developers are encouraged to build tools and infrastructure that can enable decentralized decision-making, decentralized funding, and incentivization mechanisms to drive community participation and engagement.\n\nSubmission materials should highlight the use of Evmos and cross-chain interoperability, as well as the project's ability to promote transparency and accountability. Projects that use innovative approaches to incentivizing and engaging community participation will be highly regarded by the judges.\n\nAn Idea: A platform to pull in Commonwealth data and interactions alongside proposals with validators voting data to display how validators vote over time. Delegators can then use this information to change delegation or understand how their validators tend to vote."},{"id":118,"name":"Requirements","slug":"requirements","description":"# Entry Requirements, Judge Criteria & Process\n\nAll submissions needs to deploy to our Evmos Testnet and incorporate these following:\n\n- utilize our EVM Extensions capabilities or Buidl on Evmos\n- incorporate unique use cases or implementation\n- a demo video illustrating the project in comprehensive detail\n- links to your code repository, website and socials to help judges review your submission. If the participant's website is private, the project must include login credentials in its testing instructions.\n- In the README: detail why your team went with the approaches they did\n- In the README: experience developing on Evmos\n- bonus: utilize our ecosystem partnerships/sponsorship in their dApp development (more to come with this)\n\n
\n\n### **Other Requirements:**\n\n**Multiple Submissions**\n\nEntrants are allowed to submit more than one submission. However, each submission must be unique and substantially different from the others.\n\n**Submission Materials**\n\nAll submission materials must be in English, including the demonstration video, text description, and testing instructions, as well as any other materials submitted.\n\n**Financial or Preferential Support**\n\nProjects must not have been developed with any support from the Sponsor or Administrator. The Sponsor reserves the right to disqualify a Project if awarding a prize to the Project would create a real or apparent conflict of interest.\n\n**Disclosure**\n\nProjects submitted to other hackathons or challenges need to be disclosed in the submission or README of the project.\n\nOur judges will evaluate project submissions based on how the team implements their features and the uniqueness of the application. Top three projects will be awarded the prize pool."},{"id":162,"name":"Workshops","slug":"workshops","description":"# Workshop\n\nYouTube playlist: https://youtube.com/playlist?list=PLpkpEL9gYGexCQfzpUli6StzHNCnbOuKP\n\n
\n\n

Title

Speaker

Live Links/Recording

Getting Started on Testnet

Dan

Youtube>

Binance>

Diving into EVM Extensions

Dan & Vlad

Youtube>

Binance>

\n\n\n# 01: Getting Started on Testnet\n\n![youtube](https://www.youtube.com/watch?v=pzk70FaqtQE)\n\n
\n\nThe notes of the workshop: https://www.notion.so/Dorahacks-Workshop-Getting-Started-on-Testnet-e37df4a1fc2a446f97ae3a501f767120?pvs=4\n\n# 02: Diving into EVM Extensions\n\n![youtube](https://www.youtube.com/watch?v=pJhOfZ0ScAE)\n\n
\n\nThe notes of the workshop: https://www.notion.so/Dorahacks-Workshop-2-Diving-into-EVM-Extensions-c4a73b8e426541c4b716fb18925eb9a7?pvs=4"},{"id":229,"name":"Results","slug":"results","description":"# [EVMOS] EVM Extensions Hackathon Recap & Result Announcement\n\nYo! The [EVM Extensions Hackathon](https://dorahacks.io/hackathon/EVM/detail) winners list has been announced! The Evmos team went through all the projects and picked out 5 that really stood out. Congrats to all the winners!\n\nEvmos is an EVM-compatible, IBC-enabled blockchain in the Cosmos ecosystem that’s designed for cross-chain dApp development. With EVM Extensions, developers can create their own business logic for connecting with other smart contracts and appchains in the Cosmos ecosystem. Following this hackathon, the Evmos grant program will also be launched. Stay tuned!\n\nNow check out the 5 winners below!\n\n# Track: Leverage EVM Extensions on the Evmos Testnet\n\n
\n\n### 🥇[FiNFT](https://dorahacks.io/buidl/6422)\n\nBoosting Intrinsic Value in NFTs Through Burn-to-Withdraw and Staking\n\n
\n\n### 🥈[Winmos](https://dorahacks.io/buidl/5979)\n\nWinmos is a no loss lottery hosted on Evmos Testnet that gathers user staking rewards and picks 1 winner every 24 hours.\n\n
\n\n### 🥉[Stakewise](https://dorahacks.io/buidl/5956)\n\nStakewise is an EVMOS-native staking application that allows users to seamlessly balance their stake across validators on EVMOS based on their personalized preferences.\n\n
\n\n### 🥉[Incentivized Delegations](https://dorahacks.io/buidl/5981)\n\nIncentivizing Redelegations for Greater Network Decentralization and Security\n\n# Track: DAO & COMMUNITY\n\n
\n\n### 🥇[TrustSight](https://dorahacks.io/buidl/5966)\n\nTrustSight is a community-driven, EigenTrust-based Web3 reputation platform for crowdsourcing on-chain trust."}],"skills":["python"],"applied":false,"isCurrentHackerRegistered":false,"buidlsCount":93,"applicationsCount":114,"organization":null,"description":"# Introduction\n\nWelcome to Evmos’s first online hackathon with Dorahacks. The focus of these hackathons will center around our EVM Extensions.\n\n**What are EVM Extensions?**\n\nEvmos has introduced stateful precompiles called EVM Extensions, which are unique to its implementation. The ability of EVM Extensions on Evmos will unlock both blockchains and individual applications to customize and leverage the functionality of IBC and other Cosmos SDK modules. These extensions extend the EVM's capabilities beyond its original specification without compromising equivalence with Ethereum's execution layer.\n\nWith EVM Extensions, developers can create their own business logic for connecting with other smart contracts and appchains in the Cosmos ecosystem. Applications are no longer limited to a single blockchain and can make smart contract calls to IBC modules to communicate with other chains, securely send and receive assets across chains, stake EVMOS tokens, and even manage accounts on other blockchains to access any functionality built elsewhere.\n\n# Prize Pool\n\nThe prize pool (98k USDT) will break down as follow:\n\n
\n\n### Leveraging EVM Extensions\n\n- 1st: 17k USDT\n\n- 2nd: 13k USDT\n\n- 3rd: 8k USDT\n\n
\n\n### Buidl on Evmos: Infrastructure & Toolings\n\n- 1st: 10k USDT\n\n- 2nd: 7k USDT\n\n- 3rd: 3k USDT\n\n
\n\n### Buidl on Evmos: DeFi\n\n- 1st: 10k USDT\n\n- 2nd: 7k USDT\n\n- 3rd: 3k USDT\n\n
\n\n### Buidl on Evmos: DAO & Community\n\n- 1st: 10k USDT\n\n- 2nd: 7k USDT\n\n- 3rd: 3k USDT\n\n(More prize pool may come from our ecosystem sponsors, TBA)\n\n# Chat and Get Support! \n\nBtw, don't miss out on the Idea Board tab! It's your go-to spot for valuable tips, idea sharing, team forming, advice and feedback, etc. Get inspired and inspire others as you embark on this amazing hackathon journey ✨\n*You need to click \"Register as a Hacker\" via the above button to post. \n\nIf you have any question, you can also leave it on the Idea Board page or contact DoraHacks user support account at Telegram @dorahacksofficial. \n\n# Key Dates of the hackathon\n\nThe idea is to have the opening ceremony around Consensus in April and allow project submission starting the next week in May for 3 weeks.\n\n- Opening Ceremony: April 24\n\n- Project Submission: April 24th to June 15th (Extended)\n\n- Workshops: Will lead two workshops (on EVM Extensions and Getting started on Evmos) - Dates TBA\n\n- Judge Voting: June 16th -June 27th\n\n- Grand Finale: June 28th\n\n# Judge Panel\n\nAll projects will be reviewed by the Core Evmos Contributors. Ecosystem partners may also help evaluate the project submissions. After the hackathon, projects can apply for our grants program. More detail on this will be provided as we get closer to the end of the hackathon.\n\n# Sponsor/ Ecosystem/VC/Launchpad Partners\n\n- Evmos encourages builders to utilize our ecosystem services to create applications. The partners will add additional prizes but utilizing our ecosystem partners will increase the breath of the project.\n\n# About Evmos\n\nEvmos is an EVM-compatible, IBC-enabled blockchain in the Cosmos ecosystem that’s designed for cross-chain dApp development.\n\nThe Evmos Core Development Team is on a mission to create and ship the foundational tools necessary for building the cross-chain applications of the future. With groundbreaking features like EVM Extensions, the Evmos SDK, and the Evmos dApp Store, Evmos gives developers the freedom to take advantage of IBC and connect their smart contracts to the Cosmos Ecosystem.\n\nThis groundbreaking technology frees developers from the confines of today’s siloed blockchains.\n\nThe future is cross-chain.\n\n# Developer Resources\n\nWe encourage all developers to join our Telegram Builder’s Group [Evmos Docs](https://docs.evmos.org/)\n\n- [Evmos Github](https://github.com/evmos/evmos)\n\n- [Evmos YouTube Channel](https://www.youtube.com/@Evmos)\n\n- [Evmos Wallet Integration](https://academy.evmos.org/developers/guides/wallet-integration)\n\n- [Evmos API (testnet)](https://api.evmos.dev/)\n\n- [Testnet Faucet](https://faucet.evmos.dev/)\n\n- [Mainnet Faucet](https://stakely.io/en/faucet/evmos-evm)\n\n- [Telegram Builder Group](https://t.me/EvmosBuilders)\n\n- [BUIDL on Evmos: Testnet Guide](https://academy.evmos.org/articles/intermediate/developing-on-evmos-testnet)","onboardingCompleted":false,"registerFormUrl":null,"preRegisterTime":0,"publicContactHackerHandle":null,"hackersCount":218,"winnerAnnounced":false,"teamCount":0,"title":"[EVMOS] EVM Extensions Hackathon","uname":"EVM","imageUrl":"https://cdn.dorahacks.io/static/files/188754c19f2282846158265493f8a36e.jpeg","originUrl":null,"startTime":1682946000,"endTime":1687096800,"timezone":"UTC","city":"Virtual","visible":true,"approvalStatus":6,"state":0,"voteUrl":null,"voteMechanism":null,"bonusPrice":98000,"bonusMechanism":"xx","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":180,"name":"Leverage EVM Extensions on the Evmos Testnet","judgingCriteria":"","weight":0},"bountyObjs":[]}],"chain":[],"chainList":[],"appliedGrant":false,"acceptRewards":false,"owner":86889,"ownerInfo":{"nickname":"kelmanke","username":"U_956dc0ca5e66ea","avatar":"https://cdn.dorahacks.io/static/files/18e003d96b10f47ebfd62ba41ff821e8.png"},"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":[],"otherInfrastructures":[],"lastEditor":{"id":86889,"username":"U_956dc0ca5e66ea","date":1685283344000},"upvoted":false,"followed":false,"upvoters":{"count":0,"list":[]},"kycStatus":0,"ideas":[],"name":"Winmos","techniqueField":"","source":"Independent","vision":"No-loss gaming dapps on Evmos","projectDescription":"**Winmos** is a no loss lottery hosted on Evmos Testnet that gathers user staking rewards and picks 1 winner every 24 hours.\n\n## Overview\n\n**Winmos** is a no loss lottery implementation on Evmos utilizing EVM extensions to stake \nand distribute rewards. It utilizes the contract balance to ensure on-chain funds are locked so\nthe lottery has a fair winner each time inflation rewards are distributed.\n\n### EVM Extensions\n\nThe addition of `Staking.sol` and `Distribution.sol` allow for smart contracts to \nexecute Cosmos transactions without leaving the EVM environment. This allows **Winmos** to\nonboard new users to the EVM and Evmos by providing a no loss lottery system similar to\nPoolTogether on Ethereum.\n\n## Smart Contract Design\n\n### Approach\n\nAfter watching the workshops and reviewing the example code from the\n[extensions repo](https://github.com/evmos/extensions/tree/main/examples/no-loss-lottery)\n**Winmos** expanded the concept by creating a fully automated client, winner selection\nand withdrawing systems. Users can safely deposit and withdraw from the contract as well as\nenter and exit the lottery all through EVM transaction that ensure their funds are tracked\nby the contract state. A winner is picked based on the number of EVMOS they have staked\nensuring higher odds to users that have pledged more. A random number to shuffle participants\nand pick a winning range is generated using the \n[DIAOracle](https://docs.diadata.org/documentation/oracle-documentation/randomness-oracle)\n\n### Limitations\n\n- The maximum of 7 unbonding delegations that is allowed on the Cosmos SDK could limit\nhow often users can make small undelegations.\n\n- Ethereum allows for depositing into a contract and using that same balance in a follow-up\noperation. This doesn't work on Evmos so an additional `Deposit` transaction is required.\n\n### Future improvements\n\nBy mainnet we want to include additional features:\n - weekly and monthly draws with more winners (top 3 for weekly, top 5 for monthly).\n- no loss dice game.\n- no loss coin price prediction game using Oracle service for real time prices.","teamDescription":"Winmos is an experienced team of fullstack developers with 5 years of experience in Web2 SaaS plaftorm development. We have recently shifted our focus from web2 and started learning and creating new web3 projects.","githubPage":"https://github.com/kelmanke/winmos","githubVerify":0,"demoLink":"https://winmos.xyz/","demoVideo":"https://vimeo.com/manage/videos/830977632","ownerTitle":null,"ownerIntroduction":null,"twitterVerified":false,"weibo":null,"nft":null,"scOwner":"","editTime":1685283344,"upvotes":"0.00","isRecruitingEnabled":false,"recruitingInfo":"","recruitingLink":null,"twitter":null,"facebook":null,"instagram":null,"socialTelegram":null,"socialDiscord":null,"socialLinks":[],"showedFunding":false,"agentStatus":null,"createdAt":"2023-05-28T21:18:51.295531+08:00","updatedAt":"2023-05-29T18:21:38.554332+08:00","milestoneEditor":86889,"path":"/buidl/5979","techField":"","techFieldAry":[],"techTree":[0],"tags":[],"otherTags":[],"origin":"Independent","intro":"**Winmos** is a no loss lottery hosted on Evmos Testnet that gathers user staking rewards and picks 1 winner every 24 hours.\n\n## Overview\n\n**Winmos** is a no loss lottery implementation on Evmos utilizing EVM extensions to stake \nand distribute rewards. It utilizes the contract balance to ensure on-chain funds are locked so\nthe lottery has a fair winner each time inflation rewards are distributed.\n\n### EVM Extensions\n\nThe addition of `Staking.sol` and `Distribution.sol` allow for smart contracts to \nexecute Cosmos transactions without leaving the EVM environment. This allows **Winmos** to\nonboard new users to the EVM and Evmos by providing a no loss lottery system similar to\nPoolTogether on Ethereum.\n\n## Smart Contract Design\n\n### Approach\n\nAfter watching the workshops and reviewing the example code from the\n[extensions repo](https://github.com/evmos/extensions/tree/main/examples/no-loss-lottery)\n**Winmos** expanded the concept by creating a fully automated client, winner selection\nand withdrawing systems. Users can safely deposit and withdraw from the contract as well as\nenter and exit the lottery all through EVM transaction that ensure their funds are tracked\nby the contract state. A winner is picked based on the number of EVMOS they have staked\nensuring higher odds to users that have pledged more. A random number to shuffle participants\nand pick a winning range is generated using the \n[DIAOracle](https://docs.diadata.org/documentation/oracle-documentation/randomness-oracle)\n\n### Limitations\n\n- The maximum of 7 unbonding delegations that is allowed on the Cosmos SDK could limit\nhow often users can make small undelegations.\n\n- Ethereum allows for depositing into a contract and using that same balance in a follow-up\noperation. This doesn't work on Evmos so an additional `Deposit` transaction is required.\n\n### Future improvements\n\nBy mainnet we want to include additional features:\n - weekly and monthly draws with more winners (top 3 for weekly, top 5 for monthly).\n- no loss dice game.\n- no loss coin price prediction game using Oracle service for real time prices.","images":["https://cdn.dorahacks.io/static/files/18862580d69891b07c6e8d045cc98c4e.png"],"team":"Winmos is an experienced team of fullstack developers with 5 years of experience in Web2 SaaS plaftorm development. 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