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Vintara

Vintara is a revolutionary DeFi protocol built on Rootstock (RSK).

Problem Statement

Vintara is a revolutionary, comprehensive DeFi protocol built on Rootstock (RSK) - Bitcoin's longest-running and most secure sidechain. We enable users to earn native Bitcoin yield through multiple automated strategies while leveraging Bitcoin's unmatched security and stability. This is the first complete Bitcoin-native DeFi ecosystem that brings traditional DeFi primitives to the Bitcoin ecosystem.What Makes Vintara Revolutionary -Native Bitcoin Yield GenerationEarn yield directly in rBTC (Wrapped Bitcoin) - not synthetic tokensMultiple yield strategies: Lending, liquidity provision, yield farming, and automated market making.Dynamic yield rates that adjust based on real-time market conditions via PyTH Network oraclesCompound interest with automatic reinvestment for maximum returnsBitcoin's Security FoundationProtected by Bitcoin's hash power through Rootstock's merged mining100% Bitcoin security - inherits the most secure blockchain networkEconomic finality backed by Bitcoin's economic modelNo compromise on security - built on proven infrastructureComplete DeFi Ecosystem9 Core Smart Contracts deployed and tested on Rootstock TestnetFull-stack application with modern React frontendReal-time price feeds via Chainlink Network integrationFuture ENS support for human-readable addressesDAO governance with community-driven protocol managementTechnical Architecture & Innovation - Smart Contract Suite (9 Contracts)MockToken.sol - Test ERC20 token for developmentYieldVault.sol - Main vault for automated yield generation with dynamic ratesLendingProtocol.sol - Collateralized lending with health factors and liquidation protectionLiquidityPool.sol - AMM with yield generation and fee collection (0.3% trading fees)YieldFarming.sol - Staking rewards and farming mechanismsPriceOracle.sol - Multi-source price feeds with fallback mechanismsGovernance.sol - DAO governance with proposal and voting systemsChainlinkOracle.sol - Real-time price feeds integrationGraphIndexer.sol - Protocol analytics and data indexingAdvanced FeaturesDynamic Interest Rates: Adjust based on market volatility and utilizationHealth Factor System: Automated risk management with liquidation protectionMulti-source Price Feeds: Chainlink + PyTH Network for maximum reliabilityENS Integration: Human-readable addresses (e.g., "alice.vintara.eth")Emergency Pause: Circuit breakers for protocol protectionAccess Control: Role-based permissions for all critical functionsYield Generation Mechanisms - Primary Revenue SourcesTrading Fees: 0.3% fee collection from DEX tradesLending Interest: Earn from borrower interest paymentsStaking Rewards: VINT token distribution to stakersArbitrage Profits: MEV capture and redistributionCross-chain Yield: Bridge to other Bitcoin L2sDeployment Status & Readiness - āœ… Completed & DeployedSmart Contracts: All 9 contracts deployed on Rootstock TestnetFrontend: Complete application deployed on VercelTesting: Comprehensive unit and integration testsDocumentation: Complete setup and deployment guidesSecurity: Internal review completed, external audit plannedMock TOken - 0xa370fefb8e3c32645bf20885fb9020d9d01fdbc8 ChainLink Oracle - 0xc38d69d593229a0d11853b31394acf8d955dca5e GraphIndexer - 0xc89a1a228d894f6335b9bcc0c6cabd19159a1b32 PriceOracle - 0xbf08c62e99318962a2627ef5f438ca07dff3aa11 YieldVault - 0x4f6febf3ba832e8d9ba86ee6f6c641c809f304b4 Lending Protocol - 0xf2676d5013e59c28d060194190164cb0571c4094 Liquidity Pool - 0x324c91c047f8f4fd22418fa6254e281321f3fa3d YieldFarming - 0x078cf9a4b1e7b184d7dfcd8d082772ab164af9e1 Governance - 0x81d9fe2436a092387b9934e889a33663674c614e

Solution

Architecture Overview Vintara is built as a full-stack DeFi protocol with a sophisticated architecture that combines smart contracts, real-time data feeds, and a modern frontend. Here's the complete technical breakdown:Smart Contract Architecture : Core Technology StackSolidity 0.8.19+ with OpenZeppelin libraries for securityHardhat development environment with TypeScript supportEthers.js v6 for contract interactionsGas-optimized contracts with 200 optimization runs

Hackathon

ETHGlobal New Delhi

2025

Contributors