ArbiRupee

ArbiRupee is a next-generation fiat-to-DeFi gateway built on Arbitrum that simplifies the on-ramp process for Indian users. Rather than navigating complex exchanges, fees, and delays, users can deposit Indian Rupees (INR) and instantly mint arbINR — India's digital rupee on the Arbitrum blockchain. ArbiRupee serves as the seamless bridge that unlocks India's massive economy for the global on-chain world.

How It Works

• Frontend (Next.js & React):

  • A clean, intuitive dashboard that looks and feels like a top-tier fintech app.

  • Secure wallet connection flow (MetaMask).

  • Simple interfaces for Deposit, Withdraw, and Transfer.

  • Real-time display of arbINR balance and transaction history using Wagmi & Viem.

• Backend (Simulated Fiat Gateway):

  • A simulated backend layer that validates user deposit requests (for hackathon purposes).

  • Secure communication with smart contracts to authorize arbINR token minting.

  • Designed for replacement with a real, regulated payment partner API post-hackathon.

• Smart Contracts (Solidity on Arbitrum):

  • arbINR.sol: An OpenZeppelin-based ERC-20 token contract representing the 1:1 backed digital Rupee.

  • Minter.sol: A permissioned contract that exclusively controls minting of new arbINR tokens, ensuring secure supply management.

• DeFi Integration Layer:

  • Seamless connection to deep liquidity sources on Arbitrum, like Uniswap.

  • Enables users to instantly swap arbINR for other tokens like USDC or ETH directly within the ArbiRupee interface.

Core Features (MVP)

✅ Direct INR On-Ramp — Users can seamlessly deposit (simulated) INR and receive arbINR on Arbitrum.
✅ Instant arbINR Minting — The core smart contracts for minting the digital Rupee are live and functional.
✅ Professional User Dashboard — A fully designed UI to manage balances and access DeFi opportunities.
✅ Seamless Swap Functionality — The architecture allows users to swap arbINR for other tokens through Arbitrum's DeFi ecosystem.
✅ Arbitrum Sepolia Deployment — The entire smart contract system is deployed and verified on the Arbitrum testnet.

Future Roadmap

🔗 Real-World Integration:

• Fiat Partners: Integrate with licensed payment aggregators in India to enable real UPI and bank transfers.

• Full Off-Ramp: Build withdrawal capabilities for users to convert arbINR back to INR in their bank accounts.

• dApp Partnerships: Position ArbiRupee as the default on-ramp for other Arbitrum-based applications targeting the Indian market.
  

📊 User-Facing Features:

• Proof of Reserve Dashboard: A real-time, on-chain dashboard showing that every arbINR is fully backed by an equivalent amount of INR.

• Advanced Analytics: Historical charts of user activity and rewards earned.

🛡️ Security & Trust:

• Full Security Audits: Conduct multiple, independent security audits of all smart contracts before mainnet launch.

• Regulatory Sandbox: Engage with regulators and apply to programs like the RBI's sandbox to demonstrate our compliant model.

Why ArbiRupee?

• Direct-to-DeFi Access: Unlike traditional exchanges, we land users and their funds directly on Arbitrum, ready for immediate use in DeFi.

• Superior User Experience: We eliminate multiple confusing steps and provide a single, intuitive application.

• Ecosystem Building: By creating arbINR, we're building a foundational liquidity primitive that can make Arbitrum the natural home for the Indian market.

• Radical Cost Reduction: We eliminate high withdrawal fees and hidden currency conversion costs that plague existing solutions.