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Chainlink-based Proof of Reserve oracle for on-chain asset verification using real-time data feeds

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🔗 Chainlink Proof of Reserve Oracle

Solidity Chainlink Hardhat

A smart contract-based Proof of Reserve (PoR) system that verifies asset backing on-chain using Chainlink oracles, enabling transparent and trustless validation for DeFi applications.


📌 Overview

Proof of Reserve (PoR) ensures that digital assets are backed by real-world reserves.
This project implements a decentralized oracle-based system that fetches off-chain reserve data and verifies it on-chain.

The solution enhances transparency, trust, and security for stablecoins, tokenized assets, and DeFi protocols.


⚙️ Key Features

  • On-chain reserve verification using smart contracts
  • Integration with Chainlink oracle network
  • Secure off-chain data retrieval
  • Transparent and tamper-resistant validation
  • Designed for DeFi and asset-backed token use cases

🏗️ Architecture

External Data Source (Reserves)
            ↓
     Chainlink Oracle
            ↓
 Proof of Reserve Contract
            ↓
   DeFi / DApps

🧰 Tech Stack

  • Solidity — Smart contract development
  • Hardhat — Development & testing framework
  • Node.js — Automation scripts
  • Ethers.js / Web3.js — Blockchain interaction
  • Chainlink — Oracle infrastructure

📁 Project Structure

contracts/        → Smart contracts
scripts/          → Deployment scripts
test/             → Test cases
hardhat.config.js → Configuration

🚀 Getting Started

1. Clone the repository

git clone https://github.com/Adithya17-star/chainlink-por-oracle.git
cd chainlink-por-oracle

2. Install dependencies

npm install

3. Compile contracts

npx hardhat compile

4. Run tests

npx hardhat test

5. Deploy contract

npx hardhat run scripts/deploy.js --network sepolia

💡 Use Cases

  • Stablecoin reserve verification
  • Tokenized asset validation
  • DeFi collateral monitoring
  • Custodial transparency systems

📚 Key Learnings

  • Smart contract development with Solidity
  • Oracle integration using Chainlink
  • Secure off-chain data handling
  • Designing decentralized verification systems

🔮 Future Improvements

  • Multi-source oracle aggregation
  • Automated reserve monitoring
  • Frontend dashboard for visualization
  • Multi-chain support

📜 License

MIT License

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Chainlink-based Proof of Reserve oracle for on-chain asset verification using real-time data feeds

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