DocVouch

Overview

The DocVouch allows users to upload documents to IPFS (InterPlanetary File System) for storage while ensuring the document's integrity by storing a unique keccak256 hash of the document on the Ethereum blockchain. The document itself is stored off-chain, but its hash is securely anchored on-chain to ensure immutability and authenticity.

Key Features:

• Upload documents to IPFS to generate a hash.
• Convert the IPFS hash to bytes32 format using keccak256 and store it on the blockchain.
• Lightweight, cost-effective, and efficient use of blockchain for document verification.

Video Demonstration:

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Docvouch.online-video-cutter.com.mp4

User Flow Diagram:

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Table of Contents

1. Features
2. Architecture
3. Installation

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Features

• Document Upload: Upload any document (PDF, Word, etc.) to IPFS.
• IPFS Hash Generation: Each uploaded document generates a unique IPFS hash (CID).
• Blockchain Storage: Convert the IPFS hash to a keccak256 bytes32 hash and store it on the Ethereum blockchain.
• Secure & Immutable: The blockchain ensures that once the hash is stored, it cannot be altered, maintaining the integrity of the document.

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Architecture

This project consists of two primary components:

1. IPFS Storage (Off-Chain):

   • Documents are uploaded to IPFS, a decentralized file storage system.
   • IPFS returns a content identifier (CID) for each file uploaded, which serves as the unique hash.

2. Ethereum Blockchain (On-Chain):

   • The IPFS hash is converted to a keccak256 bytes32 hash.
   • The hash is stored on the Ethereum blockchain using a smart contract, making it immutable and verifiable.

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Installation

Prerequisites

To run this project locally, you'll need to have the following installed:

• React: To run the front-end.
• Remix: For Ethereum smart contract development.
• IPFS Client: To interact with the IPFS network.
• Ethereum Wallet: For interacting with the Ethereum blockchain (e.g., MetaMask).

Steps

1. Clone the repository:

   git clone(https://github.com/Rabeet8/DocVouch.git)
   cd DocVouch
   

2. Install Dependencies:

npm install