KYCify - KYC Chain Verification

Decentralized KYC Verification System built with Solidity, React.js, IPFS, and MetaMask/Firebase. Enables secure, role-based interaction between Customers, Banks, and Admins, ensuring privacy, transparency, and immutable document verification on the blockchain.

Secure, transparent, decentralized KYC verification system

Project Overview

This project implements a Know Your Customer (KYC) verification system using blockchain technology to create a secure, transparent, and decentralized identity verification platform for banks and their customers.

Key Features

• Secure admin portal for bank approval and oversight
• Bank registration and customer verification system
• Blockchain-based document storage and verification
• Transparent audit trail for all KYC processes
• IPFS-based document storage with cryptographic hashing
• Smart contract-based workflow management

System Flow

1. Portal Entry Point

• Central hub for all user types (Banks, Customers, Admins)
• Role-based navigation to appropriate portals
• Wallet connection initiation

2. Customer Flow

Registration

• Customers create accounts with document details
• Wallet connection establishes blockchain identity

Login

• Secure authentication for returning customers

Document Submission

• Upload KYC documents to IPFS
• Select bank for verification
• Track submission status

Verification History

• View all submitted documents with IPFS hashes
• Check verification status with banks
• Access historical records

3. Bank Flow

Registration

• Banks register with admin details
• Submitted for admin approval

Login

• Secure authentication for approved banks

Dashboard

• Manage customer verification requests
• View bank details and status

KYC Request Processing

• Review customer documents
• Approve/reject requests
• Add verification remarks

4. Admin Flow

Login

• Secure admin authentication
• Wallet connection required

Dashboard

• Manage bank approval requests
• Monitor system activity

Bank Approval

• Review bank registration details
• Approve/deny applications
• View wallet associations

Technical Implementation

Blockchain Components

• Solidity smart contracts manage:
  • Role-based access control
  • Verification workflows
  • Immutable record keeping

IPFS Integration

• Documents stored on IPFS with cryptographic hashing
• Tamper-proof document verification
• Decentralized storage solution

Workflow Process

1. Bank Onboarding

   • Bank registers → Admin approves → Bank becomes active

2. Customer KYC Submission

   • Customer registers → Uploads documents → Selects bank → Documents stored on IPFS

3. Bank Verification

   • Bank reviews documents → Approves/rejects → Status recorded on blockchain

4. Completion

   • Customer notified of approval
   • Permanent record created on blockchain

Getting Started

1. Install MetaMask or compatible wallet
2. Connect wallet to the application
3. Register as appropriate (admin/bank/customer)
4. Follow the on-screen instructions for your role

Security Features

• All sensitive operations require wallet signatures
• Documents encrypted and stored on IPFS
• Immutable record of all verification activities
• Role-based access control via smart contracts
• Cryptographic proof of document integrity

This system provides a secure, transparent alternative to traditional KYC processes by leveraging blockchain technology for identity verification.