Blockchain KYC (Know Your Customer) solutions improve identity verification by storing user data securely and immutably on a decentralized ledger. It enables institutions to access verified identity records with user permission, reducing duplication, fraud, and onboarding times. Blockchain KYC ensures data integrity, enhances compliance, and protects user privacy through cryptographic encryption and selective disclosure. By automating verification with smart contracts, banks and fintech firms streamline compliance workflows. This decentralized model transforms traditional KYC processes, reducing costs while providing a more secure and efficient framework for identity management.