The Blockchain File Integrity System is designed to ensure secure file management, authentication, and verification using blockchain technology. It integrates an uploader module for secure submission, encryption, and storage of files along with a verifier module to check file integrity. The system generates unique cryptographic hashes for uploaded files, stores metadata and hashes on the blockchain, and allows users to verify files against the blockchain record to detect tampering. By combining encryption techniques, blockchain immutability, and secure storage mechanisms, the system addresses the limitations of conventional file storage systems. It provides a user-friendly interface, notification support, and audit trails for transparency. This solution enhances trust, accountability, and reliability in digital document handling, making it applicable for sensitive industries such as healthcare, legal, finance, and academic sectors. The system also reduces risks of unauthorized modifications and ensures compliance with data integrity standards.

Keywords: Blockchain, File Integrity, Encryption, Verification, Secure Storage, Metadata, Hashing, Uploader Module, Verifier Module.