Tamper Evident Inventory and Sales Recording System Using Chain-Based Data Integrity to Ensure Audit Reliability for Mashikketta Restaurant Main Branch

Abstract

This project created a web-based application called Tamper-Evident Inventory and Sales Recording System Using Chain-Based Data Integrity to Ensure Audit Reliability for Mashikketta Restaurant. The system was designed to address common problems in small restaurant operations, particularly the risk of unauthorized modification of sales and inventory records and the lack of reliable audit mechanisms in traditional point-of-sale systems. By improving record integrity and traceability, the system aims to support accurate reporting and strengthen accountability in daily business operations. The web-based application utilizes cryptographic hashing and chain-based data linking to ensure that each transaction record is securely connected to previous entries, making any form of data tampering detectable. Transaction histories are preserved instead of being overwritten to support auditing and review processes. The system includes role-based access control, secure user authentication, real-time inventory monitoring, basic sales analytics, and tamper-evident audit logs. It was developed using C# with the .NET framework, React.js for the user interface, and MySQL for database management, with password hashing and structured data logging implemented to enhance security.