Blockchain-Based Real Estate Contract Authentication System for the Ejar Platform

The present Ejar platform for real estate contract management encounters problems with trust, security, and authenticity of records, which result in disputes and fraudulent activities. This work introduces a Blockchain-Based Real Estate Contract Authentication System to address these issues through tamper-proof, transparent, and verifiable contract management. The system integrates blockchain’s immutable features with decentralized consensus mechanisms into Ejar to enable secure contract registration, validation, and retrieval. The proposed system is built on smart contracts and includes property ID-based search functionality and graphical user interfaces (GUIs) for property management and transaction confirmation. The implementation utilizes a private Ethereum blockchain, Solidity smart contracts, and a web-based user interface. Experimental results demonstrate that the system prevents unauthorized modifications, enables rapid verification of property and contract information, and supports efficient search and retrieval operations, thereby enhancing trust and operational efficiency in real estate transactions.