Design and Implementation of a Blockchain-Driven Land Registry System Using Smart Contracts

Abstract

Land registration is a fundamental function of governance, directly impacting economic development, social stability, and individual wealth security. Yet, despite its critical importance, traditional land registry systems across the world continue to suffer from persistent and costly problems. These include document forgery, unauthorized alterations by corrupt officials, double spending (i.e., selling the same land parcel to multiple buyers), fraudulent title transfers, loss of physical records due to fire or natural disasters, and bureaucratic inefficiency that results in years-long delays for property transfers. According to the World Bank, nearly 70% of the world's population lacks access to reliable land titles, and land disputes account for a significant percentage of civil litigation globally. To address these systemic vulnerabilities, this paper proposes a decentralized land registry system built on blockchain technology. Blockchain—a distributed, immutable, and transparent digital ledger—offers unique properties that directly counter the weaknesses of centralized land registries. The proposed system leverages three key blockchain features: (1) decentralization, which eliminates single points of failure and removes the need for trust in any central authority; (2) smart contracts, which are self-executing agreements that automate land transfers, verify ownership conditions, and release payments only when all predefined criteria are met; and (3) cryptographic hashing, which creates unique digital fingerprints for land documents (such as sale deeds, survey maps, and mutation records), making any tampering instantly detectable.