Smart Land Registration Using BlockChain

Abstract

Land administration systems play a critical role for a wide range of stakeholders involved in land management. However, a significant issue affecting these systems is the accuracy of their stored data, which often fails to align with the actual legal, spatial, and topographic reality. The main causes of data discrepancies in land administration systems stem from challenges related to data collection and compilation, data processing, and data misuse. This paper addresses the challenges of data tampering, lengthy transaction registration times, and the potential for double spending, all contributing to inaccuracies within land administration systems. Our research explores the potential of blockchain technology as a solution, specifically distributed ledger technology, to tackle these problems. We propose a Solidity programming language-based smart contract that addresses specific use cases in land administration systems, such as ownership sharing, partial ownership transfers, real estate splitting or merging, and the imposition of restrictions on real estate trading. The proposed smart contract serves as an implementation of a programming interface that combines elements from ERC-20 and ERC-721 token standards, catering to the specific needs of land administration systems.