Secured Land Chain: A Blockchain Based Land Registration System Leveraging Cryptographic Hashing, Smart Contracts and Consensus Alogorithms

Abstract

The system of land registration in India has suffered from inefficiency issues like bureaucracy, lengthy procedures, and lack of validation throughout. Despite Telangana State completing the digitalization process, the information still lies in a centralized server that could easily be manipulated by someone with the right credentials. Our solution is referred to as Sovereign Ledger – a web portal application platform where each time the transaction takes place on the ledger through a SHA-256 block-chain thus making it possible to verify the history of record independently. There are two portals within our solution platform. The government officials gain access to the platform through a QR code scan on their mobile phone. There is no need for entering any password into the computer terminal. On the other hand, citizens use this platform to register their land, appoint an officer who is responsible for the transfer of land, monitor the progress of transactions, lodge complaints in case there are any issues, check the properties registered in the area, and estimate taxes. Officers on their part will attend to every request made by citizens, seek clarifications, register the transaction on the block-chain, and decline if need arises stating the reason.

Introduction

The text discusses the challenges of traditional land registration systems in India, which rely heavily on paper documents and are vulnerable to loss, tampering, and inefficiency. Although digital systems like TS-Dharani in Telangana improved accessibility, they still face risks if databases are altered secretly. Blockchain technology addresses this issue by creating an immutable and auditable ledger where any modification becomes detectable through hash verification.

To solve these problems, the authors developed Sovereign Ledger, a blockchain-based land registration platform built using Flask, MySQL, and a proprietary SHA-256 blockchain. The system provides both an administrator portal and a citizen portal, enabling users to complete property registration, approvals, and deed generation entirely online. Unlike earlier blockchain land registry experiments in countries such as Honduras, Sweden, and Andhra Pradesh, this platform emphasizes direct citizen interaction and secure workflows.

The architecture combines MySQL for efficient querying and blockchain for tamper-proof storage. The application is divided into modular blueprints for maintainability, with key layers including the blockchain layer, database layer, and application layer. The system also introduces QR-based administrator authentication, where officials log in by scanning a QR code with their phone, reducing risks such as keylogging and unauthorized access.

Conclusion

The aim we set out for ourselves all along was to produce a functional system rather than one that was merely meant as a showcase project that would stop once the blockchain process has been accomplished. Everything is handled by the Sovereign Ledger, from the recording of a property into the blockchain system to when a citizen can access his or her deed with hashes that can be verified by him or herself. In the practical test we conducted, our three key components, which were the QR login system, handshake system, and blockchain system, lived up to their promise, with the hashes remaining undamaged and the QR system proving to be very quick so as to feel instantaneous, among other things. There are also things that we know about that are lacking. At the moment, our application uses passwords in plain text format, which may work for our prototype but definitely not in a real application. Our blockchain rebuilds itself using data from MySQL whenever we start our application, and hence any corruption in the data means a corrupt blockchain – we need some method to store the blockchain on hard drive. Coming to our next three features – these include bcrypt hashing to protect our passwords, a layer of Aadhaar for verifying citizens’ identity, and a PWA version of our citizen portal. Here is the crux of our argument – in Telangana, where many landholders lack a computer, a phone app is crucial.

References

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Copyright

Copyright © 2026 Syed Arif Uddin, Syed Nabeel Jameel, Mohammed Jeelani Junaidi, Mrs. Deepthi Joshi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.