Registration of Land and Building Certificate Ownership using Blockchain Technology

Abstract

Currently, the certificate ownership system in Indonesia is still done manually. The system has weaknesses and loopholes that can be exploited by irresponsible parties. Some examples of problems that may arise are the loss of physical certificates. To overcome this, a land and building certificate ownership recording system is built using blockchain technology. The development of this system aims to reduce the problems that arose in the manual system. The use of blockchain technology is intended to maintain data integrity. The system utilizes one of the main properties of blockchain technology, the anti-tamper properties that maintain data integrity from parties who try to tamper with stored data. The system is decentralized by involving several peers who run the blockchain network. The technology used to build the blockchain network is Hyperledger Fabric. This is a permissioned blockchain, using a consensus method that does not require large computing resources. The developed system facilitates basic processes in the form of certificate ownership transfer transactions through the functional requirements. The system also improves data transparency by providing various information retrieval features. The developed system is tested with various tests to ensure that the functional and non-functional requirements are met. The system built can be used as a system for recording ownership of land and building certificates, as it is able to record ownership of certificates without problems and facilitates checking and the failsafe methods and can reduce problems in the previous system, for example loss of certificates.