Muhammad Rasyid Redha Ansori

Land administration in Nigeria faces significant challenges including document inconsistencies, opaque verification procedures, slow processing times, and administrative malpractice linked to centralized systems. BERBLOM proposes a blockchain-enabled land ownership management system that tokenizes land parcels as ERC-4907 assets and stores documents in IPFS to enhance data integrity. The system supports government plot allocation, peer-to-peer property transfers, and automated on-chain leasing with ownership reversion upon expiration. Operating on a permissioned Hyperledger Besu network using QBFT consensus, experiments show stable throughput and manageable latency as validator nodes scale from 4 to 32. While human-driven corruption cannot be fully eliminated, the prototype demonstrates how blockchain-based registries reduce opportunities for hidden technical manipulation and improve on-chain accountability. Post-registration operations like transfers and leasing execute without intermediaries in seconds, though initial registration remains dependent on government approvals.

PureRx is an innovative blockchain-based prescription management system designed to overcome the limitations of traditional paper prescriptions, including medication errors, fraud, and inefficiencies in tracking patient records. By leveraging Non-Fungible Tokens (NFTs) and batch minting, PureRx enables efficient, secure, and patient-centric control of prescription data. Patients maintain ownership of their medical records, while healthcare providers and pharmacies benefit from transparent and immutable prescription workflows. Experimental evaluation shows that PureRx improves operational efficiency by 37.18% in initial cycles, increasing to 51% in subsequent cycles compared to existing systems, while reducing costs by 46.76% in high-volume scenarios. Security analysis confirmed that no critical vulnerabilities were found and that all prescription issuance and claiming events are tamper-resistant and auditable on-chain. By combining scalability, transparency, and patient empowerment, PureRx demonstrates the potential of blockchain to transform prescription management in modern healthcare systems.

This study explores the versatile applications of blockchain technology, particularly within loyalty program frameworks, addressing challenges faced by traditional loyalty programs in trust, transparency, operational efficiency, and potential issues like double-spending and fraudulent activities. The focus is on designing a loyalty program framework and selecting suitable ERC721 libraries for batch minting, involving a meticulous evaluation of gas usage across different libraries for various scenarios. The proposed loyalty program architecture introduces the Subscription model, utilizing ERC721A, ERC721G, and ERC721Psi for batch minting, along with ERC20 for comprehensive token functionality. Incorporating SoulBound Tokens (SBTs) enhances security, preventing unauthorized transfers and potential rule violations, such as the unauthorized transfer of vouchers. IPFS facilitates off-chain storage of subscription badges for efficiency. The gas comparative analysis highlights associated costs, revealing potential advantages and areas for improvement. Future work includes further smart contract optimization and the development of a decentralized application (DApp), extending the practical implications of the proposed loyalty program framework.

Preventive measures to stop copyright infringement are yet to be implemented on current decentralized music-sharing platforms. There is no mechanism to reject modified audio before they go online, so some decentralized music platforms become places full of pirated audio files. To address this problem, a perceptual hash-based audio detection method for copyright protection in decentralized music sharing was proposed. Chromaprint, an open-source audio fingerprint program, generates a hash value to detect copyright infringement. To assess the perceptual hash technique's robustness, Chromaprint generates a hash value from an audio file that can be modified with several signal processing attacks. The results of the detection system show that Chromaprint is very effective at spotting copyright infringement, with an average match rate of 92.64%. Deployed using a public Ethereum blockchain test network, the execution time from hashing to uploading to the IPFS distributed storage is only 616.3 ms.

Electricity is vital for numerous aspects of human existence, including the operation of electronic devices and the maintenance of vital infrastructure. Even minor electronic devices and essential infrastructures cease functioning without electricity. The industrial and manufacturing sectors depend on a consistent and reliable energy supply because any mismatch between supply and demand can result in significant financial losses. Therefore, a solution is required to address the imbalance between energy supply and demand, particularly in the industrial sector. This study proposes a blockchain-based smart contract for energy auctions that will provide a safe and secure auction system with transparent and low maintenance costs referred to as gas costs, to enable industries to efficiently acquire energy from an energy supplier. The proposed smart contract is secure, effective, and user-friendly.

This work proposes smart auto mining (SAM) for resource-efficient mining in a blockchain network. The SAM algorithm stops the miners when there is zero pending transaction and starts the miner when there is at least one transaction sent into the network. The miner listens to the network to identify when a transaction has been made by a node. The model does not need any instruction to start mining when there is a pending transaction. The results show that a private Ethereum network produced over 300% more blocks in a 12-h period with 599,950 transactions compared to when SAM is applied. The proposed algorithm is also able to reduce the storage used by the chaindata by 14%. The overhead of mining is decreased by reducing the production of empty blocks in the network which saves energy, storage space, network bandwidth and computational complexity.