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3 articles for “Decentralized Finance (DeFi)”
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Smart Contract: A new buzz word for reliable decentralized network
Abstract: Blockchain technology has emerged as a foundational distributed-ledger architecture enabling decentralized, transparent, and tamper-resistant data management across diverse digital ecosystems. This paper presents an integrated review of blockchain fundamentals, consensus mechanisms, smart contract design, and real-world applications beyond cryptocurrencies. It discusses the evolution of smart contracts as automated, self-executing programs that remove intermediaries and ensure deterministic execution, while highlighting critical security vulnerabilities such as reentrancy, arithmetic overflows, and improper access …
Published in Journal of Open Source Developments · Vol. 13, Issue 1, 2026 Read article
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Blockchain Technology and Inclusive Financial Systems in the Global South
Abstract: This paper explores how blockchain technology can promote financial inclusivity by providing decentralized, transparent, and secure financial services, particularly in the Global South, where conventional banking systems are frequently insufficient. Through a blend of literature review and empirical analysis, we assess blockchain's role in expanding financial access, using case studies from several developing nations. Our results reveal a promising potential for blockchain to improve financial inclusion, although obstacles such as …
Published in International Journal of Mobile Computing Technology · Vol. 2, Issue 2, 2024 · pp. 17–23 Read article
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GSM Based OTP Security Locker Using Arduino
Abstract: This work presents a microcontroller-driven secure locker system that leverages GSM-based communication for dynamic user authentication. Unlike conventional locking mechanisms that depend on static credentials or physical keys, the proposed system utilizes a time-sensitive one-time password (OTP) transmitted to a pre- authorized mobile number. The authentication workflow is managed using an Arduino-based embedded platform integrated with a SIM A7670C GSM module. The system coordinates OTP generation, transmission, and validation in …
Published in Journal of Microcontroller Engineering and Applications · Vol. 13, Issue 2, 2026 Read article