Blockchain Beyond Cryptocurrency: Applications in Supply Chains and Digital Identity

Blockchain technology first became popular through cryptocurrencies such as Bitcoin, but its capabilities extend far beyond digital currency. Blockchain provides a decentralized, tamper-resistant and transparent data management system that can improve trust, security and efficiency across different industries. Two of the most promising non-financial applications of blockchain are supply chain management and digital identity systems. Traditional supply chains often suffer from fraud, counterfeit goods, poor traceability and lack of transparency, whereas centralized identity systems face challenges such as identity theft, privacy loss and lack of access for underserved populations. This paper explores the architecture of blockchain, examines its major characteristics, and reviews research studies that demonstrate how blockchain can strengthen supply chains and digital identity frameworks. The analysis highlights both opportunities and challenges, and presents future directions for adopting blockchain solutions at scale.