Supply Chain Management (SCM) is critical for the effective supply of goods and services, but with the emergence of the digital age and emerging technologies, it is faced with challenges like transparency deficit, inefficiency, and susceptibility to fraud. This work aims to explore the use of Blockchain technology in SCM for security, traceability, transparency, and operational enhancement. A systematic literature review was employed to examine existing studies on blockchain adoption in SCM, and a blockchain-based smart contract model was developed using Ethereum and Solidity to demonstrate its applicability. Results show that blockchain makes processes smoother, provides real-time data visibility and minimizes fraud risks. These findings show that blockchain can revolutionize SCM, with scalable solutions for resilient, transparent and stakeholder-aligned supply chains.