Blockchain technology is often associated with Bitcoin and other cryptocurrencies, but its applications extend far beyond digital currencies. At its core, blockchain is a decentralized ledger that records transactions securely and transparently. Industries like supply chain management, real estate, and healthcare are exploring blockchain to enhance security, transparency, and efficiency. Smart contracts—self-executing contracts with predefined rules—are revolutionizing legal agreements by eliminating intermediaries. However, challenges such as scalability, energy consumption, and regulatory uncertainty must be addressed for widespread adoption.