What is Blockchain? A Simple Guide with Real-Life Example
Introduction : Blockchain is everywhere in 2025 – from Bitcoin to smart contracts and supply chains. But as a B.Tech student specializing in blockchain, I noticed many students still struggle to fully understand it. This blog post will explain what blockchain is , how it works, and give a real-life example to make it crystal clear. What is Blockchain? At its core, blockchain is a decentralized digital ledger that records transactions and stores data across multiple computers globally. Instead of one central database, blockchain creates a shared system where every participant (node) holds a copy of the data. > In simple words: Blockchain is like Google Sheets but public and super secure, where no one can change past records without everyone agreeing. How Does Blockchain Work? 1. Transaction is requested For example, Shobhit wants to send 1 Bitcoin to Suryansh. 2. Broadcast to Network The transaction is shared with thousands of computers (nodes) in the blockchain network. 3. Verifica...