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How Does Blockchain Actually Work? Step-by-Step with Real-World Use Case

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Introduction : Ever wondered how Bitcoin or Ethereum actually process your transactions? As a blockchain student, I meet many who understand "what is blockchain" but get stuck on how it really works behind the scenes. In this blog, we will walk through blockchain's entire process step-by-step — from a simple transaction to how it becomes a block — and apply this knowledge to a real-world situation! How Blockchain Works: The Journey of a Transaction Step 1: Shivam Sends Bitcoin to Vikash Let’s say Shivam wants to send 1 Bitcoin to Vikash. She creates this transaction using her digital wallet. Step 2: The Network Gets Involved Her transaction is broadcast to a global network of thousands of nodes (computers). Step 3: Miners & Validators Check the Transaction The network nodes work together to verify the transaction. They check: Does Shivam really have 1 Bitcoin? Is the digital signature valid? Step 4: Creating a Block Once validated, Shivam’s transaction is grouped with...
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What is Blockchain? A Simple Guide with Real-Life Example

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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...
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