Blockchain Mastery 2026: Zero to Hero | Complete Web3 & dApps Course (Hindi/Urdu) | The Techzeen - Blockchain Tutorial #04: How Blockchain Works? | Blocks, Hashes & Mining Explained 2025

Ever wondered how Blockchain actually works? ⚡ In this video, I’ll explain Blocks, Hashes, Mining & Tamper-proof mechanism in the simplest way possible — perfect for beginners stepping into the world of Blockchain, Web3 & Crypto. 🚀 You will discover: ✅ What is Blockchain & why it is tamper-proof ✅ What are Blocks & how they store data (Transactions + Timestamp + Previous Hash) ✅ What is a Hash & how it secures Blockchain data (SHA-256 explained simply) ✅ Why Blockchain is immutable & decentralized ✅ What is Mining & how miners validate transactions in Bitcoin/Proof of Work ✅ Real-world examples of Blockchain security & transparency 📌 Why this matters in 2025: – Blockchain is the backbone of Web3, Crypto, NFTs & DeFi – Secure, transparent, and decentralized future of finance & technology – High-demand skill for Blockchain Developers & Crypto Experts – Career scope: Mining, Smart Contracts, Web3 dApps & AI integration 🎯 This is part of the Complete Blockchain Mastery Playlist (Zero → Hero) only on The Techzeen. ⭐ Don’t just watch… Understand how Blockchain really works in 2025! 📢 Subscribe to The Techzeen and Become a Blockchain Expert 🔔 📘 Blockchain Lectures (GitHub Notes): https://github.com/farzeen-ali/Blockchain-Lectures 📺 Blockchain Full Course 2025 (Playlist): https://www.youtube.com/playlist?list=PL5OhSdfH4uDvKfoYd1GRf5KCu7kvgYSw_ 🎓 Cyber Security Full Course 2025: https://www.youtube.com/playlist?list=PL5OhSdfH4uDuCcQ-NZ4lYa3S07FQTFtrY ⚙️ DevOps Tutorial 2025: https://www.youtube.com/playlist?list=PL5OhSdfH4uDsyUM02ZHl2mOYBpihCYsml #BlockchainTutorial #HowBlockchainWorks #BlockchainExplained #BlockchainForBeginners #Blockchain2025 #Web3 #Crypto #NFT #DeFi #SmartContracts #BlockchainMining #TheTechzeen #BlockchainCourse #Blocks #Hashing #Mining #Cryptocurrency #Cryptography