Suno bhai, blockchain ek digital ledger hai jisme har transaction ka record block ban jaata hai, usme hash lag jaati hai, phir dusre blocks confirm karte hain! Isliye immutable kehte hain kyuki ek baar confirm ho gaya, toh usko pichle sare blocks change karna padega, jo nearly impossible hai! Main DApp bana raha hoon Bangalore mein, yaha har transaction ko trust karna padta hai bina bank ke... isiliye pata hai ki yeh "trustless" system kitni mehnat se secure kiya gaya hai!
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