In order to add a block to the Bitcoin blockchain, miners must solve a puzzle to demonstrate proof of work. What exactly is that puzzle?

Can Bitcoin really prevent fraud without a central authority? In this video, we break down the core mechanisms that make Bitcoin uncheatable—from blockchain immutability to Proof of Work and cryptographic signatures. Discover how Bitcoin enforces honesty…

Why does Bitcoin need miners? In this video, we break down the real reason behind mining—not just for earning new coins, but for securing the entire network. Discover how miners validate transactions, prevent double-spending, and protect Bitcoin from fraud…