So far, we've built the core of our blockchain and implemented basic transactions. But a blockchain without security is like a safe without a lock anyone can tamper with it. In this post, we’re going...

In a real blockchain, miners don't work for free. They spend computational power solving puzzles, and in return, they get rewarded with newly minted coins. This is the economic engine that keeps the...

So far, your blockchain runs on a single node — one machine holding all the blocks and transactions. But a real blockchain (like Bitcoin or Ethereum) runs on thousands of nodes, each keeping a copy...

In last tutorial we built a functioning block chain. Now we are going to improve it. Did you remember. Our primary goal was to store transactions in an immutable ledger. So here lets see how we can...

If you are into Web3 development, the term blockchain is not a new thing to you. In the last blog post of this series, I explained most of the core concepts behind how a blockchain works. Learning...

Imagine a world where strangers can exchange money, share data, or execute agreements without ever needing to trust a central authority. No banks, no intermediaries, no single point of failure yet...