Understanding Blockchain

Blockchain is the technology that makes cryptocurrency possible. It's a special type of database that stores information in a unique way.

How Does It Work?

Imagine a notebook that:

• Everyone in the world has a copy of
• New pages can only be added, never removed
• Everyone's copy updates automatically when pages are added

That's essentially what a blockchain is - a shared record that can't be faked or changed.

Blocks and Chains

[[Block]]s are groups of transactions bundled together. Each block:

• Contains many transactions
• Has a unique fingerprint (hash)
• Links to the previous block

This creates a chain of blocks - hence "blockchain"!

Why Is This Revolutionary?

Before blockchain, digital things could be copied infinitely. Blockchain solved this by creating digital scarcity - each Bitcoin or token is unique and can't be duplicated.

🔗 The first blockchain was Bitcoin, created in 2009 by the mysterious Satoshi Nakamoto.