🔍 Inside a Block: The 6 Essential Components

Explore the anatomy of a block: index, timestamp, data, hash, previous hash, and nonce

🧩 Block Components

Every blockchain block consists of three essential components. Let's explore each one and understand how they work together.

🔗 How Components Work Together

1
Block Header provides metadata and links to the previous block through the "Previous Hash" field.
2
Transaction List contains all the actual data - the transfers, smart contract calls, or other operations.
3
Block Hash is calculated from all the data above, creating a unique fingerprint that secures the block.

💡 Key Insight

If you change even a single character in any component, the entire Block Hash changes completely. This is what makes blockchain tamper-proof - any modification is instantly detectable.