Crypto Tech Week

Unlocking the core tech behind Bitcoin—one day, one concept, five key points. Simple, smart, and straight to the chain.

Day 1: What Even Is Blockchain?

Let’s start with the basics.

1. Blockchain = Digital Ledger: Think of it as a notebook that records every transaction, forever.

2. Blocks = Data Containers: Each “block” holds a batch of transactions.

3. Chain = History: Once a block is full, it links to the previous one, forming a chain of data.

4. Decentralized Network: No single boss. Everyone (nodes) helps maintain and verify the ledger.

5. Immutability: You can’t go back and erase history here. Once it’s in the chain, it’s locked in.