The Code Most People Never See

Yeah,yeah i know more than 90% of the people reading this have heard of bitcoin. Everyone talks about Bitcoin's price. Few people talk about what makes it actually work. Under the hood, Bitcoin is a marvel of applied cryptography, distributed systems, and elegant scripting and you don't need to be a cryptographer to understand it.

01 Transactions

How a transaction is born

When you send Bitcoin, your wallet doesn't move coins the way a bank does. Instead, it constructs a raw transaction, a small blob of binary data referencing previous unspent outputs (UTXOs) as inputs, and specifying new outputs for the recipient and change.