What is crypto?

When people say "crypto", they usually mean three different things at once: a network, an asset, and a market. Untangling those three is most of the work of understanding what you are buying.

The network

A blockchain is a shared ledger that nobody owns and everybody can check. When you send bitcoin, you are not moving a file — you are asking thousands of independent computers to agree that a row in that ledger changed. That agreement, not any company, is what makes the asset exist.

The asset

A coin is the native asset of its own blockchain: bitcoin on Bitcoin, ether on Ethereum. A token is an asset that lives on someone else's blockchain — most stablecoins, for example, are tokens on Ethereum and other networks. The difference matters because a token inherits the security and the outages of the chain it lives on.

Owning a crypto asset means controlling the private key that can move it. If a key controls the asset and you do not hold the key, you are trusting whoever does. That is the single most important idea in this series, and the wallet lesson covers it in depth.

The market

Prices come from exchanges — marketplaces where buyers and sellers meet. There is no official bitcoin price, only the price of the most recent trade on each venue. That is why CoinBeaver always names the exchange and timestamp behind every number it shows.

What crypto is not

Crypto assets are not shares in a company, not insured bank deposits, and not guaranteed to hold value. Nothing in this guide is investment advice. The goal of this series is narrower: by the end of it you should know what you would own, where it would live, and what could go wrong — before any money moves.