What Is Cryptocurrency?

Coins, exchanges, and wallets — the practical building blocks.

Updated 2026 ж. 21 қаз.GaiaEx Academy Editorial

Бұл сабақта

What makes something a cryptocurrency
Where crypto's value comes from

Негізгі тұжырымдар

1Crypto is digital money secured by cryptography on a blockchain
2Value comes from supply, demand, utility, and trust
3It can move globally, permissionlessly, and 24/7

Сабақ қорытындысы

Cryptocurrency is a digital asset controlled by cryptographic keys and usually settled on a blockchain.

Mental model

Getting cryptocurrency straight

Cryptocurrency is a digital asset controlled by cryptographic keys and usually settled on a blockchain. What matters for users is what the asset does, where it settles, and who controls the keys.

What makes something a cryptocurrency
Where crypto's value comes from

Mechanics

How to reason about cryptocurrency

Coins native to a chain pay fees or secure the network.

Tokens are issued by smart contracts or protocols on top of a chain.

Market value comes from supply, demand, liquidity, utility, and belief in the network.

Crypto is digital money secured by cryptography on a blockchain
Value comes from supply, demand, utility, and trust
It can move globally, permissionlessly, and 24/7

Example

Cryptocurrency in practice

ETH can be used to pay gas on Ethereum, while a token such as USDC can move on Ethereum but follows a separate issuer and reserve model.

Есте сақтаңызDecision rule: Before buying, separate the asset, the chain, the venue, and custody.

Common mistakes

Where people slip up with cryptocurrency

Seeing a balance in an app does not always mean you hold the on-chain asset yourself. The app may be showing a custodial claim.

Risk notes

Reading the risk in cryptocurrency

Crypto risk includes volatility, smart-contract bugs, exchange failure, chain congestion, and irreversible transfers to wrong addresses.

Identify whether it is a coin or token.
Check where it settles.
Know who controls withdrawal keys.

Practice

Practise cryptocurrency before moving on

Identify whether it is a coin or token.
Check where it settles.
Know who controls withdrawal keys.

Қайталау

Негізгі терминдер

Blockchain: A shared, append-only ledger replicated across many computers, secured by cryptography and consensus.
Custody: Who controls the private keys. Custodial = a third party holds them; non-custodial = you do.
Ethereum (ETH): A programmable blockchain — a 'world computer' that runs smart contracts and dApps.
Liquidity: How easily an asset can be bought or sold without moving its price much.
Smart Contract: Self-executing code on a blockchain that runs exactly as written when conditions are met.

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