This page is for information purposes only. Certain services and features may not be available in your jurisdiction.

Glossary (42)

consensus-mechanism
Blockchain concepts

What is a consensus mechanism?

A consensus mechanism is the set of rules a blockchain network uses to decide which block to accept next and which ledger history to follow. Nodes rec
Nov 9, 2026
1
what-is-block
Blockchain concepts

What is a block?

A block is a data package that a blockchain uses to group new records. It usually contains transactions or other updates, along with information that
Nov 9, 2026
candlestick-chart
Altcoin
Trending token

What are tokenized stocks?

Tokenized stocks use tokens on a blockchain to represent a particular stock itself, an interest related to that stock, or a contract that follows the
Nov 9, 2026
1
token-standard
Ethereum

What is a token standard?

A token standard is a technical specification that sets out which functions a token program should provide, what inputs it accepts, and how it reports
Nov 9, 2026
USDC-DAI-USDT Price: Everything You Need to Know About Stablecoins
Stablecoins

What is a stablecoin?

A stablecoin is a crypto asset designed to track a reference value, commonly a fiat currency such as the US dollar. The word “stable” describes a targ
Nov 9, 2026
smart-contract
OKX
Introduction to cryptocurrencies

What is a smart contract?

A smart contract is a program deployed on a blockchain network that runs according to its code once a transaction or another program calls it. It can
Nov 9, 2026
1
seed-phrase
Security

What is a seed phrase?

A seed phrase—often called a recovery phrase or mnemonic phrase—is an ordered sequence of words that some wallets use as an input for reconstructing w
Nov 9, 2026
public-key
Security

What is a public key?

A public key is the shareable part of an asymmetric cryptographic key pair. In the digital-signature systems used by many blockchains, a private key p
Nov 9, 2026
1
proof-of-work
Bitcoin
Security

What is proof of work?

Proof of work (PoW) is a category of consensus mechanism that protects a blockchain through computational cost. Participants have to compute repeatedl
Nov 9, 2026
Delegated Proof of Stake DPoS Explained
OKX
Ethereum

What is proof of stake?

Proof of stake (PoS) is a category of consensus mechanism that protects a blockchain through staked assets and protocol rules. Participants place the
Nov 9, 2026
private-key
Security

What is a private key?

A private key is secret cryptographic material used by a signing algorithm to produce digital signatures. On a blockchain, a valid signature can satis
Nov 9, 2026
portfolio-diversification
Altcoin
Trending token

What is portfolio diversification?

Portfolio diversification is spreading a portfolio's assets or sources of risk across several objects, instead of letting the outcome depend mainly on
Nov 9, 2026
What is a Web3 wallet? Learn banner
Web3
Security

What is a non-custodial wallet?

A non-custodial wallet is an arrangement in which a service provider does not hold the user’s signing keys or equivalent unilateral authority to autho
Nov 9, 2026
endereço de carteira blockhain
Security

What is a hot wallet?

A hot wallet is a wallet arrangement in which transaction authorization is available through an internet-connected system. It can prepare and authoriz
Nov 9, 2026
hard wallet
Security
Wallets
Self-custody

What is a hardware wallet?

A hardware wallet is a purpose-built physical device that stores or derives private keys and signs requests separately from a general-purpose computer
Nov 9, 2026
how to buy crypto guide
OKX
Ethereum

What is a gas fee?

A gas fee is the amount paid for the network resources consumed by an operation on a blockchain that uses gas accounting. Gas is the accounting unit;
Nov 9, 2026
expiry-futures
OKX

What are expiry futures?

Expiry futures, also called dated futures, are futures contracts with an expiry time written in advance. What a trader holds is not the spot asset its
Nov 9, 2026
etf
OKX
Introduction to cryptocurrencies

What is an exchange-traded fund (ETF)?

An exchange-traded fund (ETF) is a product that pools money from many investors, holds a set of assets according to a stated objective, and at the sam
Nov 9, 2026
thumbnail:what-is-evm
Ethereum

What is the EVM?

The Ethereum Virtual Machine (EVM) is a set of shared rules for executing smart contracts. Ethereum nodes implement those rules in their own software,
Nov 9, 2026
Ethereum Logo
OKX
Ethereum

What is Ethereum?

Ethereum is a public blockchain network. It does more than record transfers of a native asset: it also lets developers deploy programs onto the blockc
Nov 9, 2026
erc-20
Ethereum

What is ERC-721?

ERC-721 is a set of interface standards used on Ethereum to track individually numbered tokens. Tokens of this kind are usually called non-fungible to
Nov 9, 2026
erc-721
Web3

What is ERC-20?

ERC-20 is an interface standard for fungible tokens on Ethereum. It addresses a kind of onchain program responsible for recording balances and handlin
Nov 9, 2026
do-your-own-research-dyor
Security

What is DYOR?

DYOR is short for "do your own research". In a crypto asset context it means not treating promotion, posts or other people's conclusions as facts outr
Nov 9, 2026
digital-asset
Trading concepts

What is a digital asset?

A digital asset is a resource that exists as electronic data or in binary form and has value or use for a person or an organization. It can be a docum
Nov 9, 2026
Sign up to OKX