Wallets and tools · Explainer
What Is a Cryptocurrency Wallet? How It Works
A cryptocurrency wallet lets you manage the keys used to access crypto on a blockchain. Learn how wallets work, how to choose a type, and how to avoid common mistakes.
Guides
Crypto and dApp guides – Page 15
Explainers, how-tos and chain guides that help you use Web3 safely, written by our editorial team.
Wallets and tools · Explainer
What Is a Custodial Crypto Service? 2026 Guide
A custodial crypto service holds the private keys for crypto in your account. Learn how that arrangement works, what risks it creates, and how to compare it with self-custody.
Blockchain · Explainer
What Is a Decentralized Blockchain Platform?
A decentralized blockchain platform lets many independent participants maintain a shared ledger and run applications without relying on one central operator. Learn how its parts work, what decentralization does—and does not—guarantee, and what to check before using one.
Crypto gambling · Explainer
What Is a Decentralized Crypto Casino?
A decentralized crypto casino uses blockchain infrastructure for some parts of gambling, such as bets, payments or game rules. Learn what that does—and does not—mean for custody, fairness, privacy and risk.
DeFi · Explainer
What Is a Decentralized Crypto Exchange?
A decentralized exchange (DEX) lets you swap crypto through blockchain-based software rather than handing your funds to a company to hold. Learn how swaps, liquidity, fees, and risks work before connecting a wallet.
Wallets and tools · Explainer
What Is a Decentralized Crypto Wallet?
A decentralized crypto wallet gives you direct control of the keys used to manage assets on a blockchain. Learn how it works, what it can and cannot protect, and how to use one more safely.
DeFi · Explainer
What Is a Decentralized Exchange (DEX)?
A decentralized exchange (DEX) lets you trade crypto through blockchain-based software, usually from a wallet you control. Learn how swaps work, what they cost, how DEXs differ from centralized exchanges, and how to reduce common risks.
Wallets and tools · Explainer
What Is a DeFi Wallet? How It Works and What to Know
A DeFi wallet lets you control crypto assets and connect to decentralized finance apps using your wallet keys. Learn how wallets work, what they can do, and how to use one more safely.
DeFi · Explainer
What Is a DEX Aggregator? How Swap Routing Works
A DEX aggregator compares swap routes across decentralized exchanges and can split a trade among them. Learn how routing works, what it costs, and which risks to check before approving a transaction.
DeFi · Explainer
What Is a DEX in Crypto? How Decentralized Exchanges Work
A decentralized exchange lets you swap crypto through blockchain software rather than depositing funds with a conventional exchange. Learn how DEX trades work, what they cost, how they differ from centralized exchanges, and what to check before connecting a wallet.
DeFi · Explainer
What Is a DEX? How Decentralized Exchanges Work
A decentralized exchange (DEX) lets you swap crypto through blockchain-based software instead of depositing funds with a conventional exchange. Learn how DEX trades, prices, fees and liquidity work, and what to check before connecting a wallet.
Wallets and tools · Explainer
What Is a Hot Crypto Wallet? How It Works
A hot crypto wallet is software used to access crypto while connected to the internet. Learn how it works, how it differs from a cold wallet, and how to reduce common risks.
Blockchain · Explainer
What Is a Layer 1 Blockchain? A Clear 2026 Guide
A Layer 1 is a blockchain’s base network: it records transactions, reaches agreement on their order and enforces its rules. Learn how L1s work, how they differ from Layer 2s, and what to consider when using one.
Blockchain · Chain guide
What Is a Layer 2 Blockchain? A 2026 Guide
A layer 2 (L2) is a network or system designed to handle transactions alongside a base blockchain, often to make activity faster or cheaper. Learn how rollups work, what security they inherit, and how to assess the risks before using one.
Blockchain · Explainer
What Is a Layer 2 in Crypto? How L2s Work
A layer 2 (L2) is a network or system designed to handle transactions with help from an underlying blockchain. Learn how rollups work, what security they inherit, how bridges fit in, and what to check before using an L2.
Wallets and tools · Explainer
What Is a Multi-Chain Crypto Wallet?
A multi-chain crypto wallet lets you manage assets and use apps on more than one blockchain through one wallet interface. Learn how it works, what it does not do, and how to choose and use one safely.
Wallets and tools · Explainer
What Is a Multisignature Wallet? How Multisig Works
A multisignature wallet requires approval from more than one key before it can move crypto. Learn how thresholds work, how multisigs differ across blockchains, and what to check before you rely on one.
DeFi · Explainer
What Is a Perp DEX? How Perpetual Trading Works
A perpetual decentralized exchange lets you trade crypto price exposure through contracts with no expiry, using blockchain-based infrastructure instead of a conventional exchange account. Learn how margin, funding payments, liquidations and different trading designs work—and what to check before using one.
Wallets and tools · Explainer
What Is a Private Crypto Wallet? Control, Privacy, and Safety
A private crypto wallet can mean a wallet you control yourself or one designed to improve transaction privacy. Those are different things: self-custody protects control of your keys, but it does not make blockchain activity invisible.
Crypto gambling · Explainer
What Is a Provably Fair Crypto Casino?
Provably fair tools let you check whether a game result matches a casino’s published cryptographic rules. Learn how seed commitments work, what they can prove, and what they cannot.
Wallets and tools · Explainer
What Is a Self-Custody Web3 Wallet?
A self-custody Web3 wallet lets you authorize blockchain activity without handing a platform control of your keys. Learn how wallets work, what you are responsible for, and how to use one more safely.
DeFi · Explainer
What Is a Stablecoin? How It Works and Its Risks
Stablecoins are crypto tokens designed to track the value of another asset, often the US dollar. Learn how they work, where their pegs can fail, and what to check before using one.
Wallets and tools · Explainer
What Is a Web3 Wallet? A Practical 2026 Guide
A Web3 wallet lets you manage blockchain accounts and approve actions in decentralized apps. Learn what it controls, how to choose a wallet, and how to use one safely.
Blockchain · Explainer
What Is a Zero-Knowledge Proof? How ZKPs Work
A zero-knowledge proof lets you show that a claim is true without handing over the secret that makes it true. Learn how the cryptography works, where blockchains use it, and what it can—and cannot—protect.