Layer 2

Layer 2 networks process activity outside a base blockchain and use that base chain for part of their settlement or security. Rollups batch transactions and submit data or proofs to a Layer 1.

Layer 2 scaling illustrated with bundled transactions and a base blockchain

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Buy Towns (TOWNS) — A simple guide

If you're looking to buy Towns (TOWNS), you've landed in the right place. Towns is a decentralized communication and social platform built on Base, blending messaging with blockchain-powered...

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Buy Mind Network (FHE) — A simple guide

If you're looking to buy Mind Network (FHE), you've landed in the right place. Mind Network is one of the more technically ambitious projects in the AI and privacy computing space, combining fully...

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Buy Scroll (SCR) — A simple guide

If you're looking to buy Scroll (SCR), you've landed in the right place. Scroll is a Layer 2 scaling solution built on Ethereum that uses zero-knowledge proof technology to make transactions faster...

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Buy Lumia (LUMIA) — A simple guide

If you're looking to buy Lumia (LUMIA), you've come to the right place. Lumia is a Layer 2 platform built to bridge real-world assets onto blockchain networks like Ethereum and BNB Chain, making it...

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Buy Coinweb (CWEB) — A simple guide

If you're looking to buy Coinweb (CWEB), you've come to the right place. Coinweb is a cross-chain interoperability platform working to make blockchain technology more connected, collaborative, and...

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Buy Syscoin (SYS) — A simple guide

If you're looking to buy Syscoin (SYS), you're in the right place. Syscoin is a unique blockchain project that combines Bitcoin-level security with Ethereum-compatible smart contracts — making it...

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Buy Puffer (PUFFER) — A simple guide

If you've been looking into Ethereum restaking and came across Puffer, you're not alone — PUFFER has been drawing attention from people interested in next-generation Layer 2 and liquid restaking...

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Buy Katana (KAT) — A simple guide

If you're looking to buy Katana (KAT), you've come to the right place. KAT is the core governance and incentive token of the Katana DeFi ecosystem, designed to reward users who actively participate...

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What are Layer 2 crypto projects?

Browse the buying guides

They aim to increase capacity and reduce the cost per transaction. A sidechain with its own independent security model is not automatically a Layer 2 simply because it connects to Ethereum.

How it works

Optimistic and validity-proof systems use different methods to establish that transactions are correct. Their withdrawal paths, data availability, sequencers and upgrade controls also differ. The network’s token may govern decisions or incentives rather than pay gas, so buying that token is not the same as buying the asset needed to use the chain. Ecosystem growth should be considered alongside unlocks and the token’s actual function. Moving funds through a bridge adds dependencies beyond a normal wallet transfer.

Blockchain explained: connected blocks in a blockchain network
Cryptocurrency wallet and keys illustrating secure access and recovery

A little groundwork goes a long way

Before your next purchase or transfer, understand who controls access, where your crypto is going and what the trade will actually cost.

Protect access to your crypto

An exchange account and a self-custody wallet need different safeguards. Protect exchange logins with a unique password and strong two-factor authentication. For self-custody, your recovery backup is what lets you restore access.

Keep recovery words offline and private. A support agent or website asking for them is a reason to stop.

See a recovery example

Your phone breaks. An exchange may help you recover your account after identity checks. A self-custody wallet cannot reset your recovery phrase. Check your wallet’s official backup instructions before relying on it.

Choose the right transfer network

The asset, token version and network must be supported at the destination. A familiar ticker or a matching address format is not enough. Read the receiving platform’s deposit instructions before selecting a withdrawal network.

Check the address, any required memo or tag, fees and minimums. Consider a small test transfer first.

See a network example

Your destination accepts USDC on Ethereum. Selecting a cheaper network at the sending exchange does not make it an Ethereum transfer. Use a network both ends support; an ordinary withdrawal does not bridge tokens.

Understand the price you pay

Trading fees are only part of the cost. The spread, available liquidity and withdrawal charges also matter. A market order prioritizes execution; a limit order controls the price but may remain unfilled or fill only partly.

Check the order preview and the amount you will receive, then compare the full cost of your intended purchase and withdrawal.

Work through a cost example

Hypothetical example: a $200 trade with a 0.1% trading fee costs $0.20 in trading fees. A separate $5 withdrawal fee brings those charges to $5.20. Spread or slippage may add more; these are not quoted exchange rates.