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  1. Home
  2. /Glossary
  3. /Optimism
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blockchain

Optimism

An Ethereum Layer 2 network that uses optimistic rollup technology to process transactions faster and cheaper while inheriting Ethereum's security.

Definition

An Ethereum Layer 2 network that uses optimistic rollup technology to process transactions faster and cheaper while inheriting Ethereum's security. It's behind the OP Stack, an open-source framework that other L2s like Base and Zora use. The OP token is used for governance of the Optimism Collective.

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Learn More About Optimism

GuideLayer 2 Solutions Guide

Related Terms

Optimistic Rollup

A Layer 2 scaling solution that assumes all transactions are valid and only runs computation if someone challenges a transaction.

Layer 2

A secondary network built on top of a Layer 1 to improve scalability.

Ethereum

A blockchain platform that enabled smart contracts and decentralized applications.

ABI

Application Binary Interface.

Account Abstraction

A way to make crypto wallets behave more like normal apps by turning every account into a smart contract.

ERC-4337

The Ethereum standard for account abstraction without changing the core protocol.

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