🎉 We are deprecating the Optimism SDK and migrating all tutorials to use viem/op-stack. Read more →

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BUILDERS
Notices (README)
- Preparing for Holocene breaking changes
- Preparing for Optimism SDK deprecation
App developers
Chain operators
Node operators
Developer tools
OP STACK
Getting started: OP Stack
Differences between Ethereum and OP Stack chains
Superchain explainer
Design philosophy & principles
OP Stack components
Smart contracts
Rollup
Fault proofs
Transactions
Features
- SendRawTransactionConditional
Security
- Security FAQs
- Pause and unpause the Bridge
EXPERIMENTAL
OP Contracts Manager
Interoperability
Beta features
- Custom gas token
- Alt-DA Mode
Research
- Block time research
OP MAINNET
Getting started: OP Mainnet
Networks and RPC Endpoints
Contract addresses
Bridged token addresses
Identity
Testing
- Running a local development environment
- Testing apps on OP Mainnet
Security
CONNECT
Contribute
Resources
- Changelog (opens in a new tab)
- Glossary
Get Launch Support (opens in a new tab)
Optimism Governance (opens in a new tab)

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Chain operators

OP Stack hacks

Hacks

This section provides information on various types of hacks related to OP Stack, including data availability, derivation, execution, and settlement. You'll find an overview and introduction to help you understand and work with these topics, as well as featured hacks for practical examples.

Data availability hacks Derivation hacks Execution hacks Featured hacks Introduction to op stack hacks Settlement hacks

OP Stack hacks Featured hacks

OP Documentation