Overview

An overview of Optimistic rollup

At a high-level, Optimistic Rollup is a Layer 2 scaling solution that is generalizable to any type of Ethereum transaction. It drastically reduces gas costs per transaction, while preserving the decentralization and security properties of the Ethereum main chain. On Optimistic Rollup (OR), you can send ETH and interact with any smart contract, all with much cheaper fees.

Optimistic Rollup is a much simpler mechanism than Plasma or State Channels, solving the infamous problem by directly posting all critical data on-chain as . This means we submit every single OR transaction on-chain. Now, this might sound expensive, but we actually still achieve substantial gas savings because none of those transactions are actually executed on-chain.

Operation

Gas cost

ETH transaction

21,000

Calldata for ETH transaction

1,200

Learn more about Optimistic Rollup:‌

PreviousUnipig NextValidation

Last updated 5 years ago

Was this helpful?

At a high-level, Optimistic Rollup is a Layer 2 scaling solution that is generalizable to any type of Ethereum transaction. It drastically reduces gas costs per transaction, while preserving the decentralization and security properties of the Ethereum main chain. On Optimistic Rollup (OR), you can send ETH and interact with any smart contract, all with much cheaper fees.

Optimistic Rollup is a much simpler mechanism than Plasma or State Channels, solving the infamous problem by directly posting all critical data on-chain as . This means we submit every single OR transaction on-chain. Now, this might sound expensive, but we actually still achieve substantial gas savings because none of those transactions are actually executed on-chain.

Operation

Gas cost

ETH transaction

21,000

Calldata for ETH transaction

1,200

Learn more about Optimistic Rollup:‌

Ethereum Smart Contracts in L2: Optimistic Rollup

The Dawn of Hybrid Layer 2 Protocols

Minimal Viable Merged Consensus

Optimistic Rollup Github Code

data

availability

calldata