GGlossary · 2 min read

What is a layer 2?

A layer 2 executes transactions on its own network and settles them to Ethereum, keeping fees low. What that means for wallets, gas and Robinhood Chain.

275 words · about 2 minutes·Article updated 20 August 2026
Definition

A layer 2 is a network that executes transactions on its own and posts the results to Ethereum for settlement, so fees stay low while final security comes from the base chain. Robinhood Chain is a layer 2, chain ID 4663, and it uses ETH for gas.

The saving comes from batching. Instead of every transfer paying for its own space on Ethereum, thousands are executed on the layer 2 and their results are committed together, splitting the base-chain cost across all of them. A typical Robinhood Chain transaction costs about pending in gas as a result.

The practical effects are worth knowing before your first transaction. Your Ethereum address works unchanged once the network is added to your wallet, contracts are deployed separately on each network, and moving funds between them means bridging rather than a plain transfer. Assets on one network are not visible on the other.

Where you'll see it on Locksley

Every token page is a Robinhood Chain contract, and fee, throughput and value-locked figures for the network sit on Robinhood Chain by the numbers, each read live rather than written down.

What is Robinhood Chain? explains the network from zero, and Robinhood Chain vs Ethereum works through the layer-2-versus-layer-1 trade-offs in detail.

Frequently asked questions

Is a layer 2 the same as a sidechain?

No. A layer 2 depends on Ethereum for settlement: transaction data and results are committed to the base chain, so its security is anchored there. A sidechain runs its own consensus and its own validator set, and connects through a bridge. Both can be fast and cheap; the difference is what ultimately guarantees the state.

FiguresEvery number on this page is frozen at the date printed beside it and refreshed when the page is rebuilt — not live. The sentences reason about the figures, so a value that changed underneath them would make the prose wrong. Live values live on Explore and the pages it links out to. Methodology →
CorrectionsFound something wrong? Send the page and what you computed instead through the contact page. Every correction is logged publicly.
ReusePublished under CC BY 4.0. Quote it, translate it, fork it — cite the page and the date.
Who wrote thisWritten and maintained by the Locksley editorial team. Locksley is built by TrustSwap, which also owns Team Finance — the tool linked above.