Layer 2
A system that processes activity outside a base blockchain while relying on it for key security or settlement functions.
In more detail
An L2 moves some work away from the base chain, but its connection to that chain is central to the design. Rollups are a common example. The details still matter: sequencing, upgrades, data availability and withdrawals can introduce dependencies beyond simply seeing Ethereum listed as the settlement layer.
How you might use it
You submit a transaction on the rollup; its batch later posts a commitment to the Ethereum base chain.
- Short name
- L2
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