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  1. Home
  2. /Glossary
  3. /Aggregation Layer
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blockchain

Aggregation Layer

An infrastructure layer that unifies liquidity and state across multiple rollups and chains.

Definition

An infrastructure layer that unifies liquidity and state across multiple rollups and chains. Polygon's AggLayer and zkSync's Hyperchains are building this so users can move assets seamlessly across L2s. The goal is to solve fragmentation by making all connected chains feel like one network.

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Related Terms

Rollup

A Layer 2 scaling solution that bundles many transactions together before posting them to the main chain.

Interoperability

The ability of different blockchains to communicate and work together.

Layer 2

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

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.

Account Model

The way Ethereum and many other chains track balances.

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