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  1. Home
  2. /Glossary
  3. /Modular Blockchain
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blockchain

Modular Blockchain

A blockchain design that separates core functions like execution, consensus, settlement, and data availability into specialized layers.

Definition

A blockchain design that separates core functions like execution, consensus, settlement, and data availability into specialized layers. Instead of one chain doing everything (monolithic), each module can be optimized independently. Celestia pioneered this approach, and Ethereum is evolving toward it with rollups handling execution.

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Related Terms

Data Availability

The guarantee that transaction data is published and accessible to anyone who needs to verify it.

Rollup

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

Execution Layer

The part of a blockchain that processes transactions and runs smart contracts.

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.

ERC-4337

The Ethereum standard for account abstraction without changing the core protocol.

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