Modular Blockchain
Also known as: Composable Blockchain Architecture, Layered Blockchain Stack, Blockchain Modularity
A blockchain design that separates core functions like execution, consensus, and data availability across specialized layers.
A modular blockchain is an architectural paradigm where the core functions of a blockchain—execution, consensus, settlement, and data availability—are decoupled and handled by separate layers or modules. This contrasts with monolithic chains like Ethereum 1.0, where all functions occur in the same layer. Modular designs aim to optimize scalability, flexibility, and decentralization. Examples include Celestia (data availability layer) and Rollups (execution layers). This approach enables customized blockchain stacks tailored to specific use cases while leveraging shared infrastructure for security and interoperability.