Layer 1

Blockchain InfrastructureUpdated: October 15, 2025

Also known as: L1, Base Layer, Base Chain

Browse all Blockchain Infrastructure terms

Base Data Availability Layer EBSI (European Blockchain Services Infrastructure)Full Node Interoperability Layer 2 Mainnet Node Oracle Polygon Validator

The base layer of a blockchain, like Ethereum or Bitcoin

The base layer of a blockchain, like Ethereum or Bitcoin.

Layer 1 blockchains are the foundational protocols that process and finalize transactions on their own networks. They provide the core security and consensus mechanisms but often face scalability challenges.

Related Terms

Layer 2 Blockchain

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