Layer 0 Protocol
layer type
Foundational Blockchain Infrastructure ÔÇö Layer 0
Layer 0 refers to the base-level infrastructure that enables the creation and connectivity of multiple Layer 1 blockchains. Unlike standalone chains like Bitcoin or Ethereum, Layer 0 protocols are designed to coordinate networks, share security, and allow seamless interoperability. They act as the underlying framework for modular, scalable blockchain ecosystems.
Use Case: Layer 0 protocols allow developers to launch multiple application-specific Layer 1 chains while maintaining interoperability and shared governance.
Key Concepts: Interoperability, Relay Chain, Parachains, Cross-Chain Communication, Modular Blockchain Design
Layered Model Overview:
What is a Layer 0? Layer 0 is the foundational layer that allows multiple Layer 1 blockchains to be built on top of it and communicate with each other. It’s like the infrastructure for infrastructure.
Layered Blockchain Stack:
- Layer 0: Network frameworks that allow the creation and connection of multiple Layer 1s (e.g., Polkadot, Cosmos, Avalanche Subnets)
- Layer 1: Independent blockchains like Bitcoin, Ethereum, XRP, Cardano
- Layer 2: Protocols that run on top of Layer 1 to scale (e.g., Arbitrum, Optimism, Shibarium)
- Layer 3: Application-level protocols or app-specific infrastructure (e.g., Web3 social, gaming protocols)
Why Layer 0 Matters:
- Enables interoperability between blockchains
- Provides shared security across networks
- Allows developers to build custom blockchains with ease (e.g., via Substrate)
- Supports modular, scalable ecosystems instead of single-chain limitations