The primary public blockchain network

Average time between blocks being added to blockchain

Testing environment for blockchain development

Unit of measurement for Ethereum gas prices

Transaction fee paid to process operations on Ethereum

Sidechain definition

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Oct 04, 2025

Definition

Separate blockchain connected to main chain

Polygon PoS as a sidechain offers Ethereum bridging; they provide sovereignty but require trust in peg mechanisms. Examples: Polygon, Ronin. Security: Relayer trust, peg risks. TPS: 100x L1 typically.

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Network Terms

Related Terms

Mainnet

Block Time

Testnet

Gwei

Wei

Gas Fee