Definition
Chain ID
A chain ID is the network identifier wallets and apps use to distinguish one EVM-compatible blockchain from another.
Glossary
Mainnet glossary
Short definitions for network setup terms people search before configuring wallets, apps, explorers, and infrastructure.
Definition
RPC endpoint
An RPC endpoint is a node URL that wallets and apps use to read from or submit transactions to a blockchain network.
Definition
Public RPC
A public RPC is a shared blockchain node endpoint offered for convenience, usually with rate limits and no production reliability guarantee.
Definition
Node provider
A node provider runs blockchain infrastructure and exposes RPC endpoints, often with paid plans, service limits, regions, and monitoring features.
Definition
Gas token
A gas token is the asset used to pay transaction fees on a blockchain network.
Definition
Block explorer
A block explorer is a public interface for looking up blockchain blocks, transactions, addresses, contracts, and tokens.
Definition
Sequencer
A sequencer is infrastructure that orders transactions for many rollup-based L2 networks before they are finalized or posted elsewhere.
Definition
Rollup
A rollup is a scaling network that executes transactions off an underlying chain while posting data, proofs, or settlement information back to it.
Definition
Mainnet
A mainnet is a production blockchain network where real assets and real transactions can occur.