# Understanding Mainnet in Blockchain Technology
Mainnet represents the live, fully operational blockchain network where real transactions execute with actual economic value. This comprehensive guide explores mainnet fundamentals, from Bitcoin's 2009 launch through modern platforms like Ethereum, Solana, and Polkadot, equipping developers, investors, and blockchain users with essential knowledge. The article traces mainnet evolution, market impact, and technological significance while examining diverse use cases spanning decentralized finance, NFT marketplaces, and supply chain management on Gate. Perfect for anyone navigating blockchain technology, this guide clarifies mainnet-testnet distinctions, launch preparation requirements, migration risks, and security considerations. Discover how mainnets drive cryptocurrency adoption across financial sectors and beyond.