What is Mainnet?
Mainnet in cryptocurrency is the term used to describe the primary operational blockchain network where actual transactions occur and are recorded. It is the real life environment for a blockchain, unlike a testnet, which serves testing and development purposes.
Mainnet in Crypto
A crypto mainnet is principally the live version of a blockchain — it stores real data and allows for transactions involving actual tokens.
A blockchain's mainnet is the backbone of its ecosystem, whether it be part of a cryptocurrency such as Bitcoin (BTC), a decentralized application (dApp), or other projects. On the mainnet, users can send tokens, interact with dApp services and run smart contracts.
Mainnet versus Testnet
Mainnet transactions involve actual tokens and thus require rigorous testing before becoming available to users.
For this reason, crypto ecosystems begin on a testnet, where the blockchain is put through its paces and any bugs or security issues ironed out. Ethereum (ETH), for example, has a testnet called Goerli, where developers can simulate mainnet conditions without risking loss of funds or compromising security for users.
When a project leaves its testnet and transitions to a mainnet, it is known as a mainnet launch, and the event marks its metamorphosis into a real-world phenomenon.
Mainnet Features
On a mainnet, the transactions — depending on the specific token involved — ostensibly have monetary value. The tokens or coins being transacted represent real assets and are validated by the blockchain network's consensus mechanism.
