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GLOSSARY · BLOCKCHAIN & WEB3

Mainnet

The main network of a blockchain where transactions and contracts have real value and permanent consequences.

WHAT IS IT? · FOR DUMMIES

The Mainnet is the “real” network of a blockchain. It's where everything you do has real consequences: if you send cryptocurrency, you lose it if you make a mistake; if you make a contract, you can't delete it. Unlike test networks (testnet), here the tokens have real value and the actions are permanent. It's like going from rehearsing at home to performing on stage with an audience.

WHAT IS IT? · PRO

The Mainnet (short for “main network”) is the official version, public and in production of a blockchain network, where transactions, smart contracts and operations are executed with real economic value and permanent consequences. In this environment, each mined or validated block forms part of the immutable historical record, and every action — from token transfers to complex logic executions in smart contracts — is validated through a decentralized consensus, depending on the network mechanism (Proof of Work, Proof of Stake, etc.).

Unlike the Testnets, where applications can be tested without risk and tokens have no value, the mainnet represents the environment in which Web3 projects deploy their definitive infrastructure, interact with real users and operate under market conditions. Ethereum, Bitcoin, BNB Chain, Polygon, Arbitrum and many others have active and fully functional mainnets. Every interaction on a mainnet consumes resources (gas or fees) and is subject to real technical and economic conditions, such as network congestion or gas price volatility.

In addition, operating on mainnet involves greater security, auditability and stability requirements, since any failure in a contract can result in irreversible losses. For this reason, the move from testnet to mainnet is considered a key milestone in the development of dApps, DeFi protocols, NFT marketplaces, tokens or any blockchain infrastructure. It is also the environment where processes of tokenization of real assets, issuance of security tokens, and all those activities that require regulatory compliance and full traceability are carried out.

01 / Key points

  • It is the official and definitive blockchain network
  • Tokens and transactions have real economic value
  • Any action taken is public, irreversible and traceable
  • Requires gas or real commissions to operate
  • It's the environment where Web3 products are released “seriously”

02 / Advantages

  • Economic and legal validity: actions have real effects on digital assets
  • Decentralization: validation by the community and without intermediaries
  • Full transparency: everything is recorded in the public ledger
  • Integration with real wallets, exchanges and services
  • Ideal environment for regulated or definitive business operations

03 / Disadvantages

  • Real economic cost for each operation (gas fees)
  • Higher risk of errors: any failure in smart contracts is irreversible
  • Network congestion at times of high demand
  • Requires rigorous prior testing and auditing
  • Harder to recover funds or correct errors that in a test environment