# Genesis block

## Definition

A genesis block is the first block or initial block state of a blockchain from which later chain history is built.

## What it means in practice

Its creation and contents are defined by the network rather than produced through ordinary user transactions.

## How this concept appears in Terenval Wallet

Terenval connects to established supported networks whose chain identity ultimately traces back to their configured genesis state.

**Important:** A chain with a similar name or address format can still be a different network if its genesis and Chain ID differ.

**[Install Terenval Wallet](https://wallet.terenval.com/?lang=en)**

## Related terms

- [Block](https://wallet.terenval.com/glossary/block/)
- [Blockchain](https://wallet.terenval.com/glossary/blockchain/)
- [chain id](https://wallet.terenval.com/glossary/chain-id/)
- [Mainnet](https://wallet.terenval.com/glossary/mainnet/)
- [Testnet](https://wallet.terenval.com/glossary/testnet/)

## Related Terenval Answers

- [What Is a Crypto Wallet and What Does It Actually Store?](https://wallet.terenval.com/answers/what-is-a-crypto-wallet-and-what-does-it-store/)
- [Can One Crypto Wallet Manage Multiple Blockchains?](https://wallet.terenval.com/answers/can-one-crypto-wallet-manage-multiple-blockchains/)
- [How to Send Crypto Safely Between Wallets](https://wallet.terenval.com/answers/how-to-send-crypto-safely-between-wallets/)

Official page: https://wallet.terenval.com/glossary/genesis-block/