# Block

## Definition

A block is a protocol-defined container or unit that groups transactions or state-transition data into an ordered blockchain history.

## What it means in practice

The exact structure, timing and validation rules of blocks differ between Bitcoin, Ethereum and Layer 2 systems.

## How this concept appears in Terenval Wallet

Terenval can show transaction status derived from supported networks, while blocks are created and validated by those networks rather than by the wallet.

**Important:** A transaction appearing in a block is a network event; the number of confirmations or finality still depends on the chain.

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

## Related terms

- [Blockchain](https://wallet.terenval.com/glossary/blockchain/)
- [Genesis block](https://wallet.terenval.com/glossary/genesis-block/)
- [transaction confirmation](https://wallet.terenval.com/glossary/transaction-confirmation/)
- [finality](https://wallet.terenval.com/glossary/finality/)
- [bitcoin block](https://wallet.terenval.com/glossary/bitcoin-block/)

## 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/block/