# Chain reorganization

## Definition

A chain reorganization, or reorg, occurs when a blockchain node replaces part of its previously accepted chain history with another valid branch favored by the protocol's consensus rules.

## What it means in practice

A reorg can temporarily remove or reorder recent transactions until the network settles on the new history.

## How this concept appears in Terenval Wallet

Terenval transaction status ultimately follows the selected network, so very recent confirmations can change if that network reorganizes.

**Important:** Confirmation depth and finality matter precisely because recent chain state can be less stable than older state.

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

## Related terms

- [Consensus](https://wallet.terenval.com/glossary/consensus/)
- [finality](https://wallet.terenval.com/glossary/finality/)
- [transaction confirmation](https://wallet.terenval.com/glossary/transaction-confirmation/)
- [Block](https://wallet.terenval.com/glossary/block/)
- [proof of work](https://wallet.terenval.com/glossary/proof-of-work/)

## 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/chain-reorganization/