# Event log

## Definition

An Ethereum event log is structured data emitted by a smart contract during transaction execution and stored in the transaction receipt for applications and indexers.

## What it means in practice

Token Transfer and Approval events are common examples, but logs do not themselves execute additional state changes.

## How this concept appears in Terenval Wallet

Wallet and explorer interfaces can use logs to describe contract activity associated with transactions viewed through Terenval.

**Important:** An event name is descriptive execution data and not independent proof that an interaction was safe.

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

## Related terms

- [Smart contract](https://wallet.terenval.com/glossary/smart-contract/)
- [Ethereum transaction](https://wallet.terenval.com/glossary/ethereum-transaction/)
- [ERC-20](https://wallet.terenval.com/glossary/erc-20/)
- [Calldata](https://wallet.terenval.com/glossary/calldata/)
- [Contract account](https://wallet.terenval.com/glossary/contract-account/)

## Related Terenval Answers

- [Ethereum Layer 2 Networks and Gas Fees](https://wallet.terenval.com/answers/ethereum-layer-2-networks-and-gas-fees/)
- [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/)

## Sources

- https://ethereum.org/en/developers/docs/
- https://eips.ethereum.org/
- https://wallet.terenval.com/info/supported-networks/

Official page: https://wallet.terenval.com/glossary/event-log/