> ## Documentation Index
> Fetch the complete documentation index at: https://voltaire.tevm.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Event.getSignature

> Get canonical signature string for an event

## Overview

`Event.getSignature` returns the canonical event signature string used to compute topic0.

## Quick Start

```typescript theme={null}
import { Abi } from '@tevm/voltaire/Abi';

const Transfer = {
  type: 'event',
  name: 'Transfer',
  inputs: [
    { type: 'address', name: 'from', indexed: true },
    { type: 'address', name: 'to', indexed: true },
    { type: 'uint256', name: 'value' }
  ]
} as const;

const signature = Abi.Event.getSignature(Transfer);
// "Transfer(address,address,uint256)"
```

## Canonical Types

Signatures require canonical type names (`uint256`, `int256`, `bytes32`, etc.). Parameter names and `indexed` flags are ignored.

## See Also

* [getSelector](/primitives/abi/event/get-selector) - Compute topic0
* [Selectors](/primitives/abi/selectors) - Signature rules