# entitySignatureHash

**Kind:** Function

**Source:** [`atloria-monorepo/libs/parser-core/src/techdocs/staleness.ts`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/libs/parser-core/src/techdocs/staleness.ts#L21)

A stable hash of an entity's PUBLIC SIGNATURE (not its body/formatting). Two parses of the
same logical API produce the same hash; a signature change (new method, changed return type,
new field, new endpoint shape) changes it. Moves/renames of unrelated code do not.

## Signature

```ts
function entitySignatureHash(entity: Entity): string
```

## Parameters

| Name | Type |
|---|---|
| `entity` | `Entity` |

**Returns:** `string`