[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [local‑first/Owner](https://evolu.dev/docs/api-reference/common/local-first/Owner) › OwnerId

```ts
const OwnerId: brand("OwnerId", Id);
```

Defined in: [packages/common/src/local-first/Owner.ts:90](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/Owner.ts#L90)

OwnerId is a branded [Id](https://evolu.dev/docs/api-reference/common/Type/variables/Id) that uniquely identifies an [Owner](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/Owner).