[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) › Owner

Defined in: [packages/common/src/local-first/Owner.ts:79](https://github.com/evoluhq/evolu/blob/ecbac001e0c18bbc45b44715f49ecc3a768c5ec9/packages/common/src/local-first/Owner.ts#L79)

An [ReadonlyOwner](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ReadonlyOwner) with an [OwnerWriteKey](https://evolu.dev/docs/api-reference/common/local-first/Owner/variables/OwnerWriteKey) for authorizing writes.

See the [Owners overview](https://evolu.dev/docs/api-reference/common/local-first/Owner).

## Extends

- [`ReadonlyOwner`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ReadonlyOwner)

## Extended by

- [`AppOwner`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/AppOwner)
- [`ShardOwner`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ShardOwner)
- [`SharedOwner`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/SharedOwner)

## Properties

<a id="encryptionkey"></a>

### encryptionKey

```ts
readonly encryptionKey: Uint8Array<ArrayBufferLike> & Brand<"Entropy"> & Brand<"Length32"> & Brand<"EncryptionKey"> & Brand<"OwnerEncryptionKey">;
```

Defined in: [packages/common/src/local-first/Owner.ts:69](https://github.com/evoluhq/evolu/blob/ecbac001e0c18bbc45b44715f49ecc3a768c5ec9/packages/common/src/local-first/Owner.ts#L69)

TODO: Wrap with `Redacted` in the next major version.

#### Inherited from

[`ReadonlyOwner`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ReadonlyOwner).[`encryptionKey`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ReadonlyOwner#encryptionkey)

---

<a id="id"></a>

### id

```ts
readonly id: string & Brand<"Id"> & Brand<"OwnerId">;
```

Defined in: [packages/common/src/local-first/Owner.ts:67](https://github.com/evoluhq/evolu/blob/ecbac001e0c18bbc45b44715f49ecc3a768c5ec9/packages/common/src/local-first/Owner.ts#L67)

#### Inherited from

[`ReadonlyOwner`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ReadonlyOwner).[`id`](https://evolu.dev/docs/api-reference/common/local-first/Owner/interfaces/ReadonlyOwner#id)

---

<a id="writekey"></a>

### writeKey

```ts
readonly writeKey: Uint8Array<ArrayBufferLike> & Brand<"Entropy"> & Brand<"Length16"> & Brand<"OwnerWriteKey">;
```

Defined in: [packages/common/src/local-first/Owner.ts:81](https://github.com/evoluhq/evolu/blob/ecbac001e0c18bbc45b44715f49ecc3a768c5ec9/packages/common/src/local-first/Owner.ts#L81)

TODO: Wrap with `Redacted` in the next major version.