# z.tempo.SignatureEnvelope.Type

Signature envelope key type schema.

## Imports

```ts
import { z } from 'ox/zod'

z.tempo.SignatureEnvelope.Type
```

## Definition

```ts
export const Type = z.union([
  z.literal('secp256k1'),
  z.literal('p256'),
  z.literal('webAuthn'),
])
```

**Source:** [src/zod/tempo/SignatureEnvelope.ts](https://github.com/wevm/ox/blob/main/src/zod/tempo/SignatureEnvelope.ts)