---
title: deviceVerificationNonce
framework: storekit
role: symbol
role_heading: Instance Property
path: storekit/transaction/deviceverificationnonce
---

# deviceVerificationNonce

The UUID for computing the device verification value.

## Declaration

```swift
let deviceVerificationNonce: UUID
```

## Discussion

Discussion Use the lowercased nonce when computing the deviceVerification value.

## See Also

### Verifying transactions

- [deviceVerification](storekit/transaction/deviceverification.md)
- [signedDate](storekit/transaction/signeddate.md)