---
title: referenceSignature
framework: CKTool JS
role: symbol
role_heading: Instance Property
platforms: [cktool js 1.2.15+]
path: cktooljs/ckdbstreamingasset/referencesignature
---

# referenceSignature

The signature of a file returned from the asset upload step.

## Declaration

```data
attribute string? referenceSignature;
```