# Get Form Hash

**GET /transactions/{transactionId}/documents/{documentId}/hash**

Returns an MD5 hash of the form, calculated upon PDF generation. Useful for determining whether a form has changed since it was last retrieved.


## Servers
- Production: https://ws.zipformplus.com/api (Production)
- Staging/QA: https://api.pre.zipformplus.com/api (Staging/QA)


## Authentication methods
- Context auth


## Parameters

### Path parameters

- **transactionId** (string(uuid))
  Transaction GUID

- **documentId** (string)
  Document ID or Form GUID




## Responses
### 200
MD5 hash returned

#### Body: text/plain (string)
string
### 401
Unauthorized

### 404
Form not found


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