After a document is signed off, you can view the signature(s) on the document. This will show who signed the document and when it was signed. To access this, right click on the orange SOAPnote tab at the bottom of the SOAPnote. Select View Signatures.

The Document Signatures window will show the provider, the computer, and the time that the document was signed. It also gives a preview of the document in the lower portion of the window.