GST Network on Thursday said show cause notices and assessment orders issued by the tax officer on the GST portal do not have digital signatures of the tax officers but such details are getting stored in the backend. In an advisory to taxpayers, GSTN said the validity of the document and who and for what purpose these documents have been issued can also be verified by the taxpayer pre-login as well as after login from the GST common portal. Doubts have been created regarding the validity of documents issued by the tax officers on the common portal viz. SCN/orders without the digital signatures on the PDF (portable document format) document downloaded from the common portal. The GSTN said it is to be mentioned that such documents are generated on the common portal from the login of the officer, who logs in using digital signature. "...these documents being computer generated on the command of the officer, may not require physical signatures of the officer as these documents can be .