<h1>Validity of GST Documents Questioned Due to Lack of Digital Signatures on Common Portal: Taxpayer Verification Essential.</h1> Concerns have arisen about the validity of GST-related documents, such as show cause notices and assessment orders, issued without digital signatures on the common portal. These documents are generated by tax officers who log in using digital signatures, eliminating the need for physical signatures. The documents, stored in JSON format, include order and officer details and are digitally signed. Taxpayers can verify the authenticity and purpose of these documents both pre-login and post-login on the GST portal. All critical actions by officers, including issuing notices and orders, require digital signature authentication.