Core Viewpoint - The article discusses the implementation of a standardized electronic tax bureau system in Shanxi, focusing on the functionalities related to invoice verification and tax-related services [2][3]. Group 1: Invoice Verification Process - The system supports both single and batch invoice verification, allowing users to input details such as invoice source and issue date for manual checks [2]. - For batch verification, users can download a template, fill in the required information, and upload it to receive verification results [5]. Group 2: User Interaction - Users can choose to upload various file formats, including PDF, OFD, XML, and images containing invoice QR codes for verification [3]. - The system provides options to preview and print verification results after the checks are completed [3][5].