① Log on to the national VAT invoicing inspection platform in State Taxation Administration of The People's Republic of China, People's Republic of China (PRC).

② Enter the card issuing code, card issuing number, card issuing date, check code and verification code, and click "Check".

Note: The above information is in the upper right corner of e-ticketing.

(3) you can see the ticket inspection details of the e-ticket, and you can choose to print or close to complete the ticket inspection of the e-ticket.

Second, Adobe Reader looks at the electronic signature of the ticket.

① Open the PDF file of e-ticket issuance with Adobe Reader on the computer, click the left mouse button or the right mouse button on the "Special Stamp for Issuance" in the lower right corner of e-ticket issuance, and select "Verify Signature".

② Click "Signature Properties", and then click "Show signer certificate".

③ Check the specific information of electronic signature. If it is a real electronic ticket, you can see that the unit of electronic signature is the same as the unit of red stamp, which means that the signature is used to issue tickets, and the signature time is the same as the date of issue, so that you can basically judge that this electronic ticket is true and effective.