If you want to check the authenticity of the invoice, you can not only check it on the national tax platform, but also search for "ticket hero" in Alipay or WeChat applet. After entering this small program, you can immediately know the authenticity of the invoice by directly scanning the QR code in the upper left corner of the invoice. The applet can also carry out a series of invoice work such as invoice entry, invoice duplicate checking, invoice authenticity and general ledger export.