What you want to ask is "can the person in charge of the catering unit check the authenticity of the employee health certificate on the relevant website?" Yes, not only the person in charge of catering, but anyone can check the authenticity of the health certificate, because now all the health certificate information is networked all over the country. Just enter the health certificate code on the health certificate handling website. What can be found is true, and what can't be found is false.