1. directly consult the organizers, who can provide the electronic version or paper version of the entry certificate.

2. Log in to official website and find the entry certificate in the "My Competition" or "My Certificate" option.

3. Contact the relevant person in charge of the school or college, who may have obtained the electronic or paper version of the entry certificate and can provide it to you.

The above methods are for reference only, and the specific operation needs to be decided according to the actual situation.