What evidence is needed when the professional title certificate is used in litigation?

Evidence of the qualifications of the parties, evidence of the occurrence of the infringement, and evidence of the size of the loss.

1. Evidence of the subject qualifications of the parties: such as ID card, household register, passport, etc.

2. Evidence of the occurrence of infringement: such as chat records, emails, text messages, etc.

3. Evidence of the size of the loss: such as financial accounts, invoices, etc.