If the other party to the arbitration cannot confirm my signature certificate, the solution is as follows:

1. Ask the other party to produce evidence: First, you can ask the other party to produce the document, contract or document where the signature is located. Other supporting materials. If the other party cannot produce the corresponding certificate, or the certificate is not enough to prove the authenticity of the signature, you can raise an objection to the arbitration institution and ask the other party to provide more sufficient proof;

2. Request handwriting identification: If the signature If you have doubts about the authenticity of the signature, you can ask the other party to provide handwriting identification;

3. Provide other evidence: If you are not sure that the signature is yours, you can prove your position by providing other evidence. If you are unsure whether a signature on a document is authentic, you can prove and defend it by requesting evidence, handwriting identification, or providing other evidence. And actively participate in arbitration proceedings to protect their legitimate rights and interests.

Legal basis:

Article 79 of the "Civil Procedure Law of the People's Republic of China"

The parties may discuss the expertise in ascertaining the facts. Apply to the People's Court for appraisal. If a party applies for an appraisal, the two parties shall negotiate to determine a qualified appraiser; if the negotiation fails, the people's court shall appoint it.

If the party concerned has not applied for appraisal, and the people's court deems that appraisal is necessary for a specialized issue, it shall entrust a qualified appraiser to conduct appraisal.