1. signature comparison: compare the signature provided by the cardholder with the signature recorded on the document or transaction voucher to ensure the consistency of the signature.

2. Observe the handwriting: carefully observe the handwriting characteristics of the signature, including the writing style and pressure, and check the obvious flaws or irregularities in the signature.

3. Use professional equipment: In order to further verify the authenticity of the signature, we will use professional equipment and technology, such as electronic signature verification system, optical comparison and other tools to analyze and compare the characteristics of the signature.

4. Verification of identity information: In addition to the signature itself, it will also verify the identity information of the cardholder, such as identity documents, mobile phone numbers, account information, etc. , which helps to confirm whether the signature is consistent with the identity of the cardholder.