1. Observe the watermark of paper money: Real paper money usually has a clear and fine watermark, and it can be observed whether the watermark meets the design requirements through light transmission.
2. Observe the paper quality and printing quality of banknotes: Real banknotes usually use high-quality special paper, and the printing quality should also be very high. If the paper is loose or the printing is blurred, it may be a sign of counterfeit money.
3. Check the anti-counterfeiting features on the banknotes: The banknotes of Xiamen Ye Quan Bank will have some special anti-counterfeiting features, such as gravure printing, optically variable ink, anti-counterfeiting coding, etc. These characteristics need to be carefully observed and compared to ensure that they meet the standards of real money.
4. Observe the patterns, colors and details of paper money: Real paper money usually has exquisite patterns, rich colors and detailed details. If the pattern is blurred, the color is abnormal or the details are missing, it may be counterfeit money.
5. Use ultraviolet light: Some real money has the characteristics of ultraviolet reaction, and you can use ultraviolet light to observe whether paper money has this reaction.
However, please note that the above methods may not be able to 100% confirm the authenticity of banknotes. For more complex forgery methods, professional equipment and expert identification may be needed. Therefore, in financial transactions, it is recommended to ensure the authenticity of banknotes with the support of professional equipment and financial institutions.