Beijing twelve-centimeter science and technology co. Ltd. (hereinafter referred to as “12cm”) is a chinese subsidiary of korea's 12cm company, which has the technology of e-mail stamps and the source technology of over 200 patents. The easis seal is a smart o2o seal for global commerce. Many well-known global and chinese chains are now applying this technology. When the customer closes the account at the counter, the applet is opened and the purchase amount is entered at the appropriate interface, and once confirmed by the cashier, the score can be stamped on the phone with a smart stamp. The whole process takes five seconds! The easy operation has simplified the process of entering the customer's score and solved the pain of the mall's inability to achieve real-time and unified points. Smart stamp scores are unique compared to other solutions, such as manual entry in the service desk, sweep points, etc. This is also an important basis on which both parties can achieve s...