Online banking flow of CCB is a service provided by CCB for customers to query and print transaction bills online. In order to ensure the authenticity and effectiveness of the running water, CCB will affix an electronic seal on the running water. This electronic seal is processed by digital signature technology, which can verify the authenticity of the running water and prevent it from being tampered with.

When printing the running water, the customer can choose whether to stamp the electronic seal. If the customer chooses to stamp the electronic seal, there will be obvious electronic seal on the printed running water, which proves the authenticity and effectiveness of the running water.