**4. Solutions about Blockchain Technology**

Based on the research differentiation in China and internationally, we can condense the following table conclusions on the six-layer structure of the blockchain, as shown in Table 3.


**Table 3.** Differences Between China and International Research using blockchain technology.

By analyzing the domestic and international research of blockchain, we can make relevant references. Considering that Chinese blockchain research is more linked to the industrial chain and rooted in the real economy applications. In terms of the core algorithms, we can learn more from international research of improvements of the contract, consensus and network layers. We can also take full use of China's achievements in the security and privacy design. Thus, by combining the advantages of both to achieve and implement the whole.
