Adaptive Evolution Mechanism of Blockchain Community Based on Token-based Halving Event

When Nakamoto proposed bitcoin, he also designed a half reduction mechanism. In previous studies, there are few studies on the Bitcoin halving event from the perspective of public opinion mining. This article mainly conducts public opinion mining on the content of Weibo within one month before and after each Bitcoin halving events, and studies the public opinion on Weibo of the Bitcoin halving event and its disturbing impact on the Bitcoin price market. The experimental results show that with the repeated occurrence of the halving event, the public pays more and more attention to it, and the specific content of its attention is constantly changing, which reflects the trend of Bitcoin market price changes to a certain extent. This research is of great value for studying the Bitcoin halving mechanism from the perspective of Weibo public opinion.