Proposal of Stable Method of Block Generation Time Considering the Amount of Mining Power in Bitcoin

摘要

In recent years, virtual currencies are in circulation around the world. Bitcoin is a representative of virtual currencies, and the technology that supports the implementation of Bitcoin is blockchain. The Bitcoin blockchain has a mechanism to generate blocks once every 10 minutes, but in reality, the block generation time is greatly changed due to changes in mining power. Therefore, there is concern that the number of transactions and the transaction completion time will not be stable. In this research, we propose a method to adjust the difficulty of mining by changing the mining power and aim to stabilize the block generation time. As a result, the greater the effect of changes in mining power on the overall mining power, the more effective it was. Even in an actual blockchain network, we think that it is effective when the mining power changes significantly.