ACH (Automatic Clearing High Speed) is a new type of cryptocurrency based on the ACH algorithm, which can effectively resist ASIC and avoid the concentration of computing power. ACH also innovatively adopts the CPoW mining mechanism, which limits the access to mining participation. Through this mechanism, electricity monopoly can be effectively avoided, the amount of digital currency flowing into the market can be reduced, and the income of miners can be increased. There is no longer competition among miners, but cooperation, which makes ACH more secure and trustworthy.