HDC is a digital currency based on POC consensus. Use hard disk mining machines to mine, and issue HDC through capacity proof. The hard disk miners participating in mining need to write the Plot in advance. HDC issued a total of 2.1 billion coins, and the project party pre-mined 20% for the development of the subsequent main chain and the promotion of the entire ecological construction. The project plans to launch the main chain before September 2019. It is currently in the research and development stage and needs to solve many technical problems, including compatibility with BHD, Burst multi-mining, anti-Helix attacks, etc. The early project party issued 420 million pre-mined tokens through ERC20.