Happy coin Happycoin, referred to as HPC, happy coin is graphics card currency (GPU), using scrypt algorithm, the total is 80.6 billion, one block is generated every minute, the first 4 blocks are 1.612 billion each, a total of 6.448 100 million, which are respectively used as education support fund, charity relief fund, development and promotion fund, and investment return fund. From the 5th block, 300,000 per block, 10 days later, the output of each block will be reduced by half to 150,000, and then the output will be reduced by 12% every 30 days, and each block will be 300 after 3 years. The difficulty is adjusted every 10 blocks, and there are 3 confirmations for transfer and transaction.