O2&B is a company that designs and manufactures water filtration systems. It has fully automated technology, process monitoring technology, customized community water supply installation technology, MCDI purification technology, CDI community technology, and specializes in small village water supply installation worldwide. The PURI/02 blockchain system established by O2&B has the core value of 1:1 value exchange. The cryptocurrency and coins received by individuals in the blockchain will be exchanged in the international water market, including the final process from the system to large factories, which will be controlled by the same blockchain....