OkCash Cryptocurrency is an open source hybrid Cryptocurrency built using the Proof of Interest Consensus Model (POWPOS model). Its blockchain network, called OK Network, is also an open source public network developed and supported by its volunteers, just like Bitcoin.OkCash is completely self-sustaining and efficient. In addition, it has faster transaction speed and a higher confirmation rate than most other digital currencies. It has very low transaction costs and is suitable for both short-term and long-term mortgages.The OkCash project is also oriented towards the future by supporting highly secure messaging systems, and is ready for next-generation technological revolutions such as the Internet of Things (IoT)....