Many nations are discussing the future of cash. Central Banks are studying their role in the digital evolution which will allow them to continue to regulate and fulfill their fiscal responsibilities. Banknotes are a sovereign legal tender issued solely by the Central Bank. Their digital equivalent must also follow the currency laws of the nation. There now exists a technological solution that enables central banks to issue a digital fiat currency instrument that can be transacted in existing networks and payment systems. In this presentation we will discuss how eCurrency’s technology provides a secure and efficient digital instrument whose sovereignty can be ensured and validated.