nternational debt, also known as foreign debt, is the entire debt with contractual repayment obligations, including the principal to be repaid and the interest to be paid, that has been allocated to a non-resident by a resident of a country at any given time.
Ethereum is more effective than pure cryptocurrency. Through Ethereum, users can create any decentralized application (i.e. DApp) and smart contract. Theoretically, programmable Ethereum can be used for any economic or governance activities.
In short, Ethereum is similar to the blockchain version of Android and iOS systems, a blockchain APP platform. Ethereum is a global open source platform for decentralized applications (DApp). The name comes from Ether and the suffix ruem (Greek meaning is "oil")