What is Economic X Node (XN) and Economic Node (EN) (VeChain)?

Economic X Nodes (XNs) and Economic Nodes (ENs) are two types of nodes created and used by the VeChain Foundation. They incentivize coin holders to run a node in exchange for tokenized VET rewards, and help maintain network consensus alongside Authority Masternodes. There are four different tiers of XNs depending on the amount of VET staked, while ENs have three different tiers. XNs and ENs are managed via VeChainThor Node smart contracts and interact with the entire blockchain system. As of 2020, no new XNs can be created and existing XN operators are considered long-term supporters of the project.