Synths, short for synthetic assets, are digital assets that are designed to mimic the price and performance of real-world assets. They are created using smart contracts on a blockchain platform, and their value is derived from the value of the underlying asset or assets that they are designed to track. Synths can be used for a variety of purposes, including as a way to speculate on the price movements of the underlying asset, as a hedge against risk, or as a way to gain exposure to an asset that would otherwise be difficult or impossible to invest in directly.