Bumper is a decentralised software application which establishes markets for measuring and exchanging blockchain-based asset price risk. It provides a set of mechanisms and functions which allow users to protect the value of cryptocurrencies (such as Ether (ETH), wrapped Bitcoin (wBTC), and others) by holding deposits of a price-volatile token for a fixed period of time. These deposits are pooled, and collectively incur a regular, dynamic premium. Those who take a price protection position in the protocol are known as “Takers”.