Keep Network is the privacy layer of Ethereum, which can be used to save private data offline. KEEP can help contracts utilize the full potential of public blockchains.
KEEP is an Ethereum token that powers Keep Network, a platform designed to connect public blockchains and private data. One of the first products of the Keep Network is an Ethereum token representing 1 Bitcoin, called tBTC. Keep Network enables users to deposit Bitcoin and redeem tokenized tBTC, which can then be spent within the Ethereum ecosystem without a centralized intermediary.

Keep Network's native token is KEEP.
KEEP is a work token - holding it confers the right to perform key functions on the network. It also holds governance voting rights dependent on KIP. Token holders must delegate a minimum amount of KEEP as collateral to qualify.