Anyone with renBTC will be able to contribute to a 0confirmation liquidity pool. This renBTC will be loaned out to those shifting BTC onto ethereum who have opted into the service. All contributors to the pool will get zeroBTC erc20 token that represents proportional ownership in the liquidity pool. As fees are earned from the loans they are added to the pool, increasing the value of the pool token (much like uniswap). Liquidity token holders can redeem their tokens for renBTC in the pool at any time.