See video: https://youtu.be/kTl-y6_6z_A
Presenting a bitcoin sidechain with on-chain utility of hedging price risk of future coinbase cashflows for bitcoiner miners.
Futures contracts are agreements to buy a specific commodity or asset at a specific price and time in the future. Since the actual transaction does not happen until the settlement date, the buyer does not have to pay the seller until that time. At the end of the futures contract, the buyer must pay the seller the agreed upon price, and the seller must "deliver" the commodity to the buyer.
However, before delivery time, the buyer (or seller), can close the contract by selling (or buying) to somebody else. Assuming the price of the futures contracts trade relative to the underlying commodity, these can be used to hedge risk in the underlying commodity, or to speculate with leverage.