Shield is building a one-of-a-kind decentralized protocol as a future derivatives infrastructure, enabling global borderless access to finance. We introduce the perpetual option, an innovative derivatives instrument that pioneering the first long-term on-chain options without the effort, risk, or expense of rolling positions. Shield strives to expand on the success of DeFi in the derivatives market. It's a new era for on-chain derivatives traders. (Shield is not a company, with no central power)