Starcoin is a hierarchical smart contract and decentralized financial network.Starcoin inherits the excellent security mechanism of Bitcoin and provides the ability to achieve high transaction throughput by improving the PoW algorithm and introducing multi-layer networks. In addition, we have created a layered smart contract model that can provide a secure and stable cryptocurrency infrastructure and meet the performance requirements of DeFi.STC is a native token of the Starcoin network, and its current main uses include:Pay the gas fee for the transaction.Pay for the state space fee (after the activation of the future state billing mechanism).Used for on chain governance voting.In the future, as the ecosystem on the chain matures, STC will have more and more usage scenarios....