Blockchain technology has been envisaged to commence an era of decentralised applications and services (DApps) without the need for a trusted intermediary. Such DApps open a marketplace in which services are delivered to end-users by contributors which are then incentivised by cryptocurrencies in an automated, peer-to-peer, and trustless fashion. However, blockchain, consolidated by smart contracts, only ensures on-chain data security, autonomy and integrity of the business logic execution defined in smart contracts. It cannot guarantee the quality of service of DApps, which entirely depends on the services’ performance. Thus, there is a critical need for a trust system to reduce the risk of dealing with fraudulent counterparts in a blockchain network. These reasons motivate us to develop a fully decentralised trust framework deployed on top of a blockchain platform, operating along with DApps in the marketplace to demoralise deceptive entities while encouraging trustworthy ones. The trust system works as an underlying decentralised service providing a feedback mechanism for end-users and maintaining trust relationships among them in the ecosystem accordingly. We believe this research fortifies the DApps ecosystem by introducing an universal trust middleware for DApps as well as shedding light on the implementation of a decentralised trust system.

已经设想，区块链技术将开始一个去中心化的应用程序和服务（DApps）时代，而无需信任的中介机构。此类 DApp 打开了一个市场，在该市场中，贡献者将服务交付给最终用户，然后这些贡献者以自动化、点对点和去信任的方式受到加密货币的激励。但是，通过智能合约整合的区块链只能确保智能合约中定义的业务逻辑执行的链上数据安全性、自主性和完整性。它无法保证 DApp 的服务质量，这完全取决于服务的性能。因此，迫切需要一个信任系统来降低与区块链网络中的欺诈对手打交道的风险。这些原因促使我们开发一个部署在区块链平台之上的完全去中心化的信任框架，与市场上的 DApp 一起运行，以挫败欺骗实体的士气，同时鼓励值得信赖的实体。信任系统作为底层的去中心化服务，为终端用户提供反馈机制，并相应地在生态系统中维护他们之间的信任关系。我们相信这项研究通过为 DApp 引入通用信任中间件并阐明去中心化信任系统的实施，从而加强了 DApp 生态系统。信任系统作为底层的去中心化服务，为终端用户提供反馈机制，并相应地在生态系统中维护他们之间的信任关系。我们相信这项研究通过为 DApp 引入通用信任中间件并阐明去中心化信任系统的实施，从而加强了 DApp 生态系统。信任系统作为底层的去中心化服务，为终端用户提供反馈机制，并相应地在生态系统中维护他们之间的信任关系。我们相信这项研究通过为 DApp 引入通用信任中间件并阐明去中心化信任系统的实施，从而加强了 DApp 生态系统。