Realization method of reliable data source of distributed network

The invention relates to a realization method of a reliable data source of a distributed network. Data is acquired from a smart contract by adopting Oracles, which is an entry of the smart contract and the external data, and is a mechanism of connecting a block chain account book of a quantum chain with an exterior. The invention provides a mode of acquiring the data from the exterior of the block chain account book of the quantum chain. A quantum chain system manages identity information of participants through the smart contract, and provides better support for quantum chain system-based financial services, the Oracles is designed on the basis thereof, the smart contract of a block chain can be enabled to be more realistic and to more accord with business rules, and a bridge from a real world to the block chain is built. 本发明涉及种分布式网络的可靠数据源的实现方法，从智能合约获取数据采取Oracles，Oracles为智能合约与外部数据的入口，连接量子链的区块链账本与外部的机制；本发明提供了种从量子链区块链账本外获取数据的方式，量子链系统通过智能合约来管理参与者的身份信息，为基于量子链系统的金融服务供更好的支持，在此基础上，设计了Oracles，可以让区块链的智能合约更实际，更符合商业规则，