In order to meet real needs, we present a novel E-payment model and design the corresponding protocol, in which we employ both classical and quantum cryptographic technologies, e.g., classical blockchain, quantum key distribution and quantum proxy blind signature. The protocol cannot only guarantee the anonymity of users but also meet more security requirements. Compared with the existing quantum E-payment protocols, our protocol has two good advantages: one is to use three-qubit entangled states instead of four or more-qubit entangled states to reduce the complexity of quantum resources, and the other is to employ blockchain to make it more robust.

中文翻译：

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一种基于区块链的新型量子电子支付协议

为了满足实际需求，我们提出了一种新颖的电子支付模型并设计了相应的协议，其中我们采用了经典和量子密码技术，例如经典区块链，量子密钥分配和量子代理盲签名。该协议不仅可以保证用户的匿名性，还可以满足更高的安全性要求。与现有的量子电子支付协议相比，我们的协议有两个优点：一是使用三量子位纠缠态代替四个或更多量子位纠缠态，以减少量子资源的复杂性;二是采用区块链使它更强大。