Blockchain is an emerging technology that has shaken the financial sector, and which is already perceived as having an impact. A blockchain is a network of many interconnected nodes, both trustworthy and malicious, which can reach a consensus and generate valid data. The resulting information is packed into a block and permanently saved on the network in a tamper-proof way. In this paper, we propose an adaptation of blockchain for securely storing data in a vehicular-based network. Our approach can work for storing data such as traffic events and user reputation. The proposed solution has two interconnected components: the Intelligent Transportation System (ITS) blockchain and the reputation system. The paper presents synthetic tests which validate the use cases of the solution: users reporting speeds and alerts behind which we see a fair reputation system penalising the (wrong/false) users.

中文翻译：

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智能交通系统中的区块链

区块链是一种动摇了金融业的新兴技术，已经被认为具有影响力。区块链是由许多相互连接的节点组成的网络，可信任和恶意的节点可以达成共识并生成有效数据。结果信息打包成一个块，并以防篡改的方式永久保存在网络上。在本文中，我们提出了一种区块链的适应方案，用于在基于车辆的网络中安全地存储数据。我们的方法可以用于存储交通事件和用户信誉等数据。提出的解决方案具有两个相互联系的组件：智能运输系统（ITS）区块链和信誉系统。本文介绍了综合测试，这些测试可验证解决方案的用例：