BDN (Business Data Network) is committed to building a decentralized global business data ecosystem via data validation and tokenization to connect business data supply and demand in the data market. BDN will integrate a consumer authorization system into the network to ensure the development of big data and business intelligence industries is in compliance with law. BDN's critical components in the network are: blockchain-based Distributed Data Chain (DDC) that provides a trusted data storage system on chain; Data Market (DM) that improves business data value transparency and supports secured data transactions, massive data circulation and efficient data value exchange in a decentralized business data exchange; and Consumer Authorization System (CAS) to ensure consumers' acknowledgement, authorization and revocation rights in the process of data circulation and ensure the process is in compliance of GDPR. BDN（Business Data Network）致力于构建去中心化的全球商业数据生态体系，通过数据通证化，链接数据的需求和供给，并有效结合消费者授权机制，在合规合情的基础上促进大数据和商业智能产业的发展。BDN打造基于区块链技术的分布式数据链DDC（Distributed Data Chain）提供可靠的数据存储和上链；打造数据市场DM（Data Market）提供数据流通所需的安全交易能力、完善的交易匹配机制、海量交易支持和匿名交易能力；提倡消费者授权机制CAS（Consumer Authorization System）保障数据流通过程中消费者知情、授权和撤销权，符合GDPR规则。