In recent years, the rapid development of the Internet digital advertising (IDA) market has brought many issues. Low-quality advertisements (ADs) have caused significant troubles for Internet users, and the “AD fraud” has plunged the IDA ecosystem into a crisis of trust. The blockchain’s trusted computing model provides new ideas for solving the above problems. In this paper, we designed and implemented a blockchain-based digital advertising media system (B²DAM), where the Hyperledger is used as the implementation platform. Our B²DAM system integrates distributed ledger, multi-chain, smart contracts, and consensus mechanisms to ensure decentralization and multi-party maintenance of immutable data. We implemented business logic in smart contracts and Hyperledger SDK. The experiments show the transaction throughput can reach 550 tps and the system can meet the application requirements.

近年来，互联网数字广告（IDA）市场的快速发展带来了许多问题。低质量的广告（AD）给互联网用户带来了严重的麻烦，“ AD欺诈”使IDA生态系统陷入了信任危机。区块链的可信计算模型为解决上述问题提供了新思路。在本文中，我们设计和实现了基于区块链的数字广告媒体系统（B ² DAM），其中Hyperledger被用作实现平台。我们的B ²DAM系统集成了分布式分类帐，多链，智能合约和共识机制，以确保不可变数据的分散化和多方维护。我们在智能合约和Hyperledger SDK中实现了业务逻辑。实验表明，交易吞吐量可以达到550 tps，系统可以满足应用需求。