BTS-PD: A Blockchain Based Traceability System for P2P Distribution

The application of peer to peer (P2P) technology has brought convenience to people, however, it has caused some social problems such as copyright infringement and the spread of Trojans and viruses. In order to effectively monitor malicious activities and security violations, it is essential to build a data traceability framework, with which each data object in the P2P environment can be tracked and recorded. Blockchain technology provides a promising mechanism for establishing a file distribution traceability system due to the natures, such as openness, decentralization and anti-tampering. In this article, we propose BTS-PD, a blockchain based traceability system for P2P distribution. The related information of P2P seed file is stored in the blockchain to ensure the credibility of the traceability information. InterPlanetary File System (IPFS) is used to store the P2P seed to expand the storage of the fabric blockchain. Based on BTS-PD, it becomes more credible and convenient for tracking security of P2P distribution. Implemented based on the Hyperledger Fabric, the experiment results show that BTS-PD can work well and support normal P2P distribution.