The document announces the 12th International Conference on Peer-to-Peer Networks and Trust Management to be held in Sydney, Australia from December 23-24, 2022. The conference aims to disseminate new ideas and research in the areas of peer-to-peer systems, applications, grids, overlays and more. Authors are invited to submit papers presenting research, projects, surveys or industry experiences on topics related to peer-to-peer networks, with submission deadline to be determined. Selected papers will be published in the conference proceedings and special issues of related journals.