Information-Sharing Pipeline

In this paper we discuss a proposal for creating an information sharing pipeline/real-time information channel, where all stakeholders would be able to engage in exchange/verification of information about entities in real time. The entities in question include personal and organizational names as well as subject headings from different controlled vocabularies. The proposed solution is a shared information pipeline where all stakeholders/agents would be able to share and exchange data about entities in real time. Three W3C recommended protocols are considered as potential solutions: the Linked Data Notifications protocol, the ActivityPub protocol, and the WebSub protocol. We compare and explore the three protocols for the purpose of identifying the best way to create an information sharing pipeline that would provide access to most up to date information to all stakeholders.