An overview of the Hypothesis system
The Hypothesis project delivers a set of components and capabilities that work together to enable a wide range of annotation-powered applications. Here we summarize the state of play in November 2018. The major components are:
An annotation viewer and editor that runs as an overlay in the browser ("the client").
An annotation service that stores, searches, and displays annotations, manages users and groups, and delivers the client into pages that actively embed it ("the service").
A Chrome extension that injects the client into web pages that don't embed it ("the extension").