The Open Data Institute and Thomson Reuters have published a new white paper, explaining how to use identifiers to create extra value in open data. Identifiers are at the heart of how data becomes linked. It’s a subject that is fundamentally important to the open data community, and to the evolution of the web itself. However, identifiers are also in relatively early stages of adoption, and not many are aware of what they are. w Put simply, identifiers are labels used to refer to an object being discussed or exchanged, such as products, companies or people. The foundation of the web is formed by connections that hold pieces of information together. Identifiers are the anchors that facilitate those links.