Life Science Identifiers (LSID) are a way to name and locate pieces of information on the web. An LSID is a unique identifier for some data, and the LSID protocol specifies a standard way to locate the data (as well as a standard way of describing that data). LSIDs identify biologically significant resources, including species names, concepts, occurrences, and genes or proteins, or data objects that encode information about them. Like other URNs, it becomes actionable when embedded in a URL.
centrally registered identifier