Several times a year, the same question comes up on Twitter or in one the metadata/library/archives Slacks: “Does anyone know working reconciliation service for LCSH?”1 The person tends to be using something like OpenRefine to match a bunch of textual subject headings with their appropriate LC linked data URIs. For example, the complex subject “Brewery workers–Labor unions” is represented by http://id.loc.gov/authorities/subjects/sh85136543. But the Library of Congress doesn’t off...
