{"id":"S2012003137","label":"Iridium alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2012003137","normalized_label":"iridium alloys","broader":["http://id.loc.gov/authorities/subjects/sh85136946"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2012003137","provider":"lcsh","revision":"caffcf4e287f91aa","taxonomy_revision":"f050b5d4780b1289","title":"Iridium alloys","url":"/topics/S2012003137","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4630835398120203814","address_version":"morton4x16-v1","coordinates":[0,479,45805,1024],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}