{"id":"S85103312","label":"Platinum-copper alloys","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85103312","normalized_label":"platinum-copper alloys","broader":["http://id.loc.gov/authorities/subjects/sh85032341","http://id.loc.gov/authorities/subjects/sh85103309"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85103312","provider":"lcsh","revision":"b30e29dae0afd1bf","taxonomy_revision":"f050b5d4780b1289","title":"Platinum-copper alloys","url":"/topics/S85103312","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"864761772144476740","address_version":"morton4x16-v1","coordinates":[0,20,19019,16384],"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}