{"id":"S85046471","label":"Explosive hardening","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85046471","normalized_label":"explosive hardening","broader":["http://id.loc.gov/authorities/subjects/sh85014788","http://id.loc.gov/authorities/subjects/sh85128456"],"aliases":["Hardening, Explosive"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85046471","provider":"lcsh","revision":"3d97dc6381f1aa54","taxonomy_revision":"f050b5d4780b1289","title":"Explosive hardening","url":"/topics/S85046471","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290636383612437060","address_version":"morton4x16-v1","coordinates":[0,20,18131,7168],"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}