{"id":"S85011130","label":"Balance springs","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85011130","normalized_label":"balance springs","broader":["http://id.loc.gov/authorities/subjects/sh85027100","http://id.loc.gov/authorities/subjects/sh85127022"],"aliases":["Hairsprings"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85011130","provider":"lcsh","revision":"2e3b7bbe5d98d60c","taxonomy_revision":"f050b5d4780b1289","title":"Balance springs","url":"/topics/S85011130","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10124237098941825600","address_version":"morton4x16-v1","coordinates":[0,20,17578,59392],"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}