{"id":"S85009316","label":"Atomic clocks","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85009316","normalized_label":"atomic clocks","broader":["http://id.loc.gov/authorities/subjects/sh85009317","http://id.loc.gov/authorities/subjects/sh85027100","http://id.loc.gov/authorities/subjects/sh85051935"],"aliases":["Clocks, Atomic"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85009316","provider":"lcsh","revision":"022ae83efaa1f4c2","taxonomy_revision":"f050b5d4780b1289","title":"Atomic clocks","url":"/topics/S85009316","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9513858611940574784","address_version":"morton4x16-v1","coordinates":[0,20,17550,36864],"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}