{"id":"S85063428","label":"Hydrogen-ion concentration--Measurement","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85063428","normalized_label":"hydrogen-ion concentration--measurement","broader":["http://id.loc.gov/authorities/subjects/sh85063417"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85063428","provider":"lcsh","revision":"1698deab7d791760","taxonomy_revision":"f050b5d4780b1289","title":"Hydrogen-ion concentration--Measurement","url":"/topics/S85063428","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"290486867210946048","address_version":"morton4x16-v1","coordinates":[0,20,18396,4096],"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}