{"carrier":{"dot_number":"3212537","legal_name":"R T REX TRANSPORT LLC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"3571 W CRAB APPLE CIRCLE","phy_city":"TAYLORSVILLE","phy_state":"UT","phy_zip":"84129","phy_country":"US","phone":"8019719829","mc_number":"MC-1003534","mc_number_2":"MC-1082701","mc_number_3":"","carrier_operation":"A","hm_indicator":"Y","power_units":1,"total_drivers":2,"total_cdl":2,"mcs150_mileage":95000,"mcs150_mileage_year":"2020","mcs150_date":"20211007 0000","add_date":"20181114","officer_1":"REX LARSON","officer_2":"","fleet_size_class":"A","business_type":"","duns_number":"","crash_rate":8,"prior_revoke_flag":"","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:58:05","updated_at":"2026-05-16 01:58:05"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"3212537","record_status":"no_vetting_yet","what_this_proves":"FMCSA-sourced carrier data cached by FreightProof. No signed vetting record exists yet; run one to generate a tamper-evident proof-of-checking.","data_hash":null,"vetting_date":null,"verify":null,"run_full_vetting":{"endpoint":"https://freight.rootz.global/mcp","tool":"freight_carrier_vet","arguments":{"dot_number":"3212537"},"sealed_evidence_tool":"freight_create_evidence"},"ai_discovery":"https://freight.rootz.global/.well-known/ai","data_source":"FMCSA (Census, Crash, Inspection, Enforcement)","legal_basis":"Montgomery v. Caribe Transport II, LLC, 608 U.S. ___ (2026)"}}