{"carrier":{"dot_number":"1604546","legal_name":"UNIMARK LOWBOY TRANSPORTATION LLC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"10801 CORPORATE DRIVE","phy_city":"PLEASANT PRAIRIE","phy_state":"WI","phy_zip":"53158","phy_country":"US","phone":"2625647282","mc_number":"MC-593409","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"Y","power_units":130,"total_drivers":130,"total_cdl":130,"mcs150_mileage":13471377,"mcs150_mileage_year":"2023","mcs150_date":"20250625 1335","add_date":"20070206","officer_1":"MIKE SMITH","officer_2":"STEPHANIE JOHNSTON","fleet_size_class":"Q","business_type":"","duns_number":"","crash_rate":0.33,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:46:42","updated_at":"2026-05-16 01:46:42"},"crashes":{"total":91,"fatal":6,"injury":38},"safety_scores":[],"freightproof":{"dot_number":"1604546","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":"1604546"},"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)"}}