{"carrier":{"dot_number":"70289","legal_name":"CONTRACT FREIGHTERS INC","dba_name":"HEARTLAND EXPRESS INC OF IOWA","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"4701 E 32ND STREET","phy_city":"JOPLIN","phy_state":"MO","phy_zip":"64804","phy_country":"US","phone":"4176235229","mc_number":"MC-119399","mc_number_2":"MC-137015","mc_number_3":"MC-137015","carrier_operation":"A","hm_indicator":"Y","power_units":91,"total_drivers":27,"total_cdl":27,"mcs150_mileage":92427172,"mcs150_mileage_year":"2025","mcs150_date":"20260219 1822","add_date":"19740601","officer_1":"BRETT SCHWAB","officer_2":"JOSH HELMICH","fleet_size_class":"P","business_type":"CORPORATION","duns_number":"56385438","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:35:37","updated_at":"2026-05-16 01:35:37"},"crashes":{"total":3642,"fatal":155,"injury":1926},"safety_scores":[],"freightproof":{"dot_number":"70289","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":"70289"},"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)"}}