{"carrier":{"dot_number":"3300374","legal_name":"CHECKMATE TOWING & TRANSPORT LLC","dba_name":"CHECKMATE TOWING & TRANSPORT","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"13550 FULLERTON STREET","phy_city":"DETROIT","phy_state":"MI","phy_zip":"48227","phy_country":"US","phone":"3138189566","mc_number":"MC-1373969","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"Y","power_units":2,"total_drivers":3,"total_cdl":0,"mcs150_mileage":18522,"mcs150_mileage_year":"2023","mcs150_date":"20240412 1407","add_date":"20190617","officer_1":"MARIA JOHNSON","officer_2":"HERMAN JOHNSON JR","fleet_size_class":"B","business_type":"","duns_number":"","crash_rate":0,"prior_revoke_flag":"","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:58:59","updated_at":"2026-05-16 01:58:59"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"3300374","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":"3300374"},"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)"}}