{"carrier":{"dot_number":"1877231","legal_name":"SIGMA FREIGHT CARRIERS INC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"17109 GOLDEN SPIKE TRL","phy_city":"LATHROP","phy_state":"CA","phy_zip":"95330","phy_country":"US","phone":"2099838021","mc_number":"MC-677427","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":1,"total_drivers":1,"total_cdl":1,"mcs150_mileage":115000,"mcs150_mileage_year":"2024","mcs150_date":"20250115 1801","add_date":"20090414","officer_1":"KAMALJIT KAUR","officer_2":"HARJINDER SINGH","fleet_size_class":"A","business_type":"","duns_number":"","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:48:43","updated_at":"2026-05-16 01:48:43"},"crashes":{"total":10,"fatal":3,"injury":2},"safety_scores":[],"freightproof":{"dot_number":"1877231","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":"1877231"},"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)"}}