{"carrier":{"dot_number":"272132","legal_name":"J J MAST TRUCKING INC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE;EXEMPT FOR HIRE","operating_status":"AUTHORIZED FOR HIRE;EXEMPT FOR HIRE","phy_street":"6076 TR 331","phy_city":"MILLERSBURG","phy_state":"OH","phy_zip":"44654","phy_country":"US","phone":"3306741981","mc_number":"MC-179908","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":2,"total_drivers":2,"total_cdl":2,"mcs150_mileage":500000,"mcs150_mileage_year":"2022","mcs150_date":"20230228 1115","add_date":"19860423","officer_1":"MARY MAST","officer_2":"","fleet_size_class":"B","business_type":"INDIVIDUAL","duns_number":"","crash_rate":0,"prior_revoke_flag":"N","prior_revoke_dot":"","cargo_types":"C","source":"census","ingested_at":"2026-05-16 01:36:51","updated_at":"2026-05-16 01:36:51"},"crashes":{"total":7,"fatal":0,"injury":5},"safety_scores":[],"freightproof":{"dot_number":"272132","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":"272132"},"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)"}}