{"carrier":{"dot_number":"51820","legal_name":"JOHN HIMMER TRANSFER INC","dba_name":"","entity_type":"OTHER-UNKNOWN;AUTHORIZED FOR HIRE","operating_status":"OTHER-UNKNOWN;AUTHORIZED FOR HIRE","phy_street":"5200 GRAND AVE","phy_city":"PITTSBURGH","phy_state":"PA","phy_zip":"15225-1339","phy_country":"US","phone":"4123313525","mc_number":"MC-76663","mc_number_2":"","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":3,"total_drivers":3,"total_cdl":0,"mcs150_mileage":0,"mcs150_mileage_year":"","mcs150_date":"20041002 0000","add_date":"19740601","officer_1":"","officer_2":"","fleet_size_class":"B","business_type":"CORPORATION","duns_number":"8810905","crash_rate":0,"prior_revoke_flag":"","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":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"51820","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":"51820"},"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)"}}