{"carrier":{"dot_number":"3274368","legal_name":"TRANSPORTATION COURIER LOGISTICS LLC","dba_name":"GRINDSTONE TRANSPORT","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"608 COMANCHE CR 470","phy_city":"DUBLIN","phy_state":"TX","phy_zip":"76446","phy_country":"US","phone":"8174752171","mc_number":"MC-1039209","mc_number_2":"FF-32208","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":2,"total_drivers":2,"total_cdl":2,"mcs150_mileage":103433,"mcs150_mileage_year":"2023","mcs150_date":"20240731 1501","add_date":"20190416","officer_1":"JENNIFER MARTINEZ","officer_2":"JOHNNY MARTINEZ","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 01:58:42","updated_at":"2026-05-16 01:58:42"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"3274368","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":"3274368"},"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)"}}