{"carrier":{"dot_number":"1274575","legal_name":"SIGNAL ZERO TRANSPORTATION INC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"5230 STATE ROAD 60 EAST 119","phy_city":"DOVER","phy_state":"FL","phy_zip":"33527","phy_country":"US","phone":"8136508358","mc_number":"MC-527920","mc_number_2":"","mc_number_3":"","carrier_operation":"C","hm_indicator":"N","power_units":1,"total_drivers":1,"total_cdl":1,"mcs150_mileage":100000,"mcs150_mileage_year":"2004","mcs150_date":"20050516 1834","add_date":"20040810","officer_1":"EMMA I STILES","officer_2":"DAVID S STILES","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 01:44:12","updated_at":"2026-05-16 01:44:12"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"1274575","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":"1274575"},"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)"}}