{"carrier":{"dot_number":"2148603","legal_name":"MASTELLER TRUCKING LLC","dba_name":"","entity_type":"AUTHORIZED FOR HIRE","operating_status":"AUTHORIZED FOR HIRE","phy_street":"1422 WILLOW ST SE","phy_city":"LACEY","phy_state":"WA","phy_zip":"98503","phy_country":"US","phone":"3607917820","mc_number":"MC-747564","mc_number_2":"MC-747564","mc_number_3":"","carrier_operation":"A","hm_indicator":"N","power_units":1,"total_drivers":2,"total_cdl":2,"mcs150_mileage":120000,"mcs150_mileage_year":"2012","mcs150_date":"20130325 0000","add_date":"20110429","officer_1":"CHRISTOPHER J MASTELLER","officer_2":"JANET L MURPHY","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 01:50:51","updated_at":"2026-05-16 01:50:51"},"crashes":{"total":0,"fatal":null,"injury":null},"safety_scores":[],"freightproof":{"dot_number":"2148603","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":"2148603"},"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)"}}