{"entity":{"id":65222745,"state":"CO","state_id":"20021151030","entity_name":"NOTTINGHAM SAND & GRAVEL CO.","entity_type":"DPC","entity_type_normalized":"dpc","status":"active","filing_date":"2002-06-04T00:00:00.000","filing_year":2002,"business_age_years":24,"principal_address1":"6653 Derby Mesa Loop","principal_address2":"","principal_city":"Burns","principal_state":"CO","principal_zip":"80426","principal_country":"US","mail_address1":"PO Box 75","mail_address2":"","mail_city":"Burns","mail_state":"CO","mail_zip":"80426","mail_country":"US","location_name":null,"location_address1":null,"location_address2":null,"location_city":null,"location_state":null,"location_zip":null,"fei_ein":null,"jurisdiction":"CO","county":null,"last_transaction_date":null,"report_year_1":null,"report_date_1":null,"report_year_2":null,"report_date_2":null,"report_year_3":null,"report_date_3":null,"agent_name":"Borne Ruth","agent_type":"P","agent_address":"27 Main St Unit 103","agent_city":"Edwards","agent_state":"CO","agent_zip":"81632","process_name":null,"process_address1":null,"process_address2":null,"process_city":null,"process_state":null,"process_zip":null,"source_file":"data.colorado.gov/4ykn-tg5h","fetched_at":"2026-08-09 01:45:54","updated_at":"2026-10-25 01:05:26","last_accessed":null,"status_reason":null,"agent_name_raw":"RUTH BORNE"},"officers":[],"filing_history":[],"status_history":[],"unknown":["status_history: we do not collect status-change histories from the source feeds, so this empty list means we hold none — NOT that this company's status has never changed. Observed changes we DID see are under `history`."],"verified_domains":[],"history":{"observation":{"state":"CO","state_id":"20021151030","first_seen":"2026-08-10 18:23:14","last_seen":"2026-10-25 01:05:26","times_seen":12,"absent_since":null},"changes":[{"id":6272585,"field":"agent_name","old_value":"Ruth Borne","new_value":"RUTH BORNE","observed_at":"2026-08-30 01:35:27","effective_at":null,"source_file":"data.colorado.gov/4ykn-tg5h","proof":{"day":"2026-08-30","chunk":0,"chunk_sha256":"c30216e7d140e912ac923834649ad40c28d168719b2b6c3fbf02d0f10abae5ff","rows_in_chunk":26497,"day_manifest_signature":"F1XuY+nwqaImg0QA/oSlg6rDJNBhcHGks8pz21eDoSqVTbPpFmQVk3mxePQWpYEE11vchbG5NstDLbhkHDb4DA==","signs":"day manifest content_hash","signed_value":"503d243cd396c29841aefc3cc57f05c9f1ea45fc82d93253461d1785a7928a42","chain":"row id -> chunk_sha256 -> manifest.digests[] -> manifest content_hash -> day_manifest_signature (Ed25519, key below)","key_id":"fleet-16ab31fe","first_sealed_at":"2026-08-31 07:18:38","anchor":{"anchored_at":"2026-09-01 06:30:14","merkle_root":"96e39d9658aeb4ca720b27e57b67202cf268aa4f28249720a6381d3b482650a8","leaf_count":127981,"external":"opentimestamps+rfc3161","status":"stamped (btc pending)"},"bytes_url":"https://private.rootz.global/api/changes/chunk/c30216e7d140e912ac923834649ad40c28d168719b2b6c3fbf02d0f10abae5ff","manifest_url":"https://private.rootz.global/api/changes/proof/2026-08-30","manifest_bytes_url":"https://private.rootz.global/api/changes/chunk/503d243cd396c29841aefc3cc57f05c9f1ea45fc82d93253461d1785a7928a42","public_key_url":"https://private.rootz.global/api/changes/pubkey"}}],"suppressed":{"count":1,"by_kind":{"representation":1},"reasons":["Status rows whose old and new values mean the same thing (for example \"A\" and \"active\"). Produced by our move from raw registry codes to canonical values while loaders migrated — nothing happened to the business on those dates."],"note":"These rows remain stored — they are evidence of our own processing bugs, not something to delete quietly. They are excluded from this view because showing them would report our pipeline changing as though the business had. The write path no longer creates them."},"_basis":"observed_at is when WE saw the change. effective_at is when the source says it happened, and is usually null because registries rarely state it. We do not infer it."},"web_contact":null,"provenance_url":"https://private.rootz.global/api/provenance/CO/20021151030"}