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Observed changes we DID see are under `history`."],"verified_domains":[],"history":{"observation":{"state":"CO","state_id":"20021140201","first_seen":"2026-08-10 18:24:50","last_seen":"2026-09-27 01:24:34","times_seen":8,"absent_since":null},"changes":[{"id":6245162,"field":"principal_city","old_value":"Denver","new_value":"Evergreen","observed_at":"2026-08-23 01:49:35","effective_at":null,"source_file":"data.colorado.gov/4ykn-tg5h","proof":{"day":"2026-08-23","chunk":0,"chunk_sha256":"8b6902f1acc2bf1b837df215a27886cfce136431a0e94b009cd950f551909fab","rows_in_chunk":14326,"day_manifest_signature":"vilVOzTEPat4DNx4TgH6CAPAEKT4i4mhD7cf2MmkBgeny2oO+b6UzRPLMl0Elbi25gD2wYUZ9tO25jBeG6byDw==","signs":"day manifest content_hash","signed_value":"76880712c1cc539895e5d1d24fef9a161bcaecf29301c2856c5f961776f9f6f5","chain":"row id -> chunk_sha256 -> manifest.digests[] -> manifest content_hash -> day_manifest_signature (Ed25519, key below)","key_id":"fleet-16ab31fe","first_sealed_at":"2026-08-24 07:33:10","anchor":{"anchored_at":"2026-08-25 06:30:19","merkle_root":"6b25bfb0b6b2e9a4c05a279a9bf3fd9e968c7c42f47f214ea6856f6531159a15","leaf_count":123870,"external":"opentimestamps+rfc3161","status":"stamped (btc pending)"},"bytes_url":"https://private.rootz.global/api/changes/chunk/8b6902f1acc2bf1b837df215a27886cfce136431a0e94b009cd950f551909fab","manifest_url":"https://private.rootz.global/api/changes/proof/2026-08-23","manifest_bytes_url":"https://private.rootz.global/api/changes/chunk/76880712c1cc539895e5d1d24fef9a161bcaecf29301c2856c5f961776f9f6f5","public_key_url":"https://private.rootz.global/api/changes/pubkey"}},{"id":6245161,"field":"entity_name","old_value":"O'BRIEN CONCRETE PUMPING, LLC","new_value":"O'BRIEN CONCRETE PUMPING, LLC, Dissolved August 20, 2026","observed_at":"2026-08-23 01:49:35","effective_at":null,"source_file":"data.colorado.gov/4ykn-tg5h","proof":{"day":"2026-08-23","chunk":0,"chunk_sha256":"8b6902f1acc2bf1b837df215a27886cfce136431a0e94b009cd950f551909fab","rows_in_chunk":14326,"day_manifest_signature":"vilVOzTEPat4DNx4TgH6CAPAEKT4i4mhD7cf2MmkBgeny2oO+b6UzRPLMl0Elbi25gD2wYUZ9tO25jBeG6byDw==","signs":"day manifest content_hash","signed_value":"76880712c1cc539895e5d1d24fef9a161bcaecf29301c2856c5f961776f9f6f5","chain":"row id -> chunk_sha256 -> manifest.digests[] -> manifest content_hash -> day_manifest_signature (Ed25519, key below)","key_id":"fleet-16ab31fe","first_sealed_at":"2026-08-24 07:33:10","anchor":{"anchored_at":"2026-08-25 06:30:19","merkle_root":"6b25bfb0b6b2e9a4c05a279a9bf3fd9e968c7c42f47f214ea6856f6531159a15","leaf_count":123870,"external":"opentimestamps+rfc3161","status":"stamped (btc pending)"},"bytes_url":"https://private.rootz.global/api/changes/chunk/8b6902f1acc2bf1b837df215a27886cfce136431a0e94b009cd950f551909fab","manifest_url":"https://private.rootz.global/api/changes/proof/2026-08-23","manifest_bytes_url":"https://private.rootz.global/api/changes/chunk/76880712c1cc539895e5d1d24fef9a161bcaecf29301c2856c5f961776f9f6f5","public_key_url":"https://private.rootz.global/api/changes/pubkey"}},{"id":4244838,"field":"status","old_value":"A","new_value":"inactive","observed_at":"2026-08-10 18:24:50","effective_at":null,"source_file":"data.colorado.gov/4ykn-tg5h","change_kind":"ambiguous","proof":{"day":"2026-08-10","chunk":6,"chunk_sha256":"af6edaf081948f315650039052914dcb07230276322464ff0136315666ed4043","rows_in_chunk":100000,"day_manifest_signature":"Dymsc+eKYSDDA3kwtzZkoQbgQLKHx2HVCr5RDZVRhgXgytIzzzRC6AsErhLUnMTFN6DoFfmz1Rxm+k3XgfLpDA==","signs":"day manifest content_hash","signed_value":"c345778a260147a12be20370c129f6a03925536c95b8c08265f53577b320c938","chain":"row id -> chunk_sha256 -> manifest.digests[] -> manifest content_hash -> day_manifest_signature (Ed25519, key below)","key_id":"fleet-16ab31fe","first_sealed_at":"2026-08-12 03:39:49","anchor":{"anchored_at":"2026-08-12 06:30:09","merkle_root":"c1c09abba2e67772bc56e44119bb3d684e5cf63174cca9d0b64d3ce1dc445a14","leaf_count":116422,"external":"opentimestamps+rfc3161","status":"stamped (btc pending)"},"bytes_url":"https://private.rootz.global/api/changes/chunk/af6edaf081948f315650039052914dcb07230276322464ff0136315666ed4043","manifest_url":"https://private.rootz.global/api/changes/proof/2026-08-10","manifest_bytes_url":"https://private.rootz.global/api/changes/chunk/c345778a260147a12be20370c129f6a03925536c95b8c08265f53577b320c938","public_key_url":"https://private.rootz.global/api/changes/pubkey"}}],"suppressed":null,"_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/20021140201"}