{"data":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"2900186","name":"Crego Mine"},"operator":{"type":"operator","id":"L11228","name":"Superlite Block"},"controller":{"type":"controller","id":"M06183","name":"CRH PLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01747","name":"Cstw Inc-Crego Block Company"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"1950-01-01","validTo":"1994-08-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L01747|1950-01-01|1994-08-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01571","name":"C S T W Inc"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|M01571|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01571","name":"C S T W Inc"},"object":{"type":"operator","id":"L01747","name":"Cstw Inc-Crego Block Company"},"validFrom":"1950-01-01","validTo":"1994-08-15","current":false,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L01747|1950-01-01|M01571|1950-01-01|119309"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"1989-05-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|M06183|1989-05-25|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"1990-02-02","validTo":"2003-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|M08942|1990-02-02|2003-03-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15488","name":"Csr America"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"1994-08-16","validTo":"2003-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L15488|1994-08-16|2003-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"1994-08-16","validTo":"2003-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|M08942|1994-08-16|2003-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"operator","id":"L15488","name":"Csr America"},"validFrom":"1994-08-16","validTo":"2003-03-31","current":false,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L15488|1994-08-16|M08942|1994-08-16|144599"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"2003-04-01","validTo":"2007-07-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|0042039|2003-04-01|2007-07-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"2003-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|0042039|2003-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"operator","id":"L15488","name":"Csr America"},"validFrom":"2003-04-01","validTo":"2003-05-31","current":false,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L15488|1994-08-16|0042039|2003-04-01|3588"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18590","name":"Rinker Materials West LLC"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"2003-06-01","validTo":"2007-07-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L18590|2003-06-01|2007-07-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042039","name":"Rinker Group Ltd"},"object":{"type":"operator","id":"L18590","name":"Rinker Materials West LLC"},"validFrom":"2003-06-01","validTo":"2007-07-09","current":false,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L18590|2003-06-01|0042039|2003-04-01|3551"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08942","name":"CSR Ltd"},"object":{"type":"operator","id":"L18590","name":"Rinker Materials West LLC"},"validFrom":"2003-06-01","validTo":"2003-03-31","current":false,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L18590|2003-06-01|M08942|1990-02-02|144525"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"2007-07-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|M09149|2007-07-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09149","name":"Cemex S A"},"object":{"type":"operator","id":"L18590","name":"Rinker Materials West LLC"},"validFrom":"2007-07-10","validTo":"2007-07-22","current":false,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L18590|2003-06-01|M09149|2007-07-10|145528"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11228","name":"Crego Block"},"object":{"type":"mine","id":"2900186","name":"Crego Mine"},"validFrom":"2007-07-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L11228|2007-07-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06183","name":"CRH PLC"},"object":{"type":"operator","id":"L11228","name":"Crego Block"},"validFrom":"2007-07-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"2900186","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2900186|L11228|2007-07-23|M06183|1989-05-25|136611"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2900186","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}