{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1700431","name":"Portable 1","status":"Abandoned","status_date":"1992-04-14","mine_type":"Surface","coal_metal":"M","commodity":"Crushed, Broken Limestone NEC","state":"ME","county":"Knox","nearest_town":"?","operator_id":"L10487","operator_name":"Dragon Products Company","controller_id":"0139981","controller_name":"Elementia Materiales","district":"M2","office":"Portsmouth NH Field Office","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":3,"registeredSources":20,"sourceRows":8},"relationships":{"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":"1700431","name":"Portable 1"},"operator":{"type":"operator","id":"L10487","name":"Dragon Products Company"},"controller":{"type":"controller","id":"0139981","name":"Elementia Materiales"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00103","name":"Cianchette Alton"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"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":"1700431|M00103|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00661","name":"Lime Products Corp"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1950-01-01","validTo":"1983-04-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L00661|1950-01-01|1983-04-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00544","name":"Kaler Harold B"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1950-01-01","validTo":"1983-04-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|M00544|1950-01-01|1983-04-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00544","name":"Kaler Harold B"},"object":{"type":"operator","id":"L00661","name":"Lime Products Corp"},"validFrom":"1950-01-01","validTo":"1983-04-17","current":false,"derived":true,"evidenceMineId":"1700431","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L00661|1950-01-01|M00544|1950-01-01|112997"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00062","name":"Cianbro Corp"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1983-04-18","validTo":"1985-03-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L00062|1983-04-18|1985-03-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00103","name":"Cianchette Alton"},"object":{"type":"operator","id":"L00062","name":"Cianbro Corp"},"validFrom":"1983-04-18","validTo":"1985-03-03","current":false,"derived":true,"evidenceMineId":"1700431","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L00062|1983-04-18|M00103|1950-01-01|104201"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07869","name":"Dragon Products Company"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1985-03-04","validTo":"1988-10-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L07869|1985-03-04|1988-10-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06257","name":"Passamaquoddy Tribe"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1985-03-04","validTo":"1988-10-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|M06257|1985-03-04|1988-10-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06257","name":"Passamaquoddy Tribe"},"object":{"type":"operator","id":"L07869","name":"Dragon Products Company"},"validFrom":"1985-03-04","validTo":"1988-10-03","current":false,"derived":true,"evidenceMineId":"1700431","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L07869|1985-03-04|M06257|1985-03-04|138007"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08169","name":"C D N - USA"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1988-10-01","validTo":"2007-02-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|M08169|1988-10-01|2007-02-26"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10487","name":"Dragon Products Company"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"1988-10-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L10487|1988-10-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08169","name":"C D N - USA"},"object":{"type":"operator","id":"L10487","name":"Dragon Products Company"},"validFrom":"1988-10-04","validTo":"2007-02-26","current":false,"derived":true,"evidenceMineId":"1700431","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L10487|1988-10-04|M08169|1988-10-01|142841"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M13214","name":"Cementos Portland Valderrivas S A"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"2007-02-27","validTo":"2016-10-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|M13214|2007-02-27|2016-10-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M13214","name":"Cementos Portland Valderrivas S A"},"object":{"type":"operator","id":"L10487","name":"Dragon Products Company"},"validFrom":"2007-02-27","validTo":"2016-10-25","current":false,"derived":true,"evidenceMineId":"1700431","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L10487|1988-10-04|M13214|2007-02-27|155773"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0139981","name":"Elementia Materiales"},"object":{"type":"mine","id":"1700431","name":"Portable 1"},"validFrom":"2016-10-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|0139981|2016-10-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0139981","name":"Elementia Materiales"},"object":{"type":"operator","id":"L10487","name":"Dragon Products Company"},"validFrom":"2016-10-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"1700431","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1700431|L10487|1988-10-04|0139981|2016-10-26|28352"}}],"coverage":{"historyRecords":6,"edgeCount":16,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"1992-04-14","lastDate":"1992-04-14","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":6,"firstDate":"1950-01-01","lastDate":"1988-10-04","metrics":{"recentRows":0,"currentOperatorTenures":3,"completedOperatorTenures":3},"periods":{},"recentRecords":[]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]}],"safety":{"href":"/api/v1/mines/1700431/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1700431/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"1700431","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}