{ "completed_chunks": [ 1, 2, 3, 4, 5, 6, 7, 8 ], "total_records": 748590, "last_updated": "2025-10-26T22:47:41.538113", "chunk_1": { "start_idx": 0, "end_idx": 100000, "processed_at": "2025-10-25T06:34:26.851763" }, "chunk_2": { "start_idx": 100000, "end_idx": 200000, "processed_at": "2025-10-25T12:19:17.566991" }, "chunk_3": { "start_idx": 200000, "end_idx": 300000, "processed_at": "2025-10-25T18:53:34.385617" }, "chunk_4": { "start_idx": 300000, "end_idx": 400000, "processed_at": "2025-10-26T01:51:16.406794" }, "chunk_5": { "start_idx": 400000, "end_idx": 500000, "processed_at": "2025-10-26T07:15:24.449298" }, "chunk_6": { "start_idx": 500000, "end_idx": 600000, "processed_at": "2025-10-26T13:40:03.440805" }, "chunk_7": { "start_idx": 600000, "end_idx": 700000, "processed_at": "2025-10-26T19:17:13.101313" }, "chunk_8": { "start_idx": 700000, "end_idx": 748590, "processed_at": "2025-10-26T22:47:41.538124" } }