{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 1,
    "category_code": "46170000",
    "contract_end_date": "2032-08-31",
    "contract_id": "CN4050683",
    "contract_start_date": "2024-03-22",
    "currency": "AUD",
    "current_reported_value": "644799717.98",
    "description": "Joint Air Battle Management System",
    "events": [
      {
        "absolute_change": "20183614.98",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-52caf7a2b84a4e3ea38c175e12ad8881-15fad58ae2b437cfbec5c6a576f0a5d6",
        "after_source_hash": "dfd940e75bfc7db260cf15d56fa2a67b3d03bc6efaf35dbca1348a619eebd839",
        "before_release_id": "prod-52caf7a2b84a4e3ea38c175e12ad8881-80895b1a40423ef1991918ca42539cea",
        "before_source_hash": "4014019bc1e9510887ad6cc229e0e05f42996c744785296a030f3eb0545ea1d9",
        "contract_id": "CN4050683",
        "detected_at": "2026-07-16T03:10:36Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "b5ae39a9985ce8a150346fe57e43191a93f5ab7fbc2b4641fd3b2d1c6d71027c",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "644799717.98",
        "notice_id": "CN4050683-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/0d85e0f7-e04c-4565-9419-5cf06727d197",
        "old_value": "624616103.00",
        "percentage_change": "3.23",
        "source_license": "https://creativecommons.org/licenses/by/3.0/au/",
        "source_publisher": "Australian Government Department of Finance",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4050683",
        "summary": "Reported contract value increased by $20,183,614.98 (+3.23%)."
      }
    ],
    "evidence_path": "evidence/CN4050683.json",
    "latest_modified_at": "2026-07-16T03:10:36Z",
    "notice_id": "CN4050683-A1",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/0d85e0f7-e04c-4565-9419-5cf06727d197",
    "original_reported_value": "624616103.00",
    "procurement_method": "Limited tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN4050683",
    "supplier_name": "LOCKHEED MARTIN AUSTRALIA PTY LTD",
    "title": "4600069747",
    "value_change": "20183614.98",
    "value_change_percentage": "3.23",
    "versions": [
      {
        "agency_name": "Department of Defence",
        "category_code": "46170000",
        "contract_end_date": "2032-08-31",
        "contract_id": "CN4050683",
        "contract_start_date": "2024-03-22",
        "currency": "AUD",
        "description": "Joint Air Battle Management System",
        "notice_id": "CN4050683",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/5028b509-e792-47f3-b99c-3c8eefc5eb0a",
        "procurement_method": "Limited tender",
        "reported_value": "624616103.00",
        "source_hash": "4014019bc1e9510887ad6cc229e0e05f42996c744785296a030f3eb0545ea1d9",
        "source_modified_at": "2024-05-02T04:59:30Z",
        "source_release_id": "prod-52caf7a2b84a4e3ea38c175e12ad8881-80895b1a40423ef1991918ca42539cea",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4050683",
        "supplier_name": "LOCKHEED MARTIN AUSTRALIA PTY LTD",
        "title": "4600069747"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "46170000",
        "contract_end_date": "2032-08-31",
        "contract_id": "CN4050683",
        "contract_start_date": "2024-03-22",
        "currency": "AUD",
        "description": "Joint Air Battle Management System",
        "notice_id": "CN4050683-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/0d85e0f7-e04c-4565-9419-5cf06727d197",
        "procurement_method": "Limited tender",
        "reported_value": "644799717.98",
        "source_hash": "dfd940e75bfc7db260cf15d56fa2a67b3d03bc6efaf35dbca1348a619eebd839",
        "source_modified_at": "2026-07-16T03:10:36Z",
        "source_release_id": "prod-52caf7a2b84a4e3ea38c175e12ad8881-15fad58ae2b437cfbec5c6a576f0a5d6",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4050683",
        "supplier_name": "LOCKHEED MARTIN AUSTRALIA PTY LTD",
        "title": "4600069747"
      }
    ]
  },
  "disclaimer": "ContractDelta identifies changes in publicly reported procurement records. A change is not evidence of misconduct. Contract amendments can result from legitimate changes in scope, timing, pricing, reporting, or data correction.",
  "generated_at": "2026-07-17T05:22:06Z",
  "schema_version": "1.0",
  "source": {
    "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
    "coverage": {
      "amended_contracts_discovered": 851,
      "amended_contracts_selected": 20,
      "amended_contracts_skipped": 831,
      "max_amended_contracts": 20,
      "mode": "bounded_amendments",
      "query_end": "2026-07-20T23:59:59.999999Z",
      "query_start": "2026-07-12T00:00:00Z",
      "selection_method": "Explicit amendment contracts were ranked by current reported value, then source modification time and contract ID. Only the highest-ranked bounded set was processed."
    },
    "license": "https://creativecommons.org/licenses/by/3.0/au/",
    "name": "AusTender OCDS API",
    "publisher": "Australian Government Department of Finance"
  }
}