{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 3,
    "category_code": "25130000",
    "contract_end_date": "2027-06-01",
    "contract_id": "CN618341",
    "contract_start_date": "2012-05-07",
    "currency": "AUD",
    "current_reported_value": "841266816.16",
    "description": "Aircraft",
    "events": [
      {
        "absolute_change": "395636180.01",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
        "after_source_hash": "863a0e59af47ccb350dc43d4e703ad456acd989a719e33a3cc18c8f6fd967006",
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        "before_source_hash": "2919a4d2efc9a2d290b2635745a7e8eb80974a037f1038acc1b8895dbf1b001a",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "11c0120b569361b532140e1de1f857981c3e527dca0a04b637fd2fc035be511d",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1278039053.01",
        "notice_id": "CN618341-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/589149a9-d93a-7583-ac5d-221833ba0b06",
        "old_value": "882402873.00",
        "percentage_change": "44.84",
        "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/CN618341",
        "summary": "Reported contract value increased by $395,636,180.01 (+44.84%)."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
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        "before_source_hash": "2919a4d2efc9a2d290b2635745a7e8eb80974a037f1038acc1b8895dbf1b001a",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "53f7917b5fcc45ae85bcb8b8c1a9340ee51f1215f67f17c5299b98ae8786f85e",
        "field_label": "Category Code",
        "field_name": "category_code",
        "new_value": "25130000",
        "notice_id": "CN618341-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/589149a9-d93a-7583-ac5d-221833ba0b06",
        "old_value": "25131700",
        "percentage_change": null,
        "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/CN618341",
        "summary": "Category code changed."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
        "after_source_hash": "863a0e59af47ccb350dc43d4e703ad456acd989a719e33a3cc18c8f6fd967006",
        "before_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-77c3e63741f03b3da29122e57314be1f",
        "before_source_hash": "2919a4d2efc9a2d290b2635745a7e8eb80974a037f1038acc1b8895dbf1b001a",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "extension",
        "duration_change_days": 152,
        "event_id": "af7d7ec79d4f99d2ab14b6497964e54582a2f84505fc1fbde146dc346884e4f6",
        "field_label": "Contract End Date",
        "field_name": "contract_end_date",
        "new_value": "2027-06-01",
        "notice_id": "CN618341-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/589149a9-d93a-7583-ac5d-221833ba0b06",
        "old_value": "2026-12-31",
        "percentage_change": null,
        "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/CN618341",
        "summary": "Contract end date extended by 152 days."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
        "after_source_hash": "863a0e59af47ccb350dc43d4e703ad456acd989a719e33a3cc18c8f6fd967006",
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        "before_source_hash": "2919a4d2efc9a2d290b2635745a7e8eb80974a037f1038acc1b8895dbf1b001a",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "de702811b21869a521c16579cb436bc3492cf77c066fc186cb174e28f4b888ac",
        "field_label": "Supplier Name",
        "field_name": "supplier_name",
        "new_value": "FMS ACCOUNT RESERVE BANK OF AUSTRALIA",
        "notice_id": "CN618341-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/589149a9-d93a-7583-ac5d-221833ba0b06",
        "old_value": "Government of the United States of America",
        "percentage_change": null,
        "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/CN618341",
        "summary": "Supplier changed."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
        "after_source_hash": "863a0e59af47ccb350dc43d4e703ad456acd989a719e33a3cc18c8f6fd967006",
        "before_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-77c3e63741f03b3da29122e57314be1f",
        "before_source_hash": "2919a4d2efc9a2d290b2635745a7e8eb80974a037f1038acc1b8895dbf1b001a",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "e25e2bfe92afa45c2bddb762c5c422c4dee2b22d160515b19e8c01f882b5af41",
        "field_label": "Description",
        "field_name": "description",
        "new_value": "Aircraft",
        "notice_id": "CN618341-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/589149a9-d93a-7583-ac5d-221833ba0b06",
        "old_value": "Military fixed wing aircraft",
        "percentage_change": null,
        "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/CN618341",
        "summary": "Description changed."
      },
      {
        "absolute_change": "-434031636.42",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-24c9ee4fd9943ac1a100ea9b30b3472a",
        "after_source_hash": "13d3c9e655fdc053aa0562670914c571720da9f4d7d50c05bd9f22f3c94e71ab",
        "before_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
        "before_source_hash": "863a0e59af47ccb350dc43d4e703ad456acd989a719e33a3cc18c8f6fd967006",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "decrease",
        "duration_change_days": null,
        "event_id": "2245e6ca19d307f1dacb691ba539c44488cc548c34c814a8187a1e6932a38175",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "844007416.59",
        "notice_id": "CN618341-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/d0f98259-ccaf-496f-8827-e540613baeef",
        "old_value": "1278039053.01",
        "percentage_change": "-33.96",
        "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/CN618341",
        "summary": "Reported contract value decreased by $434,031,636.42 (-33.96%)."
      },
      {
        "absolute_change": "-2740600.43",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-ea7ecf540c4f310ba59edd9cd83ada17",
        "after_source_hash": "9a48dca01acbfce9c99552c8bf0225f2fc17f87401e258a26a96b369cf86ca05",
        "before_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-24c9ee4fd9943ac1a100ea9b30b3472a",
        "before_source_hash": "13d3c9e655fdc053aa0562670914c571720da9f4d7d50c05bd9f22f3c94e71ab",
        "contract_id": "CN618341",
        "detected_at": "2025-05-08T07:14:12Z",
        "direction": "decrease",
        "duration_change_days": null,
        "event_id": "a6df0db9d8c3fdeb13ac19d1c0b930953d4b7c81a141c8bb177166081152e4e2",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "841266816.16",
        "notice_id": "CN618341-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/4be86507-2813-4576-bcc7-3fb8d9ce1da7",
        "old_value": "844007416.59",
        "percentage_change": "-0.32",
        "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/CN618341",
        "summary": "Reported contract value decreased by $2,740,600.43 (-0.32%)."
      }
    ],
    "evidence_path": "evidence/CN618341.json",
    "latest_modified_at": "2025-05-08T07:14:12Z",
    "notice_id": "CN618341-A3",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/4be86507-2813-4576-bcc7-3fb8d9ce1da7",
    "original_reported_value": "882402873.00",
    "procurement_method": "Limited tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN618341",
    "supplier_name": "FMS ACCOUNT RESERVE BANK OF AUSTRALIA",
    "title": "ATDSGU",
    "value_change": "-41136056.84",
    "value_change_percentage": "-4.66",
    "versions": [
      {
        "agency_name": "Department of Defence",
        "category_code": "25131700",
        "contract_end_date": "2026-12-31",
        "contract_id": "CN618341",
        "contract_start_date": "2012-05-07",
        "currency": "AUD",
        "description": "Military fixed wing aircraft",
        "notice_id": "CN618341",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/02586e14-cf20-d1d0-0b08-27fccc05fdb8",
        "procurement_method": "Limited tender",
        "reported_value": "882402873.00",
        "source_hash": "2919a4d2efc9a2d290b2635745a7e8eb80974a037f1038acc1b8895dbf1b001a",
        "source_modified_at": "2012-06-19T01:27:14Z",
        "source_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-77c3e63741f03b3da29122e57314be1f",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN618341",
        "supplier_name": "Government of the United States of America",
        "title": "ATDSGU"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "25130000",
        "contract_end_date": "2027-06-01",
        "contract_id": "CN618341",
        "contract_start_date": "2012-05-07",
        "currency": "AUD",
        "description": "Aircraft",
        "notice_id": "CN618341-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/589149a9-d93a-7583-ac5d-221833ba0b06",
        "procurement_method": "Limited tender",
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        "source_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-68f6aeb489bb3d5b8ce558229df918e0",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN618341",
        "supplier_name": "FMS ACCOUNT RESERVE BANK OF AUSTRALIA",
        "title": "ATDSGU"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "25130000",
        "contract_end_date": "2027-06-01",
        "contract_id": "CN618341",
        "contract_start_date": "2012-05-07",
        "currency": "AUD",
        "description": "Aircraft",
        "notice_id": "CN618341-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/d0f98259-ccaf-496f-8827-e540613baeef",
        "procurement_method": "Limited tender",
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        "source_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-24c9ee4fd9943ac1a100ea9b30b3472a",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN618341",
        "supplier_name": "FMS ACCOUNT RESERVE BANK OF AUSTRALIA",
        "title": "ATDSGU"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "25130000",
        "contract_end_date": "2027-06-01",
        "contract_id": "CN618341",
        "contract_start_date": "2012-05-07",
        "currency": "AUD",
        "description": "Aircraft",
        "notice_id": "CN618341-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/4be86507-2813-4576-bcc7-3fb8d9ce1da7",
        "procurement_method": "Limited tender",
        "reported_value": "841266816.16",
        "source_hash": "9a48dca01acbfce9c99552c8bf0225f2fc17f87401e258a26a96b369cf86ca05",
        "source_modified_at": "2025-05-08T07:14:12Z",
        "source_release_id": "prod-02586e1eb4a5e7b7b8dd8144294523c0-ea7ecf540c4f310ba59edd9cd83ada17",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN618341",
        "supplier_name": "FMS ACCOUNT RESERVE BANK OF AUSTRALIA",
        "title": "ATDSGU"
      }
    ]
  },
  "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": "2026-07-31T04:07:58Z",
  "schema_version": "1.0",
  "source": {
    "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
    "coverage": {
      "amended_contracts_discovered": 950,
      "amended_contracts_selected": 20,
      "amended_contracts_skipped": 930,
      "max_amended_contracts": 20,
      "mode": "bounded_amendments",
      "query_end": "2026-08-03T23:59:59.999999Z",
      "query_start": "2026-07-26T00:00:00Z",
      "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"
  }
}