{
  "contract": {
    "agency_name": "Department of Employment and Workplace Relations",
    "amendment_count": 1,
    "category_code": "80131500",
    "contract_end_date": "2021-05-23",
    "contract_id": "CN4265574",
    "contract_start_date": "2010-05-24",
    "currency": "AUD",
    "current_reported_value": "281871117.90",
    "description": "Contract description not published",
    "events": [
      {
        "absolute_change": "261991338.45",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-4bee91bcdf564e49b9b485d971c5bc51-0b8840e623ae3d11ac9ef17aa6194d42",
        "after_source_hash": "8b3aa49848567b6327a002426378e0ac91e21ae417955754f9e294806d48fc8a",
        "before_release_id": "prod-4bee91bcdf564e49b9b485d971c5bc51-be147dd1727e354fbec9938c381aa7e1",
        "before_source_hash": "7bd65aae6c513c725b658b373ccb056ba905264717941d50271bf59a1cb18903",
        "contract_id": "CN4265574",
        "detected_at": "2026-07-31T03:17:45Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "b70b486926e653ebb325331aea564781d0ce9c9971befca5572d610c785a2bf8",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "281871117.90",
        "notice_id": "CN4265574-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/eb35c144-b32a-4ee6-8c4f-310d033a39f1",
        "old_value": "19879779.45",
        "percentage_change": "1317.88",
        "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/CN4265574",
        "summary": "Reported contract value increased by $261,991,338.45 (+1317.88%)."
      }
    ],
    "evidence_path": "evidence/CN4265574.json",
    "latest_modified_at": "2026-07-31T03:17:45Z",
    "notice_id": "CN4265574-A1",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/eb35c144-b32a-4ee6-8c4f-310d033a39f1",
    "original_reported_value": "19879779.45",
    "procurement_method": "Open tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN4265574",
    "supplier_name": "WALKER ASSET HOLDINGS PTY LIMITED",
    "title": null,
    "value_change": "261991338.45",
    "value_change_percentage": "1317.88",
    "versions": [
      {
        "agency_name": "Department of Employment and Workplace Relations",
        "category_code": "80131500",
        "contract_end_date": "2021-05-23",
        "contract_id": "CN4265574",
        "contract_start_date": "2010-05-24",
        "currency": "AUD",
        "description": "Contract description not published",
        "notice_id": "CN4265574",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b0ef1696-66fd-4565-922e-b9ebf12e409e",
        "procurement_method": "Open tender",
        "reported_value": "19879779.45",
        "source_hash": "7bd65aae6c513c725b658b373ccb056ba905264717941d50271bf59a1cb18903",
        "source_modified_at": "2026-07-31T03:12:31Z",
        "source_release_id": "prod-4bee91bcdf564e49b9b485d971c5bc51-be147dd1727e354fbec9938c381aa7e1",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4265574",
        "supplier_name": "WALKER ASSET HOLDINGS PTY LIMITED",
        "title": null
      },
      {
        "agency_name": "Department of Employment and Workplace Relations",
        "category_code": "80131500",
        "contract_end_date": "2021-05-23",
        "contract_id": "CN4265574",
        "contract_start_date": "2010-05-24",
        "currency": "AUD",
        "description": "Contract description not published",
        "notice_id": "CN4265574-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/eb35c144-b32a-4ee6-8c4f-310d033a39f1",
        "procurement_method": "Open tender",
        "reported_value": "281871117.90",
        "source_hash": "8b3aa49848567b6327a002426378e0ac91e21ae417955754f9e294806d48fc8a",
        "source_modified_at": "2026-07-31T03:17:45Z",
        "source_release_id": "prod-4bee91bcdf564e49b9b485d971c5bc51-0b8840e623ae3d11ac9ef17aa6194d42",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN4265574",
        "supplier_name": "WALKER ASSET HOLDINGS PTY LIMITED",
        "title": null
      }
    ]
  },
  "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"
  }
}