{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 4,
    "category_code": "72100000",
    "contract_end_date": "2026-06-15",
    "contract_id": "CN3771398",
    "contract_start_date": "2021-05-12",
    "currency": "AUD",
    "current_reported_value": "8045516.03",
    "description": "Building Remediation",
    "events": [
      {
        "absolute_change": "2401306.69",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-25723245c0104657842e68ab786d7a56-4740f06b881b3e7795bc9f3ae8905dfe",
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        "contract_id": "CN3771398",
        "detected_at": "2025-07-23T05:14:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "5b04e97106be3160c5090dc1b658d6b0e860d5805a7059ea6bf3fd2d5df5b6cd",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "7645422.49",
        "notice_id": "CN3771398-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/c9ad75f3-8530-498a-8eff-2417edbe3690",
        "old_value": "5244115.80",
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        "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/CN3771398",
        "summary": "Reported contract value increased by $2,401,306.69 (+45.79%)."
      },
      {
        "absolute_change": "12375.00",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-25723245c0104657842e68ab786d7a56-798c1ef011823ecc93e151a668571cab",
        "after_source_hash": "63025ccc7778eafdd786be516ee031f3ed63c41c6b2636eae04b12745fa0a43f",
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        "contract_id": "CN3771398",
        "detected_at": "2025-07-23T05:14:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "71edfb616bf03b781f41963213742a4b888c2f0b9672083b81aa7cb12024d137",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "7657797.49",
        "notice_id": "CN3771398-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/a9b23ae8-1c81-43f6-943a-c87245904772",
        "old_value": "7645422.49",
        "percentage_change": "0.16",
        "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/CN3771398",
        "summary": "Reported contract value increased by $12,375.00 (+0.16%)."
      },
      {
        "absolute_change": "167090.00",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-25723245c0104657842e68ab786d7a56-be33b47ccea8335bbfe4bc407dd53f39",
        "after_source_hash": "80d62f58e89ff3efcb66ddb17f30c8c896c6684a38a4d2c5a7c80cf47c7c22a6",
        "before_release_id": "prod-25723245c0104657842e68ab786d7a56-798c1ef011823ecc93e151a668571cab",
        "before_source_hash": "63025ccc7778eafdd786be516ee031f3ed63c41c6b2636eae04b12745fa0a43f",
        "contract_id": "CN3771398",
        "detected_at": "2025-07-23T05:14:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "d63a6f2f0d6ab4212bf8d07ae36e1dced770b8e01fff160721353c863349457f",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "7824887.49",
        "notice_id": "CN3771398-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/671578f0-bdff-4bd9-9359-9e0c72185c56",
        "old_value": "7657797.49",
        "percentage_change": "2.18",
        "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/CN3771398",
        "summary": "Reported contract value increased by $167,090.00 (+2.18%)."
      },
      {
        "absolute_change": "220628.54",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-25723245c0104657842e68ab786d7a56-2b0c7fa2f784377487c3d9a8c04917cb",
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        "contract_id": "CN3771398",
        "detected_at": "2025-07-23T05:14:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "8e48a8ee6dda67163c4ed193546935cef1fd92b09c9791f772b9ccec50c70288",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "8045516.03",
        "notice_id": "CN3771398-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/cb1afffe-ee38-4952-83bd-f10142ff65e1",
        "old_value": "7824887.49",
        "percentage_change": "2.82",
        "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/CN3771398",
        "summary": "Reported contract value increased by $220,628.54 (+2.82%)."
      }
    ],
    "evidence_path": "evidence/CN3771398.json",
    "latest_modified_at": "2025-07-23T05:14:00Z",
    "notice_id": "CN3771398-A4",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/cb1afffe-ee38-4952-83bd-f10142ff65e1",
    "original_reported_value": "5244115.80",
    "procurement_method": "Open tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN3771398",
    "supplier_name": "S & A CONTRACTING PTY LTD",
    "title": "4600011644",
    "value_change": "2801400.23",
    "value_change_percentage": "53.42",
    "versions": [
      {
        "agency_name": "Department of Defence",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3771398",
        "supplier_name": "S & A CONTRACTING PTY LTD",
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3771398",
        "supplier_name": "S & A CONTRACTING PTY LTD",
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      {
        "agency_name": "Department of Defence",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3771398",
        "supplier_name": "S & A CONTRACTING PTY LTD",
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3771398",
        "supplier_name": "S & A CONTRACTING PTY LTD",
        "title": "4600011644"
      },
      {
        "agency_name": "Department of Defence",
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        "contract_end_date": "2026-06-15",
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        "currency": "AUD",
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        "notice_id": "CN3771398-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/cb1afffe-ee38-4952-83bd-f10142ff65e1",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3771398",
        "supplier_name": "S & A CONTRACTING PTY LTD",
        "title": "4600011644"
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    ]
  },
  "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"
  }
}