{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 5,
    "category_code": "80161500",
    "contract_end_date": "2026-06-30",
    "contract_id": "CN3894638",
    "contract_start_date": "2022-07-01",
    "currency": "AUD",
    "current_reported_value": "4323984.15",
    "description": "Technical Services",
    "events": [
      {
        "absolute_change": "1356016.92",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-f4f09ef6b5683ca0847b73b22f62f928",
        "after_source_hash": "d48c4ffdf5b45ef69b99d140907a71efc4aea8f377ca539b06b636e0dd083c52",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-150b7ac5bd3530749f54a80b3bd4fa02",
        "before_source_hash": "bfa40dc5edc70455c0d094f72a0a4717c80f3f6abc7ad8d1869fa53d6550dc4d",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "0dc24a7c719ea46a9ac6409d5cc1d4f3174b2c36b77d0b9bd208415323686dff",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "2855766.60",
        "notice_id": "CN3894638-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/bd46ae57-1c4f-4fd8-bffe-942e07bae4f3",
        "old_value": "1499749.68",
        "percentage_change": "90.42",
        "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/CN3894638",
        "summary": "Reported contract value increased by $1,356,016.92 (+90.42%)."
      },
      {
        "absolute_change": "1206886.55",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-7a14b344a9f13de6b7b119fae1555bc2",
        "after_source_hash": "ee1b56fd5dca642c6463bdf122d38e6744e4dc518bf2d20473941977301c1512",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-f4f09ef6b5683ca0847b73b22f62f928",
        "before_source_hash": "d48c4ffdf5b45ef69b99d140907a71efc4aea8f377ca539b06b636e0dd083c52",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "4379393f506718174cd6fef88537912883b595f9fa2a0b6711e300f09c84ff6b",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "4062653.15",
        "notice_id": "CN3894638-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/68b509d8-a6e9-496a-8339-d89a9649dcb7",
        "old_value": "2855766.60",
        "percentage_change": "42.26",
        "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/CN3894638",
        "summary": "Reported contract value increased by $1,206,886.55 (+42.26%)."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-7a14b344a9f13de6b7b119fae1555bc2",
        "after_source_hash": "ee1b56fd5dca642c6463bdf122d38e6744e4dc518bf2d20473941977301c1512",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-f4f09ef6b5683ca0847b73b22f62f928",
        "before_source_hash": "d48c4ffdf5b45ef69b99d140907a71efc4aea8f377ca539b06b636e0dd083c52",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "57d0725469ede89ee0aae99ad3b27066cb7f46301ce0a291685a0bae3b83f8b1",
        "field_label": "Supplier Name",
        "field_name": "supplier_name",
        "new_value": "DOWNER PROFESSIONAL SERVICES PTY LT",
        "notice_id": "CN3894638-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/68b509d8-a6e9-496a-8339-d89a9649dcb7",
        "old_value": "AGIS GROUP PTY LTD",
        "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/CN3894638",
        "summary": "Supplier changed."
      },
      {
        "absolute_change": "-71175.88",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-218b1d51cb193236898854789cec97c6",
        "after_source_hash": "1ff37fe8cfe85fd8eae0e815ac769966baf1098a2a4fece16740314f05646885",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-7a14b344a9f13de6b7b119fae1555bc2",
        "before_source_hash": "ee1b56fd5dca642c6463bdf122d38e6744e4dc518bf2d20473941977301c1512",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "decrease",
        "duration_change_days": null,
        "event_id": "4ba8543fa8529d52549dba89c1f2b17877356cd2bd216c48765e528fc0f481df",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "3991477.27",
        "notice_id": "CN3894638-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/18b5acbe-4da5-46a7-942e-5b3dc0bedbd8",
        "old_value": "4062653.15",
        "percentage_change": "-1.75",
        "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/CN3894638",
        "summary": "Reported contract value decreased by $71,175.88 (-1.75%)."
      },
      {
        "absolute_change": "834476.50",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-31fdd7c355de3119ae23597d8bd54dfb",
        "after_source_hash": "8204210e87a1cda7fb12aad0a600b55609f91bde562372c255e7df78b2ffe49d",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-218b1d51cb193236898854789cec97c6",
        "before_source_hash": "1ff37fe8cfe85fd8eae0e815ac769966baf1098a2a4fece16740314f05646885",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "4061b568a91657d05288d94996e2f36d75afecec8b2a33cc04549590d15a30f8",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "4825953.77",
        "notice_id": "CN3894638-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/a14d4595-c17f-4a3d-828b-1808591ff54f",
        "old_value": "3991477.27",
        "percentage_change": "20.91",
        "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/CN3894638",
        "summary": "Reported contract value increased by $834,476.50 (+20.91%)."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-5a92086654843812993f8fc8110f6612",
        "after_source_hash": "3beb42170cf3de06f31f5779a4d788f1761dd7df1a48f6586af8d89ed776f6bf",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-31fdd7c355de3119ae23597d8bd54dfb",
        "before_source_hash": "8204210e87a1cda7fb12aad0a600b55609f91bde562372c255e7df78b2ffe49d",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "424ab95ff2c4ff7bfa480c48f73170024e2ecad943b39e3d68bdc88c7b076614",
        "field_label": "Supplier Name",
        "field_name": "supplier_name",
        "new_value": "DOWNER PROFESSIONAL SERVICES PTY LTD",
        "notice_id": "CN3894638-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/c4641175-ffea-43a2-ae03-de9b01633c34",
        "old_value": "DOWNER PROFESSIONAL SERVICES PTY LT",
        "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/CN3894638",
        "summary": "Supplier changed."
      },
      {
        "absolute_change": "-501969.62",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-5a92086654843812993f8fc8110f6612",
        "after_source_hash": "3beb42170cf3de06f31f5779a4d788f1761dd7df1a48f6586af8d89ed776f6bf",
        "before_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-31fdd7c355de3119ae23597d8bd54dfb",
        "before_source_hash": "8204210e87a1cda7fb12aad0a600b55609f91bde562372c255e7df78b2ffe49d",
        "contract_id": "CN3894638",
        "detected_at": "2025-07-21T03:56:48Z",
        "direction": "decrease",
        "duration_change_days": null,
        "event_id": "dd0877c6f7786625f369c25c06b66d345bfd9851fc5b195d1f67ba437f6b52eb",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "4323984.15",
        "notice_id": "CN3894638-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/c4641175-ffea-43a2-ae03-de9b01633c34",
        "old_value": "4825953.77",
        "percentage_change": "-10.40",
        "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/CN3894638",
        "summary": "Reported contract value decreased by $501,969.62 (-10.40%)."
      }
    ],
    "evidence_path": "evidence/CN3894638.json",
    "latest_modified_at": "2025-07-21T03:56:48Z",
    "notice_id": "CN3894638-A5",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/c4641175-ffea-43a2-ae03-de9b01633c34",
    "original_reported_value": "1499749.68",
    "procurement_method": "Open tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
    "supplier_name": "DOWNER PROFESSIONAL SERVICES PTY LTD",
    "title": "4600036591",
    "value_change": "2824234.47",
    "value_change_percentage": "188.31",
    "versions": [
      {
        "agency_name": "Department of Defence",
        "category_code": "80161500",
        "contract_end_date": "2026-06-30",
        "contract_id": "CN3894638",
        "contract_start_date": "2022-07-01",
        "currency": "AUD",
        "description": "Technical Services",
        "notice_id": "CN3894638",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/98d35466-251a-4105-8026-7b1dd2fb38a7",
        "procurement_method": "Open tender",
        "reported_value": "1499749.68",
        "source_hash": "bfa40dc5edc70455c0d094f72a0a4717c80f3f6abc7ad8d1869fa53d6550dc4d",
        "source_modified_at": "2022-07-12T05:32:51Z",
        "source_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-150b7ac5bd3530749f54a80b3bd4fa02",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
        "supplier_name": "AGIS GROUP PTY LTD",
        "title": "4600036591"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "80161500",
        "contract_end_date": "2026-06-30",
        "contract_id": "CN3894638",
        "contract_start_date": "2022-07-01",
        "currency": "AUD",
        "description": "Technical Services",
        "notice_id": "CN3894638-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/bd46ae57-1c4f-4fd8-bffe-942e07bae4f3",
        "procurement_method": "Open tender",
        "reported_value": "2855766.60",
        "source_hash": "d48c4ffdf5b45ef69b99d140907a71efc4aea8f377ca539b06b636e0dd083c52",
        "source_modified_at": "2025-07-21T03:56:48Z",
        "source_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-f4f09ef6b5683ca0847b73b22f62f928",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
        "supplier_name": "AGIS GROUP PTY LTD",
        "title": "4600036591"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "80161500",
        "contract_end_date": "2026-06-30",
        "contract_id": "CN3894638",
        "contract_start_date": "2022-07-01",
        "currency": "AUD",
        "description": "Technical Services",
        "notice_id": "CN3894638-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/68b509d8-a6e9-496a-8339-d89a9649dcb7",
        "procurement_method": "Open tender",
        "reported_value": "4062653.15",
        "source_hash": "ee1b56fd5dca642c6463bdf122d38e6744e4dc518bf2d20473941977301c1512",
        "source_modified_at": "2025-07-21T03:56:48Z",
        "source_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-7a14b344a9f13de6b7b119fae1555bc2",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
        "supplier_name": "DOWNER PROFESSIONAL SERVICES PTY LT",
        "title": "4600036591"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "80161500",
        "contract_end_date": "2026-06-30",
        "contract_id": "CN3894638",
        "contract_start_date": "2022-07-01",
        "currency": "AUD",
        "description": "Technical Services",
        "notice_id": "CN3894638-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/18b5acbe-4da5-46a7-942e-5b3dc0bedbd8",
        "procurement_method": "Open tender",
        "reported_value": "3991477.27",
        "source_hash": "1ff37fe8cfe85fd8eae0e815ac769966baf1098a2a4fece16740314f05646885",
        "source_modified_at": "2025-07-21T03:56:48Z",
        "source_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-218b1d51cb193236898854789cec97c6",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
        "supplier_name": "DOWNER PROFESSIONAL SERVICES PTY LT",
        "title": "4600036591"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "80161500",
        "contract_end_date": "2026-06-30",
        "contract_id": "CN3894638",
        "contract_start_date": "2022-07-01",
        "currency": "AUD",
        "description": "Technical Services",
        "notice_id": "CN3894638-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/a14d4595-c17f-4a3d-828b-1808591ff54f",
        "procurement_method": "Open tender",
        "reported_value": "4825953.77",
        "source_hash": "8204210e87a1cda7fb12aad0a600b55609f91bde562372c255e7df78b2ffe49d",
        "source_modified_at": "2025-07-21T03:56:48Z",
        "source_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-31fdd7c355de3119ae23597d8bd54dfb",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
        "supplier_name": "DOWNER PROFESSIONAL SERVICES PTY LT",
        "title": "4600036591"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "80161500",
        "contract_end_date": "2026-06-30",
        "contract_id": "CN3894638",
        "contract_start_date": "2022-07-01",
        "currency": "AUD",
        "description": "Technical Services",
        "notice_id": "CN3894638-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/c4641175-ffea-43a2-ae03-de9b01633c34",
        "procurement_method": "Open tender",
        "reported_value": "4323984.15",
        "source_hash": "3beb42170cf3de06f31f5779a4d788f1761dd7df1a48f6586af8d89ed776f6bf",
        "source_modified_at": "2025-07-21T03:56:48Z",
        "source_release_id": "prod-f881f143b03b4bdc8d13390a36a5fa79-5a92086654843812993f8fc8110f6612",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3894638",
        "supplier_name": "DOWNER PROFESSIONAL SERVICES PTY LTD",
        "title": "4600036591"
      }
    ]
  },
  "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"
  }
}