{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 4,
    "category_code": "83110000",
    "contract_end_date": "2026-06-30",
    "contract_id": "CN3929370",
    "contract_start_date": "2022-07-01",
    "currency": "AUD",
    "current_reported_value": "6223949.47",
    "description": "Data Transmission Services",
    "events": [
      {
        "absolute_change": "291628.87",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-2be9077a445e491eb3e2a7fa06737a76-38f6b12db6683d56936264bb7b9e52d4",
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        "contract_id": "CN3929370",
        "detected_at": "2025-07-23T04:12:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "b2a80f072fb1bcee2f22643ad804b229c785f807c1685a91b15ddedca210a9ff",
        "field_label": "Reported Value",
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        "new_value": "3952287.67",
        "notice_id": "CN3929370-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/eed45d0b-cde4-4bb6-8847-f34ae32a4558",
        "old_value": "3660658.80",
        "percentage_change": "7.97",
        "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/CN3929370",
        "summary": "Reported contract value increased by $291,628.87 (+7.97%)."
      },
      {
        "absolute_change": "74210.40",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-2be9077a445e491eb3e2a7fa06737a76-bd65a3eb6a473b2c9bbf5eff362748cf",
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        "contract_id": "CN3929370",
        "detected_at": "2025-07-23T04:12:00Z",
        "direction": "increase",
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        "event_id": "ba9a65be8c6181a9070f96869f777ce720ce0a4780ebecb9728ad10323dc66e8",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "4026498.07",
        "notice_id": "CN3929370-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/a070501e-c9fe-4bc9-b7ea-04bf23618249",
        "old_value": "3952287.67",
        "percentage_change": "1.88",
        "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/CN3929370",
        "summary": "Reported contract value increased by $74,210.40 (+1.88%)."
      },
      {
        "absolute_change": "1004506.90",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-2be9077a445e491eb3e2a7fa06737a76-c508026f08143d1b8f16b1c73cb99d45",
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        "contract_id": "CN3929370",
        "detected_at": "2025-07-23T04:12:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "7f11ab13822d54fa927d6850511b3ba28b6187b6ad7b9dfc678a5a90ae633222",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "5031004.97",
        "notice_id": "CN3929370-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/ac6737c6-58b7-4ad2-b1b2-3bce8cc7c61b",
        "old_value": "4026498.07",
        "percentage_change": "24.95",
        "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/CN3929370",
        "summary": "Reported contract value increased by $1,004,506.90 (+24.95%)."
      },
      {
        "absolute_change": "1192944.50",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-2be9077a445e491eb3e2a7fa06737a76-894f391db7763dd5b651f6b0a0530347",
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        "contract_id": "CN3929370",
        "detected_at": "2025-07-23T04:12:00Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "259a4ee9138a65fdd7aa1f2855502ab81ec78ec6d8c8a91c840108c94dbcd248",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "6223949.47",
        "notice_id": "CN3929370-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/83230573-5276-4247-be10-aecdf68b6212",
        "old_value": "5031004.97",
        "percentage_change": "23.71",
        "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/CN3929370",
        "summary": "Reported contract value increased by $1,192,944.50 (+23.71%)."
      }
    ],
    "evidence_path": "evidence/CN3929370.json",
    "latest_modified_at": "2025-07-23T04:12:00Z",
    "notice_id": "CN3929370-A4",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/83230573-5276-4247-be10-aecdf68b6212",
    "original_reported_value": "3660658.80",
    "procurement_method": "Limited tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN3929370",
    "supplier_name": "OPTUS BILLING SERVICES PTY LTD",
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    "value_change_percentage": "70.02",
    "versions": [
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        "agency_name": "Department of Defence",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3929370",
        "supplier_name": "OPTUS BILLING SERVICES PTY LTD",
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3929370",
        "supplier_name": "OPTUS BILLING SERVICES PTY LTD",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3929370",
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3929370",
        "supplier_name": "OPTUS BILLING SERVICES PTY LTD",
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      {
        "agency_name": "Department of Defence",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3929370",
        "supplier_name": "OPTUS BILLING SERVICES PTY LTD",
        "title": "4600044194"
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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"
  }
}