{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 5,
    "category_code": "81110000",
    "contract_end_date": "2026-10-15",
    "contract_id": "CN3840723",
    "contract_start_date": "2021-10-16",
    "currency": "AUD",
    "current_reported_value": "1235242339.56",
    "description": "Terrestrial Communication Services",
    "events": [
      {
        "absolute_change": "1700599.99",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-4619beccb0804b6797f456488db82d6d-c2a883249a623f1783ca7a61e8d42500",
        "after_source_hash": "e1839fac449bf36a7f440b0025dae693648fe56a104a8f9490a24e15e423d218",
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        "contract_id": "CN3840723",
        "detected_at": "2025-09-03T03:47:57Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "fe130d1d5759141d13e7c9c02adb6fd9cb2f2c666ea55551b92a1cca9a10761d",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1204840432.56",
        "notice_id": "CN3840723-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/4d60623c-7e18-4b3f-a024-335339e63c47",
        "old_value": "1203139832.57",
        "percentage_change": "0.14",
        "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/CN3840723",
        "summary": "Reported contract value increased by $1,700,599.99 (+0.14%)."
      },
      {
        "absolute_change": "5720000.00",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-4619beccb0804b6797f456488db82d6d-798c7cb5e6d03e799dc96fd9c8819055",
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        "before_source_hash": "e1839fac449bf36a7f440b0025dae693648fe56a104a8f9490a24e15e423d218",
        "contract_id": "CN3840723",
        "detected_at": "2025-09-03T03:47:57Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "b750ea96ae5e75ac699a64a7406fa72f5bfaf4dda33fd67ecef97d00b1e944e0",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1210560432.56",
        "notice_id": "CN3840723-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/65e67f66-1fc6-45cc-bf0b-31f6efc20e7d",
        "old_value": "1204840432.56",
        "percentage_change": "0.47",
        "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/CN3840723",
        "summary": "Reported contract value increased by $5,720,000.00 (+0.47%)."
      },
      {
        "absolute_change": "7923386.45",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-4619beccb0804b6797f456488db82d6d-80d8b431599530e7a36d65143b3e82eb",
        "after_source_hash": "37d15ec8f18b10af9daebcbfbabdc29274c25791e7dcdd468d56c8d86a8721c6",
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        "before_source_hash": "9c474170961f9efe72bd1f9f9c4ef9df90ff10e02d7da030231c4a6d327499e1",
        "contract_id": "CN3840723",
        "detected_at": "2025-09-03T03:47:57Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "8e8d760cdb4e8bcf21ead647ecf74a8153694ea2fdd9de99c6a0c6dd169ba965",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1218483819.01",
        "notice_id": "CN3840723-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/78ccc700-29e6-44c9-af9d-0b64dfd0d04d",
        "old_value": "1210560432.56",
        "percentage_change": "0.65",
        "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/CN3840723",
        "summary": "Reported contract value increased by $7,923,386.45 (+0.65%)."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-4619beccb0804b6797f456488db82d6d-a642f2b140ab333ab72efde087dd62af",
        "after_source_hash": "77258f1f994d8f74ec85cb12affaa7b35bd3e3828685eb22e1f0780a1f3a2238",
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        "before_source_hash": "37d15ec8f18b10af9daebcbfbabdc29274c25791e7dcdd468d56c8d86a8721c6",
        "contract_id": "CN3840723",
        "detected_at": "2025-09-03T03:47:57Z",
        "direction": "changed",
        "duration_change_days": null,
        "event_id": "c9859dd1ceb7379b839c3134b4e9128d0dae8ce439d4a460af6f469ffa108cbe",
        "field_label": "Supplier Name",
        "field_name": "supplier_name",
        "new_value": "TELSTRA LIMITED",
        "notice_id": "CN3840723-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b24fdc35-c994-412a-83a7-83c7e3285ddf",
        "old_value": "TELSTRA SECURE BILLING",
        "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/CN3840723",
        "summary": "Supplier changed."
      },
      {
        "absolute_change": "16758520.55",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-4619beccb0804b6797f456488db82d6d-a642f2b140ab333ab72efde087dd62af",
        "after_source_hash": "77258f1f994d8f74ec85cb12affaa7b35bd3e3828685eb22e1f0780a1f3a2238",
        "before_release_id": "prod-4619beccb0804b6797f456488db82d6d-80d8b431599530e7a36d65143b3e82eb",
        "before_source_hash": "37d15ec8f18b10af9daebcbfbabdc29274c25791e7dcdd468d56c8d86a8721c6",
        "contract_id": "CN3840723",
        "detected_at": "2025-09-03T03:47:57Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "d91d8b7c277f1f657edb6a7431a3ce259b43d8bd76dbef9c812e4986ed7c5c8e",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1235242339.56",
        "notice_id": "CN3840723-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b24fdc35-c994-412a-83a7-83c7e3285ddf",
        "old_value": "1218483819.01",
        "percentage_change": "1.38",
        "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/CN3840723",
        "summary": "Reported contract value increased by $16,758,520.55 (+1.38%)."
      }
    ],
    "evidence_path": "evidence/CN3840723.json",
    "latest_modified_at": "2025-09-03T03:47:57Z",
    "notice_id": "CN3840723-A5",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/b24fdc35-c994-412a-83a7-83c7e3285ddf",
    "original_reported_value": "1203139832.57",
    "procurement_method": "Open tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
    "supplier_name": "TELSTRA LIMITED",
    "title": "4600048030",
    "value_change": "32102506.99",
    "value_change_percentage": "2.67",
    "versions": [
      {
        "agency_name": "Department of Defence",
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        "procurement_method": "Open tender",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
        "supplier_name": "TELSTRA SECURE BILLING",
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
        "supplier_name": "TELSTRA SECURE BILLING",
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      {
        "agency_name": "Department of Defence",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
        "supplier_name": "TELSTRA SECURE BILLING",
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
        "supplier_name": "TELSTRA SECURE BILLING",
        "title": "4600048030"
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      {
        "agency_name": "Department of Defence",
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        "contract_start_date": "2021-10-16",
        "currency": "AUD",
        "description": "Terrestrial Communication Services",
        "notice_id": "CN3840723-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/78ccc700-29e6-44c9-af9d-0b64dfd0d04d",
        "procurement_method": "Open tender",
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        "source_release_id": "prod-4619beccb0804b6797f456488db82d6d-80d8b431599530e7a36d65143b3e82eb",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
        "supplier_name": "TELSTRA SECURE BILLING",
        "title": "4600048030"
      },
      {
        "agency_name": "Department of Defence",
        "category_code": "81110000",
        "contract_end_date": "2026-10-15",
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        "contract_start_date": "2021-10-16",
        "currency": "AUD",
        "description": "Terrestrial Communication Services",
        "notice_id": "CN3840723-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/b24fdc35-c994-412a-83a7-83c7e3285ddf",
        "procurement_method": "Open tender",
        "reported_value": "1235242339.56",
        "source_hash": "77258f1f994d8f74ec85cb12affaa7b35bd3e3828685eb22e1f0780a1f3a2238",
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        "source_release_id": "prod-4619beccb0804b6797f456488db82d6d-a642f2b140ab333ab72efde087dd62af",
        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3840723",
        "supplier_name": "TELSTRA LIMITED",
        "title": "4600048030"
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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"
  }
}