{
  "contract": {
    "agency_name": "Department of Defence",
    "amendment_count": 5,
    "category_code": "43190000",
    "contract_end_date": "2027-05-26",
    "contract_id": "CN3769020",
    "contract_start_date": "2021-05-26",
    "currency": "AUD",
    "current_reported_value": "3736379.94",
    "description": "Digital Voice Recording System Support",
    "events": [
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        "absolute_change": "300000.00",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-6eed33c11f78451981969587a604d82e-975f26eab3f730e0aaaa684a533b16f4",
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        "contract_id": "CN3769020",
        "detected_at": "2025-07-08T04:27:29Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "c0cc6fb691d77c3c423eeca16c63507a88ddf176713a38546304226ee3213e28",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1786009.80",
        "notice_id": "CN3769020-A1",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/0d2897ba-6f8b-4a9b-9ead-e5de8c6bad2f",
        "old_value": "1486009.80",
        "percentage_change": "20.19",
        "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/CN3769020",
        "summary": "Reported contract value increased by $300,000.00 (+20.19%)."
      },
      {
        "absolute_change": "110000.00",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-6eed33c11f78451981969587a604d82e-c83f369f287b3065b78699fe303890b6",
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        "contract_id": "CN3769020",
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        "direction": "increase",
        "duration_change_days": null,
        "event_id": "5971f7e89b6da40ee5a66fdcc817877efb5008f9f71e54857cff2bd1bf6fbe38",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "1896009.80",
        "notice_id": "CN3769020-A2",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/4ff7c3d6-23fa-4f10-ae56-6d784f3f7b9b",
        "old_value": "1786009.80",
        "percentage_change": "6.16",
        "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/CN3769020",
        "summary": "Reported contract value increased by $110,000.00 (+6.16%)."
      },
      {
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        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-6eed33c11f78451981969587a604d82e-b14391df32823b1a86544d02d8c5e459",
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        "detected_at": "2025-07-08T04:27:29Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "e009bf2cc91756a4b9419c9d4d2faad0c8d57e328c590aadbd50a76ebdb91aa0",
        "field_label": "Reported Value",
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        "notice_id": "CN3769020-A3",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/185297c3-4cc1-4e48-b50f-b64958b43285",
        "old_value": "1896009.80",
        "percentage_change": "31.49",
        "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/CN3769020",
        "summary": "Reported contract value increased by $597,043.79 (+31.49%)."
      },
      {
        "absolute_change": null,
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
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        "contract_id": "CN3769020",
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        "direction": "changed",
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        "event_id": "afd50b20c3adc8cb28f9062cabc5401ed642b669c02a70d89f519765cd7ad3b6",
        "field_label": "Supplier Name",
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        "new_value": "TKMS SONARTECH ATLAS PTY LIMITED",
        "notice_id": "CN3769020-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/ed9724a1-8b0e-4651-b9c2-531c23978d27",
        "old_value": "SONARTECH ATLAS 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/CN3769020",
        "summary": "Supplier changed."
      },
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        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-6eed33c11f78451981969587a604d82e-8937299906b237fe87e069c9aebb38d2",
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        "contract_id": "CN3769020",
        "detected_at": "2025-07-08T04:27:29Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "b6eda367ad83bbb5fc4468ddecd03a25d2c7973fd06c6b392de683f608fc6428",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "3128546.26",
        "notice_id": "CN3769020-A4",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/ed9724a1-8b0e-4651-b9c2-531c23978d27",
        "old_value": "2493053.59",
        "percentage_change": "25.49",
        "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/CN3769020",
        "summary": "Reported contract value increased by $635,492.67 (+25.49%)."
      },
      {
        "absolute_change": "607833.68",
        "adaptation_notice": "Adapted and normalised by ContractDelta AU from AusTender Contract Notice data.",
        "after_release_id": "prod-6eed33c11f78451981969587a604d82e-bde85346de393a9b9b3e8686f4723529",
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        "contract_id": "CN3769020",
        "detected_at": "2025-07-08T04:27:29Z",
        "direction": "increase",
        "duration_change_days": null,
        "event_id": "696191e4ea2f58a6a86d5671b3550a3bca851406810ab90151b56224bf283b7d",
        "field_label": "Reported Value",
        "field_name": "reported_value",
        "new_value": "3736379.94",
        "notice_id": "CN3769020-A5",
        "official_record_url": "https://www.tenders.gov.au/Cn/Show/3c48419d-6eb0-461c-8009-714ccd493ada",
        "old_value": "3128546.26",
        "percentage_change": "19.43",
        "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/CN3769020",
        "summary": "Reported contract value increased by $607,833.68 (+19.43%)."
      }
    ],
    "evidence_path": "evidence/CN3769020.json",
    "latest_modified_at": "2025-07-08T04:27:29Z",
    "notice_id": "CN3769020-A5",
    "official_record_url": "https://www.tenders.gov.au/Cn/Show/3c48419d-6eb0-461c-8009-714ccd493ada",
    "original_reported_value": "1486009.80",
    "procurement_method": "Limited tender",
    "source_url": "https://api.tenders.gov.au/ocds/findById/CN3769020",
    "supplier_name": "TKMS SONARTECH ATLAS PTY LIMITED",
    "title": "4600011316",
    "value_change": "2250370.14",
    "value_change_percentage": "151.44",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3769020",
        "supplier_name": "SONARTECH ATLAS PTY LTD",
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      {
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      {
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3769020",
        "supplier_name": "TKMS SONARTECH ATLAS PTY LIMITED",
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      {
        "agency_name": "Department of Defence",
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        "procurement_method": "Limited tender",
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        "source_url": "https://api.tenders.gov.au/ocds/findById/CN3769020",
        "supplier_name": "TKMS SONARTECH ATLAS PTY LIMITED",
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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"
  }
}