{
  "study": "browser-fingerprint-stability",
  "study_version": "1.0",
  "title": "EchoScan Browser Fingerprint Stability Study",
  "language": "zh-CN",
  "report_url": "https://echoscan.org/pages/browser-fingerprint-stability-zh-CN.html",
  "research_index_url": "https://echoscan.org/pages/research-zh-CN.html",
  "published_at": "2026-08-10",
  "measurement_count": 94,
  "device_environments": 3,
  "device_browser_combinations": 8,
  "conditions": [
    "same_session",
    "browser_restart",
    "private_browsing",
    "site_data_clearing",
    "network_change"
  ],
  "window_context_conditions": [
    "normal_baseline",
    "normal_restart",
    "private_session_1",
    "normal_return_1",
    "private_session_2",
    "normal_return_2"
  ],
  "session_relation_to_normal_values": [
    "same_as_normal",
    "different_from_normal",
    "varied",
    "not_applicable"
  ],
  "findings": [
    {
      "id": "persistent_identity_continuity",
      "statement": "设备连续性身份在本次受测环境中的浏览器重启、站点数据清理、网络变化和隐私浏览条件下总体保持稳定。",
      "scope": "tested environments"
    },
    {
      "id": "session_context_sensitivity",
      "statement": "Firefox、Safari、Windows Laptop Chrome 和 Brave 的测量观察到会话上下文身份随浏览器环境发生变化。",
      "scope": "tested environments"
    },
    {
      "id": "brave_private_context",
      "statement": "Brave 的普通窗口上下文在两个独立 Private 会话之间均可恢复，两个 Private 会话分别形成稳定且不同的上下文状态。",
      "scope": "tested Brave environment"
    },
    {
      "id": "network_status_independent",
      "statement": "设备连续性、浏览器会话上下文和 Network Status 在本次测量中呈现为三个独立的信息维度。",
      "scope": "tested environments"
    }
  ],
  "limitations": [
    "本研究覆盖 3 个真实设备环境和 8 个 Device / Browser 组合，结论限于实际受测环境。",
    "本研究评估身份结果一致性，不计算总体识别准确率、误报率、漏报率或 Network Status 准确率。"
  ],
  "data": {
    "csv": "https://echoscan.org/research/browser-fingerprint-stability/results-summary.csv",
    "csv_sha256": "8984f3370d6c9be68598e36f6701e0bf55132b205a1b53cb3fca58f1192fd125"
  }
}