{
  "id": "C06-N05",
  "title": "网络对时完成后还会撕裂吗：怎样分层记录同步证据",
  "schema_version": "1.0",
  "evidence_kind": "合成输入与协议；非现场测试结果",
  "tool_versions": {
    "generator": "Python 3.12.4",
    "ffmpeg": "8.0.1（仅实际媒体生成与解码）"
  },
  "required_delivery": "系统时钟、播放帧号和显示刷新三层证据对照图",
  "input": {
    "layers": [
      {
        "name": "clock",
        "offset_ms": [
          0.2,
          0.3
        ]
      },
      {
        "name": "content",
        "frame": [
          100,
          100
        ]
      },
      {
        "name": "render",
        "observation": null
      },
      {
        "name": "scanout",
        "hardware_lock": null
      }
    ]
  },
  "expected": {
    "verified_layers": [
      "合成时钟",
      "合成内容"
    ],
    "hardware_lock_verified": false
  },
  "measurement": null,
  "unmeasured": [
    "实体播放硬件",
    "显示刷新相位",
    "现场拍摄",
    "实际Windows目标机配置"
  ],
  "record_fields": [
    "host",
    "clock_source",
    "clock_offset_ms",
    "content_frame",
    "present_event",
    "refresh_hz",
    "hardware_lock_status",
    "capture_id"
  ]
}