{
 "page": "/home/kai/shared/2026-09-28/r073_blind_v7/r073_kb39v7_blind_pick.html",
 "page_key": "r073_kb39v7_pick_v1",
 "title": "r073 长镜拆段 v7 双臂盲选 · Kai 终审 (kb39 S5)",
 "scheme": "pick",
 "blind": true,
 "media": "video",
 "seed": 20260928,
 "summary_head": "r073v7盲选",
 "overall": true,
 "url_intranet": "http://100.124.72.88:8082/2026-09-28/r073_blind_v7/r073_kb39v7_blind_pick.html",
 "url_public": "https://kais-engine.taile7d1c8.ts.net/2026-09-28/r073_blind_v7/r073_kb39v7_blind_pick.html",
 "cases": [
  {
   "id": "case_r073",
   "title": "r073 (186.6-206.3) 两种拍法，哪个更接近 GT？",
   "hint": "先播 GT 参照窗（有声，1080p 原片）建立基准，再盲选两臂。判读轴：①对峙交手动作链完整度 ②甩镜段落连续性 ③独角仙推近+惊恐表情 ④尾段细节健康度。已知签名提示：两臂中之一的拼点在 8.4s 附近（静止定格处），若见该处微顿可记录进意见。",
   "arms": [
    {
     "slot": "①",
     "file": "bta_case_r073_1.mp4",
     "source": "/home/kai/shared/2026-09-28/r073_blind_v7/media/bt_r073_甲.mp4",
     "true_name": "拍法甲",
     "short": "甲",
     "control": false,
     "src_md5": "4d0d9046c82b13ecd55db9da8e9af64b",
     "embedded_md5": "4d0d9046c82b13ecd55db9da8e9af64b"
    },
    {
     "slot": "②",
     "file": "bta_case_r073_2.mp4",
     "source": "/home/kai/shared/2026-09-28/r073_blind_v7/media/bt_r073_乙.mp4",
     "true_name": "拍法乙",
     "short": "乙",
     "control": false,
     "src_md5": "ec4eb1098f18e1539c47407881491ec2",
     "embedded_md5": "ec4eb1098f18e1539c47407881491ec2"
    }
   ],
   "control": false,
   "ref": {
    "file": "ref_case_r073.jpg",
    "caption": "GT 真值五帧条（左→右）：窗首对峙 / 静止拼点前 / 静止拼点后 / 甩镜 / 窗尾独角仙近景。判读真值以此为准（0918 令）",
    "src_md5": "e4e055f74ca1fc71b80f5ee8dc6dd907",
    "embedded_md5": "e4e055f74ca1fc71b80f5ee8dc6dd907"
   }
  }
 ],
 "reveal": {
  "case_r073": [
   [
    "①",
    "拍法甲"
   ],
   [
    "②",
    "拍法乙"
   ]
  ]
 },
 "all_keys": [
  "case_r073"
 ],
 "ctl_keys": [],
 "strategy": {
  "target_type": "video_clip",
  "label": "视频片段",
  "layer": "composite",
  "ctl_active": false,
  "warnings": [
   "盲选组数 1 < 3, 未加对照锚题(感知标定校验缺位)"
  ]
 },
 "forbidden_words": [],
 "built_at": "2026-09-28T14:59:08"
}