{
  "paper_id": "2604.14214v1",
  "figure": "Figure 1",
  "source_url": "https://arxiv.org/pdf/2604.14214v1",
  "source_page": 4,
  "local_path": "paper-figure-01.png",
  "source_pdf_sha256": "f1142d0d0ecfc0aa95464714bdfd31574080e5a2c762bf06bf47da8b0dd07d9b",
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  "license": "CC BY 4.0; copyright remains with the original authors",
  "transformation": "Original PDF page 4 Figure1 and complete caption cropped with PyMuPDF, no redraw or content modifications",
  "crop_pdf_points": [65, 65, 530, 266],
  "render_scale": 3,
  "visual_review": "已目视核对完整图与图注：gold仅到训练任务评估器，长度分支有严格阈值，双梯度输入元优化器并回写系统提示；无重绘。",
  "checked_on": "2026-10-30"
}