FOLLOW THE CLAIM沿着主张，找到来源
The narration is
only half the picture.说出来的，
只是画面的一部分。
A chart axis, slide or formula may carry a claim the speaker never says aloud. FactLens brings audio and visual evidence into the same review instead of treating a transcript as the whole video.一条坐标轴、一张幻灯片或一个公式，可能包含旁白没有说出的主张。FactLens 把声音和画面放在一起检查，让核查覆盖视频的不同信息层。
- 01:00
Listen and read听到，也读到
Use subtitles or transcription for the audio, then sample key frames to extract on-screen statements.从字幕或语音转录获得带时间的信息，再从关键帧提取画面中的说法。
TRANSCRIPT / FRAME - 02:00
Separate the claims拆成可核查的主张
Turn a flowing explanation into discrete factual statements that can be checked independently.把连续的讲述拆成具体事实陈述，让每一条都能单独核查。
CLAIM RECORD - 03:00
Show the trail展示判断的来路
An HTML Evidence Casebook groups claims, available sources and timestamps, with supported, refuted or uncertain labels.HTML 证据报告汇总主张、可用来源和时间戳，并标注“支持”“反驳”或“不确定”。
EVIDENCE CASEBOOK
