YouTube

On a video page, DeepVerify reads the captions, extracts claims along with the timestamp where each was said, and checks them. Press Start Verifying in the side panel, or turn on auto-verify to have it start on its own. Long videos are handled. Transcripts are split into chunks before claim detection, so claims near the end of a multi-hour video are found the same as those at the start. Claims also appear one at a time as each chunk comes back, rather than all at once when the whole transcript is done.

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Timestamps

Every claim is tied to a moment in the video.

• Clicking a claim seeks the player to that point
• The claim currently being spoken is highlighted in the list

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Playback alerts

When the video reaches a claim judged FALSE, playback pauses and a warning appears over the player. View Claims opens the side panel focused on that claim. This only happens on videos scoring below 50 on the Trust Score — the same boundary that separates Mixed Reliability from Low Reliability. So the videos that interrupt you are the ones already labeled unreliable, and the alerts do not contradict the tier shown on the card.

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The in-page card

A fact-check card can appear below the video itself, showing the Trust Score without opening the side panel. It is on by default and can be turned off in Settings.

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Pages without a video

YouTube’s home feed, search results, and channel pages have no video to check, so DeepVerify treats them as ordinary web pages — you can still check the text on them. See Web pages.

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Re-checking

Returning to a video you already checked shows the earlier result rather than running again. Use Check again for a fresh verdict; the previous one is kept so you can see whether anything changed. See History.

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