low scienceVERIFIED
Seeds, preserved hair in tomb point to oldest signs of cannabis high 2,800 years ago, study suggests
Verified: 2 outlets in 2 countries have reported this story since Nov 5.
📍 Tokyo, Japan, JP·🕐 2d ago·2 outlets
People may have been getting high off cannabis earlier than previously thought — at least 2,800 years ago, a new study suggests. Archaeologists who led a dig at…
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✓ Verified · 2 outlets
Two or more outlets reported this story and its reliability score reached 65%, so WorldPulse marks it verified. That means more than one outlet says so, not that it is proven true.
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cross checkconfirmed90%
[Claude] Report 2 covers the same archaeological study of cannabis-use evidence in the Siberian tomb, with consistent details.
2d agoPowered by WorldPulse Verification Engine
Reliability
Reliability ScoreVery high
89%Independent outlets2
Statusverified
AI checknone yet
Community flags0
Score bands
Very high80–100%
A highly rated outlet, or several independent outletsHigh60–79%
One well-rated outlet so farModerate40–59%
A lower-rated or state-run outlet, or one report of something seriousLow20–39%
A low-rated outlet on a serious or sensitive storyVery low0–19%
Treat it as unconfirmedWhat moves the score
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Outlet ratingThe outlet’s rating in WorldPulse’s list of sources starts the score
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Independent outletsEach further outlet that reports the story closes 40% of the gap to 98%
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Report detailsA few points either way: a summary and a place add a little; state-run outlets on conflict, politics or security, and single reports marked high or critical, lose some
Not in the score: AI checks and reader flags. Verified is separate: two or more independent outlets and a score of at least 65%.
Very high · How we score this
Risk Score
low risk