Observed arrival · 2026-09-18
SourceTrace, a claim-checking lens for printed pages
Photograph a page from a book, magazine, or newspaper and trace its factual claims to supporting, contradicting, mixed, or inconclusive sources.
- For
- Readers checking claims in books, magazines, and newspapers
- Worth noticing
- Its sample analysis surfaces a source that contradicts the lower population estimate in Sapiens.
Field notes
The workflow begins with a photograph or shared text, then separates claims from the surrounding page and checks whether citations are present. Its displayed verdicts include mixed support and inconclusive, rather than forcing every result into true or false. In the Sapiens example, three sources are listed for one population claim, with one source supporting the range and another reporting approximately ten million humans at the same date. The page also shows relevance ratings and source quotations.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue