Independent publication • Updated August 25, 2026News, context & verification
Interactive verification tool

Source Chain Mapper

Map how a claim moved from an original source through reposts, summaries or screenshots so you can see whether the evidence chain actually reaches a primary source.

What this doesMap how a claim moved from an original source through reposts, summaries or screenshots so you can see whether the evidence chain actually reaches a primary source.

Method and assumptions

The mapper rewards an identified primary source and makes intermediary hops visible. A shorter chain is not automatically better: one direct but unreliable source can be weaker than a well-documented secondary report. The score is therefore a workflow prompt, not a truth metric.

Use “original source” for the record that directly contains the evidence: a filing, dataset, full interview, official statement, raw video or firsthand document. Use intermediary fields for articles or posts that merely describe that source.

Limits

The “Source Chain Mapper” utility organizes evidence; it does not determine truth automatically.