NOTES

How verification
actually works.

Plain notes on how verification works, accuracy, and limits.

01
METHOD / 7 MIN READ

How a claim check should work

A useful check is a chain of questions, not a single confidence number.

02
MEASUREMENT / 6 MIN READ

What “accuracy” means on a fact-check product

Accuracy is a property of a task, a source set, and a decision threshold.

03
MEDIA / 7 MIN READ

Image checks and content provenance

Pixels can tell a story. Provenance can tell you where the story came from.

04
SYSTEMS / 6 MIN READ

Agents that watch claims, not a newsroom replacement

Monitoring is useful when it finds work for people, not when it pretends to be them.