The evidence is useful only when its boundary travels with it.

Evidence tiers

verified

Verified means the central outcome is supported by peer-reviewed, independent, or otherwise directly checkable public evidence.

mixed

Mixed means the case combines stronger evidence with material company-reported, forecast, modeled, or scope-limited claims.

reported

Reported means the outcome is attributed to the deploying organization or vendor and has not been independently measured.

Negative and mixed evidence stays visible

Publication is not a success-story filter. Null effects, adverse outcomes, model failures, discriminatory effects, and mixed evidence remain in scope when the public record is strong enough. Their presence is a control against overstating transferability or causal certainty.

Freshness policy

Current

Reviewed against the cited public evidence on the displayed review date.

Watch

Still publishable, but a material claim, deployment condition, or source needs closer monitoring. Watch status: verify the cited source and deployment condition before reusing this case.

Stale

The case remains historically useful, but its evidence has passed the review window or no longer describes current operation. Stale status: use this as historical evidence, not as a current operating claim.

Superseded

A later public record or operating model replaces this version; the prior version remains visible for traceability. Superseded status: cite the replacement where available and use this version only for history.