Evidence tiers
Airlock grades what it can establish, and the grades are deliberately modest.
| Level | What it means |
|---|---|
| Declared | The author of the manifest said so. Airlock recorded the claim; it did not test it. |
| Corroborated | Something in the scanned source is consistent with the claim. Not contradicted — never verified. |
| Computed | Airlock derived it deterministically from what it was given. |
| Observed | Airlock watched it happen during this run. |
| Verified | Empty. Nothing in Airlock is verified in the strong sense, and this level exists to say so rather than to be filled in. |
A passing corroboration check means not contradicted. It never means verified.
What a bundle does not carry
Bundle version 1 records no per-check assurance level. This site therefore shows no per-check assurance badge, and there is no table anywhere in its source that maps a check id to a level. Inventing one would be inventing evidence.
Model review
The model-review path is implemented and tested against a fake transport; it has never been run against a live provider. Every run on this site was produced with review skipped, and the platform supplies no provider key.
Checksums
A matching checksum shows content identity now. It does not show authenticity, does not show provenance, does not establish a trusted time, and is not tamper-evidence.