# C280 author review

Question: Does the documented460 state exchange carry the entire598/8395/8993 triangle?

Conclusion: All six598/8395/8993 triangles persist under the documented LXX ON / MT ON+60 state comparison.

The exact results were inspected against the source register and independently expressed domain identities in the checker. The second run verifies deterministic reproduction, not independent scientific review. No new agent review is claimed.

Limits:

- Equal460 magnitudes have different source operations.
- Flood-only covariance does not supply MT Noah companions.
- Preserving local images would require a separately stated intercept adjustment.

The report and checkpoint are authored interpretations. The verifier authenticates the supplied inputs and calculations; it does not prove historical intentionality. Original dependencies and all standing controls remain unchanged.