# C287 author review

Question: Do the17K and19K endpoint families form one complete source-qualified K pattern?

Conclusion: The complete supported rows have coordinates(-12K+i,-10K+i,5K+i,7K+i), yielding widths2K,15K,17K,19K.

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:

- A comparison matrix is not a physical two-dimensional chronology.
- The4K width difference is not itself an admitted event separation here.
- Co-located LXX/SP labels remain separate source identities.

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.