# C272 final independent review

Reviewed the completed C272 report, checkpoint, and exact verifier against the independent72-image calculation. No substantive mathematical or provenance error found.

- The N02 triples and N04+2 rule correctly specify all72 instances. The10 hits,8 distinct target records,62 generated instances, and70 distinct coordinates agree with the independent calculation.
- Both repeated MT Noah centers and the two generated outer-row midpoints retain their exact C268 identities and statuses.
- The signed gap G=104(rho−6) and inner-row overlap lengths are correct; its sign convention is explicit.
- Source absence is confined to the held48-record reflected target register. Negative images are not matched by absolute value or by switching to the original BC side.
- The report explicitly acknowledges that the charts were calibrated at rho6 and distinguishes endpoint joining from the separate finite source-match test.
- Seasonal input components retain their phase-to-target-center role change; target pair displays are not treated as raw scaled seasons.
- A separate verifier execution passed326 assertions. All six generated evidence outputs compare byte-identically with the completed packet.

No C273 work, broader calculation, root-file edit, or upload was performed by this review.