Round 2 verification audit for C071

Model: gpt-5

Claim: State readout records typically 62 photons per bright ion in 250 us on a PMT that cannot discriminate the two ions.

Source alignment: source/supp_content.tex:137-137 (Supp. Mat. S5)

Prior official verdict: not_verified with failure_reason data_unavailable.

Executable evidence: run.py. Sandbox rerun logs: run.log.

Independent audit: I checked the paper inventory and source context. This claim depends on measured/raw experimental data or device-specific calibration values, and inventory.json records no paper-provided dataset/code artifact. The correct action is not to synthesize data; the data_unavailable verdict is preserved.

Decision: Round 2 verdict is not_verified with failure_reason data_unavailable and limitations ['data_unavailable']. Notes: Paper: typically 62 photons per bright ion in 250us on a PMT. This is a direct measurement depending on collection efficiency/NA/detuning/saturation; inventory.json records no dataset or raw histogram. Cannot reproduce. Sanity check only: implied rate 248 kcounts/s per bright ion, plausible for trapped-ion fluorescence. No raw data -> not_verified, data_unavailable.