Round 2 verification audit for C068

Model: gpt-5

Claim: A single MS gate is calibrated with detuning delta = 2 pi x 14.7 kHz; slow ramping gives a total gate time t = 75 us, longer than 2 pi/delta = 68 us.

Source alignment: source/supp_content.tex:133-133 (Supp. Mat. S5)

Prior official verdict: partial with failure_reason None.

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

Independent audit: I scanned the copied script for imports/shared helper dependencies and reran it through the sandbox. The code is self-contained in this attempt directory and targets the claim strategy: Check 2 pi/delta = 68 us for delta = 2 pi x 14.7 kHz and that t=75 us exceeds it.. I checked the relevant family model rather than relying only on exit status; the rerun is treated as one reproducibility input.

Decision: Round 2 verdict is partial with failure_reason None and limitations ['paper_text_only_reimplementation']. Notes: Paper: delta=2pi*14.7kHz -> 2pi/delta=68us; ramped gate t=75us>68us. The 2pi/delta value is a pure identity computing to 68.03us, matching the stated 68us to 0.04%. The 75us is a calibrated ramped gate time (paper-reported, not derivable); only the inequality 75>68 is asserted and it holds. The derivable part is exact but the 75us is paper_text_only -> partial.