C022 - Fig. 2b: after 16 cycles, initial states with fidelities >~ 0.75 converge onto the same s...
Verdict: data_unavailable (data_unavailable)
Location: Fig. 2b
Type / expected artifact: plot / figure (protocol_performance.pdf)
Claim: Fig. 2b: after 16 cycles, initial states with fidelities >~ 0.75 converge onto the same steady-state singlet fidelity.
Models: extraction claude-opus-4-8; verification gpt-5; verification_chain claude-opus-4-8 -> gpt-5; verdict_chain data_unavailable -> data_unavailable.
Limitations: data_unavailable.
Source location(s): source/main.tex:127-132 (Fig. 2b).
Conclusion
Fig 2b is the MEASURED before/after singlet-fidelity mapping after 16 cycles. No raw experimental data or data/code link exists (inventory.json), so the convergence-onto-common-fidelity claim (inputs >~0.75) cannot be reproduced. figure.png is an illustrative simulation only. Claim concerns measured data -> data_unavailable.
Verification details
Executable rerun: run.py exited 0 in 0.741s; log verification/C022/attempts/R002/run.log.
Output excerpt:
simulated lambda_max=0.8770 (context only)
NOTE: Fig 2b shows MEASURED before/after fidelities; raw data unavailable.
wrote figure.png (illustrative simulation, NOT the paper's measured data)
Plot evidence:
Visual comparison notes: - Fig 2b plots the MEASURED before/after singlet fidelity mapping after 16 cycles. No raw experimental data and no data/code link exist for this work (inventory.json), so the measured before/after points cannot be reproduced and the convergence-onto-common-fidelity claim (for inputs >~0.75) cannot be verified. - The reproduced figure.png contains only an ILLUSTRATIVE simulated before/after mapping for visual context; it is NOT the paper's measured data. - No reproduction of the measured data was possible -> data unavailable. - Round-2 verifier reran the self-contained script where present and audited the modeled quantity; no new raw paper data was available.
