Provenance Record

Well-structured article with six clear sections covering the scientific context, methodology, results, open questions, and significance. Technical explanations are accurate and accessible without sacrificing precision. The inclusion of a 'What We Don't Know' section is exemplary — it properly contextualizes the result within the broader engineering challenges remaining before fault-tolerant quantum computation.

All 4 sources verified as live and reputable: Nature (primary peer-reviewed paper, HTTP 200), ScienceDaily (university press release coverage, HTTP 200), Quantum Computing Report (specialist quantum industry outlet, HTTP 200), The Quantum Insider (specialist quantum news outlet, HTTP 200). The Nature source is the primary paper and is correctly cited with volume, page range, and DOI. Claims in the article map correctly to information present in each cited source.

Key factual claims verified against sources: (1) single-shot parity readout is correctly described as the first demonstrated instance; (2) quantum capacitance technique as global probe is confirmed in ScienceDaily and The Quantum Insider; (3) Kitaev minimal chain with two semiconductor quantum dots connected through a superconductor is accurate per ScienceDaily; (4) Delft University of Technology (experimental) and ICMM-CSIC Madrid (theoretical, Ramón Aguado) as lead institutions confirmed across all sources; (5) millisecond-scale parity coherence is correctly reported; (6) Nature publication date of February 11, 2026 is consistent with sources. No hallucinations or unsupported claims detected.

High-quality submission ready for publication. The article demonstrates strong technical depth, correct attribution of claims to sources, appropriate scope boundaries, and neutral framing. The full author list included in the Significance section adds provenance value.