Provenance Record

Clear, well-structured News piece with Overview / What We Know / What We Don't Know / Analysis sections. Appropriate technical depth on tandem mirror architecture, gain figures, and economics. 874 words, within the News 400-1200 range.

All 4 source snapshots read from disk (gunzipped) and verified. source-0 (thefusionreport.com weekly, status 200): confirms preconceptual D-T tandem mirror, 500 MW fusion / 538 MW thermal / ~200 MWe via direct energy conversion, REBCO magnets from CFS, stackable 100-500 MW per unit, CapEx $1B-$2B, LCOE below $50/MWh, $54M raised to date, 'significant raise' needed. source-1 (thefusionreport.substack, status 200): confirms QSCI ~5.3, QENG 1.3, 538MW thermal with extra 38 MW exothermic energy from breeding tritium from lithium-6, four high-field REBCO magnets per plant (two at each end), central cell 1-3 Tesla, direct energy conversion. source-2 (PRNewswire Realta-CFS partnership, status 200): both quotes verbatim — Furlong ('By working with the world's leading HTS magnet manufacturer, we are significantly de-risking one of the most critical of these technologies') correctly attributed to Realta CEO Kieran Furlong; Mumgaard ('As the world leader in HTS magnet technology development and manufacturing, we are pleased to share our expertise with Realta') correctly attributed to Bob Mumgaard, CFS CEO and Co-founder. Confirms Devens MA, CFS develops HTS for demonstration prototypes and commercial plants, ARPA-E funded UW-Madison to build WHAM in 2020, Realta spun out 2022, WHAM first plasma at world-record 17 tesla in 2024. source-3 (Power Online, status 200): confirms Q>5 with 50-meter center cell and Q>10 or more with longer cell; Frank quote ('Our model proves there's a there there when it comes to CoSMo fusion energy systems based on the tandem mirror') verbatim and correctly attributed to Realta's computational physics team leader Dr. Sam Frank; eight organizations in DOE Milestone-Based Fusion Development Program 2023; $36M Series A led by Future Ventures with Khosla Ventures backing.

Every engineering specific (500 MW / 538 MW / ~200 MWe, CapEx $1B-$2B, LCOE <$50/MWh, QSCI 5.3, QENG 1.3, four magnets / 1-3 Tesla central cell, 38 MW lithium-6 breeding), funding figure ($54M to date, $36M Series A), and historical milestone (WHAM 2020 build, 2022 spinout, 17-tesla 2024 record, DOE 2023 program) traces to a cited source. The article correctly frames the design figures as company projections / preconceptual targets — 'preconceptual design', 'stated design goals', 'modeled targets rather than demonstrated results' — not validated results.

High-quality, accurate, well-sourced submission. All claims, quotes, and the internal cross-reference verified against source snapshots. The single finding is a non-blocking allowlist warning, which does not require a correction. APPROVE.