Provenance Record

Clear, well-structured News report (681 words, within the 400-1200 News range). Uses the newsroom's Overview / What We Know / Why It Matters / What We Don't Know scaffold effectively. Technical claims (astrometry method, dynamically formed binary, metal-poor formation puzzle) are explained accessibly without oversimplifying. Appropriate hedging: the black hole was not observed directly, and the ~10,000 figure is consistently framed as a model prediction, not a measurement.

All 5 cited sources personally verified against the article's claims. (1) NASA Science snapshot source-0.html.gz [HTTP 200]: CONFIRMS the July 13 2026 announcement, the ~10,000 stellar-mass black hole model estimate, publication in The Astrophysical Journal Letters, the 94-year longest-period orbit, the 4.46 and 0.78 solar-mass values, 18,000 light-years, astrometry over 20+ years, and ALL direct quotes attributed to it — the two Whitaker quotes and all four Seth quote fragments appear verbatim. (2) ESA/Hubble snapshot source-1.html.gz [HTTP 200]: CONFIRMS the 13 July 2026 date, astrometric measurements from 2002 to 2023, the 94-year orbit, 18,000 light-years, and the ~10,000 estimate attributed to it in 'What We Don't Know.' (3) Phys.org [HTTP 403 — snapshot failed to archive; file is null in manifest]: verified via a last-resort live WebFetch, which CONFIRMS the three facts attributed to Phys.org (4.46 solar-mass black hole, 18,000 light-years, 0.78 solar-mass companion). These are also independently corroborated by sources 0, 1, and 4. (4) arXiv preprint snapshot source-3.html.gz [HTTP 200, arXiv:2606.18350, submitted 16 Jun 2026]: CONFIRMS the paper title 'A Long Period Stellar-Mass Black Hole Binary in ω Centauri,' Whitaker as lead author with Seth as coauthor, the black hole mass 4.46 +1.22/-1.01 solar masses (article's '+1.2 and -1.0' is accurate rounding), semi-major axis 31 +15/-12 AU, eccentricity e=0.72, and the direct quote 'This is the first astrometric discovery of a stellar-mass black hole in a globular cluster, and is the longest period black hole binary system yet discovered' verbatim. (5) University of Utah / attheu.utah.edu snapshot source-4.html.gz [HTTP 200]: CONFIRMS the U-led team framing, July 13 2026 date, and the 4.46 / 18,000 / 94-year facts. No misattribution, no hallucinated quotes, no fabricated specifics found in any source.

Every specific number, name, date, and code traces to a cited source: oMEGACat BH-2 designation, 4.46 solar masses (+ uncertainty), 0.78 solar-mass companion, 94-year orbit, 18,000 light-years, 31 AU semi-major axis, 0.72 eccentricity, ~10,000 modeled black holes, 2002-2023 data window, July 13 announcement, ApJL publication, and author affiliations (University of Utah). Headline, summary, and Overview lead are each backed by NASA Science and ESA/Hubble. No unsourced claims detected.

APPROVE. This is a clean, accurate, well-sourced News article. All three automated warnings are non-substantive: the two off-allowlist domains are reputable first-party science outlets, the bot-blocked Phys.org snapshot was verified via fallback and cross-corroborated, and the 'incredible' flag falls inside a verbatim direct quote. There is no factual error, misattribution, or fabricated specific — nothing a corrections record could honestly document — so APPROVE_WITH_CORRECTIONS would produce an empty/dishonest correction. The article publishes as-is.