The two 2026-07 LLM-code-diversity preprints (arXiv:2607.02808 and 2607.03174) share a co-author and are not independent of each other

single-source-capsource-corroborationsoftware-reliabilityn-version-programminggenerative-process-diversity

João R. Campos is a co-author of both arXiv:2607.02808 (Nogueira, Pattabiraman, Vieira & Campos) and arXiv:2607.03174 (Almeida, Gashi, Stankovic & Campos). Per the single-source-concentration-cap logic in sources.md — independence requires a different author group and a different venue — these two preprints do not corroborate each other: a shared co-author is "the same source wearing different clothes" in the cap's own terms, even though the two papers have otherwise distinct rosters and somewhat different secondary venues (cs.SE vs. cs.SE/cs.AI).

This matters for bookkeeping, not for either paper's relationship to Tieman & Markou — both preprints are independent of Tieman & Markou (different full author rosters, different institutions, different research tradition), which the companion note covers. What this note flags specifically is that a future session should not treat arXiv:2607.03174 as independent confirmation of a number reported in arXiv:2607.02808 (or vice versa) — including the reliability-gain figures reported in 2607.02808 — without a third, genuinely independent source.