2026-10-11 17:10 UTC

Haus Research claims roughly one-third of audited Perplexity citations attached to numeric claims do not contain the cited number, implying AI-search and RAG systems need claim-level citation verification.

state: expiredheat: lowuncertainty: highconvergesscott: mediumcitation-verification ai-search rag-reliabilityHaus ResearchPerplexity

What is this?

Haus Research reportedly audited Perplexity’s citations attached to numeric claims and found that roughly one-third of the cited sources did not contain the number they were presented as supporting. The finding concerns citation faithfulness—not merely whether a citation exists or is topically relevant—and points to a need for claim-level verification in AI-search and RAG pipelines. The supplied results corroborate the broader citation-support problem, but they do not provide Haus Research’s original methodology, sample size, audit period, or detailed results, so the precise rate cannot be independently assessed here.

Why it matters to Scott

Haus Research’s reported audit supplies external empirical support for Scott’s existing claim that citations must be verified against exact claim-level evidence, not accepted merely because they exist or are topically relevant. This creates a dated-receipts publishing opportunity around Evidence Packages, Provenance-Coupled Work, and verbatim evidence anchoring, but the missing methodology and sample details limit how strongly the one-third figure can be used.
ip:concept.evidence-packageip:framework.provenance-coupled-workip:source.witness-not-oracle-ebookdev:concept.verbatim-source-evidence-anchoringdev:concept.proof-of-read-citation-gateradar:concept.claim-verificationradar:veruscite-citation-checking
queries asked of Scott's wikis
  • claim-level citation verification in RAG
  • citation faithfulness versus source relevance
  • numeric claim validation in AI search
  • RAG evaluation beyond recall and precision
  • automated entailment checks for cited claims
  • provenance and evidence tracing in knowledge systems

Measured heat

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How the heat travelled

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Evidence (2) — ⭐ canonical anchor

sourceobjectauthorscorecomments
🟧 hnA third of Perplexity's citations don't contain the number they're cited forjakobgreenfeld12447
🟧 echo.blog ⭐Reports that a third of Perplexity citations do not contain the number they are cited to support.Haus Research——

Interpretation history

Decision trace