Citation traceability
Citation traceability is the property that every factual claim in a generated answer is paired with a verifiable pointer to the source passage that supports it, usually paper, page, and quoted span. Traceability is what separates research-grade AI assistants from generic chatbots.
A traceable citation has three parts: the source identifier (paper title or DOI), a position within the source (page number or section), and the exact quoted text. Without all three, "citation" collapses to either a bare reference (no quote to verify) or a hallucinated quote (no provenance).
Practical test: pick a sentence in the AI answer, click the citation, and confirm that the linked passage actually contains the claim. Tools that fail this test on more than ~20% of citations are unsafe for research. Atlas' rubric scores citation accuracy as one of five locked axes in our benchmark.
Citation traceability is the feature most reviewers overlook in casual tool comparisons because it requires reading the underlying papers to verify. It is also the feature that matters most in academic, legal, and medical contexts.