Why it matters
An evidence chain connects user-visible claims to citations to source passages to document versions. It makes answers auditable instead of persuasive.
How it works
Persist retrieval records, selected chunks, generation output, and citation mappings as an immutable chain per answer or session.
Example
Nintendo evidence chain for a denied refund shows the model cited Refund Policy section 3.2 day-limit rule, linked to June version, with retrieval scores logged.
Common mistakes
- 1Citations added cosmetically after generation without retrieval proof
- 2Chains stored too briefly for compliance retention needs
- 3Missing link when answers combine multiple sources
Your source changed. Your AI should know.
Track source freshness, detect changes, and review impact before answers drift.
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