| field,type,required,description |
| claim_id,string,yes,Stable identifier and version for one public claim |
| exact_public_text,string,yes,Exact sentence or number shown to the outside reader |
| claim_class,enum,yes,identity quantitative comparative capability or outcome |
| scope,string,yes,Product company team customer cohort or market covered by the claim |
| metric,string,conditional,Exact quantity for quantitative comparative or outcome claims |
| unit,string,conditional,Unit attached to the metric |
| time_window,string,conditional,Period described by the claim |
| comparator,string,conditional,Named baseline for a comparative claim |
| evidence_ref,string,conditional,Public URI data-room locator or internal record identifier |
| evidence_locator,string,conditional,Page section row commit run or timestamp |
| observed_at,date,conditional,Date or period the evidence describes |
| retrieved_at,date,conditional,Date the evidence was checked |
| method_version,string,conditional,Benchmark calculation or test method version |
| state,enum,yes,supported partially_supported unsupported or superseded |
| limitations,string,yes,Missing context population uncertainty or access limits |
| owner,string,yes,Human owner of the claim and evidence request |
| reviewed_at,date,yes,Date of the latest human review |
| supersedes,string,no,Prior claim or evidence record replaced without erasing history |
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