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state,enum,yes,supported partially_supported unsupported or superseded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