Reason Codes
Stable machine-readable explanations for verification outcomes.
{
"version": "2026-08-v6",
"schema_version": "1.0",
"codes": [
{
"code": "SOURCE_DIRECTLY_SUPPORTS_CLAIM",
"description": "The supplied source directly establishes the material factual claim.",
"typical_verdicts": [
"supported"
],
"recommended_action": "safe_to_use_as_cited"
},
{
"code": "SOURCE_PARTIALLY_SUPPORTS_CLAIM",
"description": "The source establishes a material part but not the complete claim.",
"typical_verdicts": [
"partially_supported"
],
"recommended_action": "revise_before_use"
},
{
"code": "SOURCE_DOES_NOT_CONTAIN_FACT",
"description": "The supplied source does not contain the claimed fact.",
"typical_verdicts": [
"unsupported"
],
"recommended_action": "revise_before_use"
},
{
"code": "SOURCE_CONTAINS_RELATED_BUT_INSUFFICIENT_FACT",
"description": "The source is related but does not establish the material claim.",
"typical_verdicts": [
"unsupported"
],
"recommended_action": "seek_additional_evidence"
},
{
"code": "AUTHORITATIVE_SOURCE_CONFLICT",
"description": "Authoritative evidence conflicts with the submitted claim.",
"typical_verdicts": [
"contradicted"
],
"recommended_action": "revise_before_use"
},
{
"code": "NUMERIC_CONTRADICTION",
"description": "A deterministic numerical comparison conflicts with the submitted claim.",
"typical_verdicts": [
"contradicted"
],
"recommended_action": "revise_before_use"
},
{
"code": "DATE_MISMATCH",
"description": "A material date differs from the claim or requested time context.",
"typical_verdicts": [
"outdated"
],
"recommended_action": "revise_before_use"
},
{
"code": "TEMPORAL_OUTDATEDNESS",
"description": "The evidence supports an earlier state but not the current requested context.",
"typical_verdicts": [
"outdated"
],
"recommended_action": "source_outdated"
},
{
"code": "SCOPE_OVERSTATEMENT",
"description": "The claim is broader than the evidence supports.",
"typical_verdicts": [
"partially_supported"
],
"recommended_action": "revise_before_use"
},
{
"code": "CAUSAL_INFERENCE_NOT_SUPPORTED",
"description": "The evidence does not establish the claimed causal relationship.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
},
{
"code": "QUANTITY_OVERSTATEMENT",
"description": "The claim states a materially larger quantity than the evidence.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
},
{
"code": "MATERIAL_QUALIFIER_MISSING",
"description": "A qualifier necessary for accuracy is omitted.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
},
{
"code": "CITATION_MISMATCH",
"description": "The citation does not match the asserted fact.",
"typical_verdicts": [
"unsupported"
],
"recommended_action": "revise_before_use"
},
{
"code": "SOURCE_INACCESSIBLE",
"description": "The supplied source could not be retrieved safely.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "seek_additional_evidence"
},
{
"code": "SOURCE_AMBIGUOUS",
"description": "The source wording is too ambiguous for the claimed interpretation.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "seek_additional_evidence"
},
{
"code": "INSUFFICIENT_EVIDENCE",
"description": "Available evidence is insufficient for a reliable determination.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "seek_additional_evidence"
},
{
"code": "COMPOUND_CLAIM",
"description": "The submission contains multiple material factual claims and must be split.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
},
{
"code": "DETERMINISTIC_CHECK_CONFLICT",
"description": "A deterministic check conflicts with a non-deterministic interpretation.",
"typical_verdicts": [
"contradicted"
],
"recommended_action": "revise_before_use"
},
{
"code": "MULTI_SOURCE_CONFLICT",
"description": "Multiple sources materially disagree.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
},
{
"code": "MODEL_DISAGREEMENT_UNRESOLVED",
"description": "Structured verifier disagreement could not be resolved from evidence.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
},
{
"code": "VERIFICATION_BUDGET_EXHAUSTED",
"description": "The authorized verification budget ended before required assurance was achieved.",
"typical_verdicts": [
"unverifiable"
],
"recommended_action": "revise_before_use"
}
]
}