ETH-003
Hard constraint
layer: sentence
Evidence exists before objective claim
IF an objective material claim will be published, THEN verify a reasonable evidentiary basis existed before dissemination ELSE block the claim.
Why the rule exists
Post-hoc support does not replace the duty to substantiate an objective claim before publication.
Condition
The rule fires when this evaluates true. Paths marked below must be present in the fact base; the engine reports the rest rather than guessing them.
- ALL
- claim.type eq "objective"
- claim.material eq true
Facts this rule reads
| Path | Source |
|---|---|
claim.type |
You supply it |
claim.material |
You supply it |
Then
- verify — target
claim.prior_substantiation - block_publication — target
claim
Else
- retain — target
current_text, No triggering condition is present.
LAKA
- Smallest sufficient intervention
- Yes
- Primary axes
Sources
-
Advertising Substantiation Policy Statement — U.S. Federal Trade Commission
link
Objective claims require a reasonable evidentiary basis before dissemination.
The raw rule record
Verbatim from 18-ethics-and-claims-rules.json. Also available at /v1/rules/ETH-003.
{
"id": "ETH-003",
"name": "Evidence exists before objective claim",
"domain": "ethics",
"layer": "sentence",
"strength": "hard_constraint",
"human_logic": "IF an objective material claim will be published, THEN verify a reasonable evidentiary basis existed before dissemination ELSE block the claim.",
"when": {
"all": [
{
"path": "claim.type",
"operator": "eq",
"value": "objective"
},
{
"path": "claim.material",
"operator": "eq",
"value": true
}
]
},
"then": [
{
"action": "verify",
"target": "claim.prior_substantiation"
},
{
"action": "block_publication",
"target": "claim",
"when": "prior_substantiation_missing"
}
],
"else": [
{
"action": "retain",
"target": "current_text",
"reason": "No triggering condition is present."
}
],
"unless": [],
"because": "Post-hoc support does not replace the duty to substantiate an objective claim before publication.",
"diagnostics": [],
"examples": {},
"source_ids": [
"WEB-013"
],
"laka": {
"smallest_sufficient_intervention": true,
"primary_axes": [
"scope",
"depth",
"magnitude",
"reversibility"
]
}
}
Other ethics rules
- ETH-001 No known false statement IF a statement is known to be false, THEN correct or remove it ELSE continue to evidence review. Hard constraint
- ETH-002 Evaluate express and implied claims IF wording, visuals, omissions, sequence, or context could imply a material claim, THEN evaluate that implication as well as the literal sentence ELSE retain. Hard constraint
- ETH-004 Disclose material conditions IF price, outcome, eligibility, risk, timing, endorsement, or availability depends on a material condition, THEN disclose it clearly and near the claim ELSE retain. Hard constraint
- ETH-005 Do not fabricate authority or social proof IF a credential, citation, endorsement, review, testimonial, user count, or case is unverifiable or synthetic without disclosure, THEN remove or accurately label it ELSE retain. Hard constraint
- ETH-006 Do not exploit vulnerability IF the audience is distressed, grieving, cognitively impaired, financially desperate, a child, or otherwise vulnerable, THEN remove coercive pressure and raise clarity, evidence, consent, and review requirements ELSE retain. Hard constraint
- ETH-007 Permission is not pressure IF a reader can legally or practically decline, THEN do not describe refusal as impossible, shameful, disloyal, or dangerous without evidence ELSE state real consequences neutrally. Hard constraint
- ETH-008 Preserve uncertainty in summaries IF source material expresses uncertainty, disagreement, limitation, or conditionality, THEN preserve it in summary ELSE retain. Hard constraint
- ETH-009 Separate persuasion from information when needed IF sponsorship, sales intent, advocacy, or conflict of interest could change reader interpretation, THEN disclose it early and plainly ELSE retain. Context default