diff --git a/jouleclaw/jouleclaw-rs/crates/jouleclaw-compose/src/verified.rs b/jouleclaw/jouleclaw-rs/crates/jouleclaw-compose/src/verified.rs
index 29a585f22..f8fd3072d 100644
--- a/jouleclaw/jouleclaw-rs/crates/jouleclaw-compose/src/verified.rs
+++ b/jouleclaw/jouleclaw-rs/crates/jouleclaw-compose/src/verified.rs
@@ -25,9 +25,9 @@ use std::collections::HashMap;
 use uuid::Uuid;
 
 use jouleclaw_schema::{
-    Answer, AnswerSegment, AnswerStatus, AtomicClaim, ClaimAttribution, EpistemicMode,
-    Invariant, KnowledgeAxes, OriginalQuery, Provenance, QueryPlan, RecommendedAction,
-    Refusal, RetrievedItem, VerificationAction, VerificationReport,
+    Answer, AnswerSegment, AnswerStatus, AtomicClaim, ClaimAttribution, EntailmentLabel,
+    EpistemicMode, Invariant, KnowledgeAxes, OriginalQuery, Provenance, QueryPlan,
+    RecommendedAction, Refusal, RetrievedItem, VerificationAction, VerificationReport,
 };
 
 use crate::draft::DraftSegment;
@@ -208,9 +208,51 @@ fn build_answer(inputs: &ComposeInputs<'_>) -> Answer {
                 ds.segment_id
             ));
         }
-        let cited_item = resolved
-            .into_iter()
-            .min_by_key(|it| (it.knowledge_axes.source_authority_tier, it.item_id));
+        // And the most authoritative cited item *that supports the claim*,
+        // where the verifier judged the segment's claims against what it
+        // cites. Choosing among all cited items credited the claim to a
+        // source that does not say it whenever a more authoritative item was
+        // cited beside the one that does: an answer can cite a peer-reviewed
+        // paper and a forum post, be supported only by the post, and be
+        // attributed to the paper. The verifier flags that
+        // (`citation_violations`); this keeps the attribution from repeating
+        // it. Where no cited item was judged against the claim, there is
+        // nothing to choose by, and the most authoritative cited item stands.
+        let entails = |claim_id: Uuid, item_id: Uuid| {
+            let mut judged = inputs
+                .report
+                .entailments_consulted
+                .iter()
+                .filter(|e| e.claim_id == claim_id && e.premise_item_ids == [item_id])
+                .peekable();
+            judged.peek().is_some() && judged.all(|e| matches!(e.label, EntailmentLabel::Entails))
+        };
+        let judged = resolved.iter().any(|it| {
+            seg_claims.iter().any(|c| {
+                inputs
+                    .report
+                    .entailments_consulted
+                    .iter()
+                    .any(|e| e.claim_id == c.claim_id && e.premise_item_ids == [it.item_id])
+            })
+        });
+        let by_authority = |it: &&RetrievedItem| (it.knowledge_axes.source_authority_tier, it.item_id);
+        let cited_item = if judged {
+            let supporting = resolved
+                .iter()
+                .copied()
+                .filter(|it| seg_claims.iter().any(|c| entails(c.claim_id, it.item_id)))
+                .min_by_key(by_authority);
+            if supporting.is_none() {
+                caveats.push(format!(
+                    "Segment {} cites no item that supports it, so it is attributed to none",
+                    ds.segment_id
+                ));
+            }
+            supporting
+        } else {
+            resolved.into_iter().min_by_key(by_authority)
+        };
         let attribution = ClaimAttribution {
             schema_version: "6.0".into(),
             epistemic_mode: EpistemicMode::FromRetrieval,
@@ -657,6 +699,78 @@ mod tests {
         }
     }
 
+    fn judged(claim_id: Uuid, item_id: Uuid, label: EntailmentLabel) -> EntailmentResult {
+        EntailmentResult {
+            schema_version: "2.0".into(),
+            result_id: Uuid::new_v4(),
+            claim_id,
+            premise_item_ids: vec![item_id],
+            label,
+            label_probabilities: EntailmentProbabilities { entails: 0.8, neutral: 0.1, contradicts: 0.1 },
+            running_e_value: None,
+            model_id: "fixture".into(),
+            joules_spent: 1.0,
+            metadata: Default::default(),
+        }
+    }
+
+    /// Where the verifier judged the claim against what its segment cites,
+    /// the attribution goes to the most authoritative cited item **that
+    /// supports it**. Choosing among all cited items credited the claim to a
+    /// peer-reviewed source that does not say it whenever it was cited beside
+    /// the forum post that does, which is the laundering the verifier refuses.
+    /// With no cited item supporting it, the segment is attributed to none,
+    /// and says so.
+    #[test]
+    fn attribution_goes_to_a_cited_item_that_supports_the_claim() {
+        let p = plan();
+        let mut community = item("Paris is the capital of France.");
+        community.knowledge_axes = axes(4);
+        community.source_url = Some("https://forum.example/thread/1".into());
+        let mut primary = item("A survey of unrelated results.");
+        primary.knowledge_axes = axes(1);
+        primary.source_url = Some("https://journal.example/paper".into());
+        let seg = DraftSegment {
+            segment_id: "s0".into(),
+            text: "Paris is the capital of France.".into(),
+            cited_item_ids: vec![primary.item_id, community.item_id],
+        };
+        let claim = claim_for("s0", "Paris is the capital of France.");
+        let items = [community.clone(), primary.clone()];
+        let compose = |community_says: EntailmentLabel| {
+            let mut report = report_proceed(p.plan_id);
+            report.entailments_consulted = vec![
+                judged(claim.claim_id, primary.item_id, EntailmentLabel::Neutral),
+                judged(claim.claim_id, community.item_id, community_says),
+            ];
+            let inputs = ComposeInputs {
+                plan: &p,
+                draft_segments: std::slice::from_ref(&seg),
+                claims: std::slice::from_ref(&claim),
+                items: &items,
+                report: &report,
+                joules_spent_total: 100.0,
+                latency_ms: 1500,
+            };
+            compose_verified_answer(&inputs).unwrap().as_answer().expect("Answer").clone()
+        };
+
+        let ans = compose(EntailmentLabel::Entails);
+        assert_eq!(
+            ans.segments[0].attribution.retrieval_source_uri.as_deref(),
+            Some("https://forum.example/thread/1"),
+            "the source that says it, not the more authoritative one beside it that does not"
+        );
+
+        let ans = compose(EntailmentLabel::Neutral);
+        assert_eq!(ans.segments[0].attribution.retrieval_source_uri, None, "no cited item supports it");
+        assert!(
+            ans.caveats.iter().any(|c| c.contains("cites no item that supports it")),
+            "{:?}",
+            ans.caveats
+        );
+    }
+
     /// Two cited items of **equal** authority must resolve the same way
     /// whichever order they are cited in, or the attribution of an answer
     /// depends on citation order — which is not a property of the sources.
diff --git a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/lib.rs b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/lib.rs
index ea1f61a00..af308de95 100644
--- a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/lib.rs
+++ b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/lib.rs
@@ -30,7 +30,7 @@ pub use entailer::{DebertaEntailer, EntailError, Entailer, FixtureEntailer, Pane
 pub use recovery::recovery_actions_for_violations;
 pub use report::{verify, VerifyError, VerifyInputs};
 pub use valid_answer::{
-    authority_violations, consistency_violations, coverage_violations,
+    authority_violations, citation_violations, consistency_violations, coverage_violations,
     freshness_violations, grounding_violations,
 };
 pub use verdict::determine_verdict;
diff --git a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/recovery.rs b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/recovery.rs
index 640586bdb..284380cfb 100644
--- a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/recovery.rs
+++ b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/recovery.rs
@@ -46,6 +46,7 @@ fn action_for(v: &Violation) -> RecoveryAction {
             RecommendedAction::Hedge,
             "best available source is below the required authority tier".to_string(),
         ),
+        "attribution" => attribution_action(v),
         "freshness" => (
             RecommendedAction::Hedge,
             "best available source exceeds its freshness budget".to_string(),
@@ -64,6 +65,29 @@ fn action_for(v: &Violation) -> RecoveryAction {
     }
 }
 
+/// A claim supported by sources other than the ones it cites. Laundering, a
+/// trusted source credited with what a weaker uncited one says, is dropped;
+/// a claim merely cited wrongly, or not cited, is hedged, since its support
+/// is real but not the source it names.
+fn attribution_action(v: &Violation) -> (RecommendedAction, String) {
+    match v.detail.get("finding").and_then(|x| x.as_str()) {
+        Some("laundering") => (
+            RecommendedAction::Drop,
+            "credited to a source that does not support it, while a less authoritative one it does not cite does: \
+             drop"
+                .into(),
+        ),
+        Some("uncited") => (
+            RecommendedAction::Hedge,
+            "supported, but the segment cites no source for it".into(),
+        ),
+        _ => (
+            RecommendedAction::Hedge,
+            "supported only by sources the segment does not cite".into(),
+        ),
+    }
+}
+
 fn grounding_action(v: &Violation) -> (RecommendedAction, String) {
     let stakes = v.detail.get("stakes").and_then(|x| x.as_str()).unwrap_or("");
     match (v.severity, stakes) {
@@ -137,6 +161,21 @@ mod tests {
         assert!(matches!(action.action_type, RecommendedAction::Hedge));
     }
 
+    /// A claim credited to a source that does not support it, while a less
+    /// authoritative uncited one does, is dropped; one merely cited wrongly,
+    /// or not cited, is hedged. An unrecognised kind would have been kept.
+    #[test]
+    fn attribution_drops_laundering_and_hedges_the_rest() {
+        let finding = |f: &str, severity| {
+            let mut x = v("attribution:x", severity, "attribution", "high");
+            x.detail["finding"] = json!(f);
+            action_for(&x).action_type
+        };
+        assert!(matches!(finding("laundering", ViolationSeverity::Critical), RecommendedAction::Drop));
+        assert!(matches!(finding("misattributed", ViolationSeverity::Major), RecommendedAction::Hedge));
+        assert!(matches!(finding("uncited", ViolationSeverity::Major), RecommendedAction::Hedge));
+    }
+
     #[test]
     fn coverage_keeps_for_orchestrator() {
         let action = action_for(&v("cov1", ViolationSeverity::Critical, "coverage", ""));
diff --git a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/report.rs b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/report.rs
index 480e2f80f..dd8711648 100644
--- a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/report.rs
+++ b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/report.rs
@@ -14,6 +14,8 @@
 //! entailment on the at-risk subset. For a clean answer the entire
 //! pillar runs in low joules.
 
+use std::collections::BTreeMap;
+
 use chrono::Utc;
 use uuid::Uuid;
 
@@ -25,7 +27,7 @@ use jouleclaw_schema::{
 use crate::entailer::{entail_batch, EntailError, Entailer};
 use crate::recovery::recovery_actions_for_violations;
 use crate::valid_answer::{
-    authority_violations, consistency_violations, coverage_violations,
+    authority_violations, citation_violations, consistency_violations, coverage_violations,
     freshness_violations, grounding_violations,
 };
 use crate::verdict::determine_verdict;
@@ -59,6 +61,13 @@ pub struct VerifyInputs<'a> {
     pub authority: &'a [AuthorityRecord],
     pub claims: &'a [AtomicClaim],
     pub reroute_count: u32,
+    /// What each segment of the draft cites, by segment id
+    /// ([`VerifyInputs::with_citations`]). With it, each claim is judged on
+    /// its own citations ([`citation_violations`]), and the report may say
+    /// that every claim has provenance (I1) and that the authority of what is
+    /// cited meets the query (I4). Without it neither is checked, so neither
+    /// is claimed.
+    pub citations: Option<&'a BTreeMap<String, Vec<Uuid>>>,
 }
 
 /// Run the conflict-directed verification pipeline.
@@ -99,6 +108,16 @@ pub fn verify<E: Entailer + ?Sized>(
 
     // 3. Entailment-driven checks.
     violations.extend(grounding_violations(inputs.claims, &entailments));
+    if let Some(citations) = inputs.citations {
+        violations.extend(citation_violations(
+            inputs.plan,
+            inputs.claims,
+            &entailments,
+            citations,
+            inputs.items,
+            inputs.authority,
+        ));
+    }
     violations.extend(consistency_violations(inputs.claims, &entailments));
 
     // 4. Verdict + recovery.
@@ -107,12 +126,18 @@ pub fn verify<E: Entailer + ?Sized>(
 
     // 5. Build the report.
     let mut invariants_verified: Vec<String> = vec![
-        Invariant::I1EveryClaimHasProvenance.id().into(),
-        Invariant::I4AuthorityTierRespected.id().into(),
         Invariant::I5FreshnessRespected.id().into(),
         Invariant::I6ConflictsSurfaced.id().into(),
         Invariant::I9RerouteBounded.id().into(),
     ];
+    // I1 (every claim has provenance) and I4 (the authority of *cited*
+    // sources meets the query) are about what the answer cites, so they are
+    // verified only when the citations were judged. They were listed always,
+    // while nothing here read a citation.
+    if inputs.citations.is_some() {
+        invariants_verified.insert(0, Invariant::I4AuthorityTierRespected.id().into());
+        invariants_verified.insert(0, Invariant::I1EveryClaimHasProvenance.id().into());
+    }
     // I2 only verifies when we ran entailment.
     if !entailments.is_empty() {
         invariants_verified.push(Invariant::I2AssertedImpliesEntailed.id().into());
@@ -163,6 +188,7 @@ impl<'a> VerifyInputs<'a> {
             authority,
             claims,
             reroute_count: 0,
+            citations: None,
         }
     }
 
@@ -170,6 +196,13 @@ impl<'a> VerifyInputs<'a> {
         self.reroute_count = n;
         self
     }
+
+    /// Judge each claim on what its segment cites (segment id → cited item
+    /// ids): [`citation_violations`].
+    pub fn with_citations(mut self, citations: &'a BTreeMap<String, Vec<Uuid>>) -> Self {
+        self.citations = Some(citations);
+        self
+    }
 }
 
 /// Helper: post-verdict, decide whether the orchestrator can
@@ -317,6 +350,39 @@ mod tests {
             .contains(&"I2".to_string()), "I2 should be verified when entailment ran");
     }
 
+    /// End to end: a draft segment citing a primary source that says
+    /// nothing of the claim, beside a retrieved forum post that does. Judged
+    /// on any retrieved item, as `verify` did, it proceeds and lists I1 and
+    /// I4 as verified. Judged on its own citations it is refused, and only
+    /// then are I1 and I4 claimed, since only then were they checked.
+    #[test]
+    fn a_claim_is_judged_on_its_own_citations() {
+        let mut plan = simple_plan();
+        plan.constraints.minimum_authority_tier = 2;
+        let primary = item_for("q0", "journal", 1, "A survey of unrelated results.");
+        let forum = item_for("q0", "forum", 4, "Paris is the capital of France.");
+        let items = vec![primary.clone(), forum];
+        let segs = vec![("s0".into(), "Paris is the capital of France.".into())];
+        let claims = atomize_sentences(&segs, &axes_with_tier(1)).unwrap();
+        let entailer = FixtureEntailer::new();
+        entailer.set_entails("Paris is the capital of France.", "Paris is the capital of France.");
+
+        let blind = verify(&VerifyInputs::new(&plan, &items, &[], &claims), &entailer).unwrap();
+        assert!(blind.violations.is_empty(), "{:?}", blind.violations);
+        for i in ["I1", "I4"] {
+            assert!(!blind.invariants_verified.contains(&i.to_string()), "{i} claimed unchecked");
+        }
+
+        let citations = BTreeMap::from([("s0".to_string(), vec![primary.item_id])]);
+        let judged = verify(&VerifyInputs::new(&plan, &items, &[], &claims).with_citations(&citations), &entailer).unwrap();
+        assert!(matches!(judged.verdict, VerificationAction::Refuse), "{:?}", judged.violations);
+        assert_eq!(judged.violations.len(), 1);
+        assert_eq!(judged.violations[0].detail["finding"], "laundering");
+        for i in ["I1", "I4"] {
+            assert!(judged.invariants_verified.contains(&i.to_string()), "{i} checked and not claimed");
+        }
+    }
+
     /// The same clean report as above — no violations, verdict
     /// `ProceedToComposition`, invariant I2 verified — is nonetheless refused
     /// as *grounded*, because a fixture produced its entailment labels.
diff --git a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/valid_answer.rs b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/valid_answer.rs
index b545a7cc8..2be668afa 100644
--- a/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/valid_answer.rs
+++ b/jouleclaw/jouleclaw-rs/crates/jouleclaw-diagnose/src/valid_answer.rs
@@ -16,8 +16,11 @@
 //! retrieval could fix. The verdict logic in §6.6 reads this to
 //! decide RE_ROUTE vs REFUSE.
 
+use std::collections::{BTreeMap, BTreeSet};
+
 use chrono::Utc;
 use serde_json::json;
+use uuid::Uuid;
 
 use jouleclaw_schema::{
     AtomicClaim, AuthorityRecord, EntailmentLabel, EntailmentResult, QueryPlan, RetrievedItem,
@@ -112,8 +115,148 @@ pub fn grounding_violations(
     out
 }
 
-/// **Authority** — cited sources meet the query's minimum tier
-/// requirement (spec §6.1).
+/// **Attribution** — every claim that some retrieved item supports is
+/// supported by an item its own segment cites, and the most authoritative of
+/// those cited supporting items meets the query's minimum tier.
+///
+/// [`grounding_violations`] asks whether *any* retrieved item entails a claim,
+/// and [`authority_violations`] whether *any* retrieved item of a sub-query
+/// meets the tier. Neither reads what the answer cites. So an answer that
+/// cites a primary source which does not support a claim, while the only
+/// support is an uncited forum post, passed both: grounded by the post,
+/// authoritative by the source. That is citation laundering: one weak source
+/// makes the claim, and a trusted one is credited with it. This check judges
+/// the claim on its own citations (`citations`, segment id → cited item ids):
+///
+/// - a supported claim whose segment cites nothing is `uncited` (`Major`);
+/// - one supported only by items it does not cite is `misattributed`
+///   (`Major`), and `laundering` (`Critical`, not retrievable) when it also
+///   cites an item more authoritative than any that supports it, which is
+///   the signature of the attack;
+/// - one supported by its own citations is held to the tier through the most
+///   authoritative of them: an `authority` violation scoped to the claim
+///   (`Critical`, retrievable) when even that one falls short.
+///
+/// An item supports a claim as [`grounding_violations`] says one does: every
+/// model that judged the pair entailed it. A premise of several items is
+/// cited when all of them are. A claim nothing supports is left to
+/// [`grounding_violations`], which already reports it.
+pub fn citation_violations(
+    plan: &QueryPlan,
+    claims: &[AtomicClaim],
+    entailments: &[EntailmentResult],
+    citations: &BTreeMap<String, Vec<Uuid>>,
+    items: &[RetrievedItem],
+    authority: &[AuthorityRecord],
+) -> Vec<Violation> {
+    let min_tier = plan.constraints.minimum_authority_tier;
+    let tier_of = |id: &Uuid| items.iter().find(|it| it.item_id == *id).map(|it| effective_tier(it, authority));
+    // A premise's tier is its weakest item's: it is only as authoritative as
+    // the least authoritative source it rests on.
+    let premise_tier = |p: &[Uuid]| p.iter().map(|id| tier_of(id).unwrap_or(u8::MAX)).max().unwrap_or(u8::MAX);
+    let mut out = Vec::new();
+    for claim in claims {
+        let mut by_premise: BTreeMap<&[Uuid], Vec<&EntailmentLabel>> = BTreeMap::new();
+        for e in entailments.iter().filter(|e| e.claim_id == claim.claim_id) {
+            by_premise.entry(e.premise_item_ids.as_slice()).or_default().push(&e.label);
+        }
+        let supporting: Vec<&[Uuid]> = by_premise
+            .iter()
+            .filter(|(_, labels)| labels.iter().all(|l| matches!(l, EntailmentLabel::Entails)))
+            .map(|(p, _)| *p)
+            .collect();
+        if supporting.is_empty() {
+            continue;
+        }
+        let cited: BTreeSet<Uuid> =
+            citations.get(&claim.segment_id).map(|c| c.iter().copied().collect()).unwrap_or_default();
+        let cited_support: Vec<&[Uuid]> =
+            supporting.iter().copied().filter(|p| p.iter().all(|id| cited.contains(id))).collect();
+        let base = |finding: &str| {
+            json!({
+                "kind": "attribution",
+                "finding": finding,
+                "claim_text": claim.text,
+                "segment_id": claim.segment_id,
+                "stakes": format!("{:?}", claim.stakes).to_lowercase(),
+                "cited_item_ids": cited.iter().map(Uuid::to_string).collect::<Vec<_>>(),
+                "supporting_item_ids": supporting.iter().flat_map(|p| p.iter()).map(Uuid::to_string).collect::<Vec<_>>(),
+                // Retrieval does not fix what an answer cites; composition does.
+                "retrievable": false,
+            })
+        };
+        if cited.is_empty() {
+            out.push(Violation {
+                violation_id: format!("attribution:{}", claim.claim_id),
+                message: format!("claim {:?} (segment {:?}) is supported but cites no source", claim.text, claim.segment_id),
+                severity: ViolationSeverity::Major,
+                claim_id: Some(claim.claim_id),
+                item_id: None,
+                detail: base("uncited"),
+            });
+            continue;
+        }
+        if cited_support.is_empty() {
+            let best_support = supporting.iter().map(|p| premise_tier(p)).min().unwrap_or(u8::MAX);
+            let best_cited = cited.iter().filter_map(tier_of).min();
+            let laundering = best_cited.is_some_and(|t| t < best_support);
+            let (severity, finding) = if laundering {
+                (ViolationSeverity::Critical, "laundering")
+            } else {
+                (ViolationSeverity::Major, "misattributed")
+            };
+            let mut detail = base(finding);
+            detail["supporting_tier"] = json!(best_support);
+            if let Some(t) = best_cited {
+                detail["cited_tier"] = json!(t);
+            }
+            out.push(Violation {
+                violation_id: format!("attribution:{}", claim.claim_id),
+                message: if laundering {
+                    format!(
+                        "claim {:?} is supported only by an uncited tier-{best_support} source while it cites a \
+                         more authoritative one that does not support it",
+                        claim.text
+                    )
+                } else {
+                    format!("claim {:?} is supported only by sources it does not cite", claim.text)
+                },
+                severity,
+                claim_id: Some(claim.claim_id),
+                item_id: None,
+                detail,
+            });
+            continue;
+        }
+        let best = cited_support.iter().map(|p| premise_tier(p)).min().unwrap_or(u8::MAX);
+        if best > min_tier {
+            out.push(Violation {
+                violation_id: format!("authority:{}", claim.claim_id),
+                message: format!(
+                    "claim {:?} rests on a cited tier-{best} source; the query requires tier ≤{min_tier}",
+                    claim.text
+                ),
+                severity: ViolationSeverity::Critical,
+                claim_id: Some(claim.claim_id),
+                item_id: None,
+                detail: json!({
+                    "kind": "authority",
+                    "scope": "cited",
+                    "claim_text": claim.text,
+                    "segment_id": claim.segment_id,
+                    "required_tier": min_tier,
+                    "found_tier": best,
+                    "retrievable": true,
+                }),
+            });
+        }
+    }
+    out
+}
+
+/// **Authority** — retrieved sources meet the query's minimum tier
+/// requirement (spec §6.1). The tier of what an answer *cites* is
+/// [`citation_violations`]'s to judge.
 ///
 /// We check that at least one retrieved item per sub-query meets
 /// `plan.constraints.minimum_authority_tier`. The check inspects
@@ -520,6 +663,133 @@ mod tests {
         assert!(v.is_empty());
     }
 
+    fn cites(ids: &[Uuid]) -> BTreeMap<String, Vec<Uuid>> {
+        BTreeMap::from([("s0".to_string(), ids.to_vec())])
+    }
+
+    /// **The attack.** A claim cites a primary source that does not support
+    /// it, and the only support is a forum post it does not cite. Grounding
+    /// passes (the post entails it) and authority passes (a tier-1 item was
+    /// retrieved for the sub-query), so the old checks passed it by
+    /// construction. Judged on its own citations it is laundering:
+    /// `Critical`, not retrievable, so the verdict refuses.
+    #[test]
+    fn citation_laundering_is_caught() {
+        let plan = plan_with(&["q0"], 2);
+        let primary = item_for("q0", "journal", 1);
+        let forum = item_for("q0", "forum", 4);
+        let claim = claim_with("X cures Y", ClaimStakes::High);
+        let es = [
+            entail(claim.claim_id, primary.item_id, EntailmentLabel::Neutral),
+            entail(claim.claim_id, forum.item_id, EntailmentLabel::Entails),
+        ];
+        let items = [primary.clone(), forum.clone()];
+        assert!(grounding_violations(std::slice::from_ref(&claim), &es).is_empty(), "grounded by the post");
+        assert!(authority_violations(&plan, &items, &[]).is_empty(), "a tier-1 item was retrieved");
+
+        let v = citation_violations(&plan, std::slice::from_ref(&claim), &es, &cites(&[primary.item_id]), &items, &[]);
+        assert_eq!(v.len(), 1, "{v:?}");
+        assert_eq!(v[0].detail["finding"], "laundering");
+        assert!(matches!(v[0].severity, ViolationSeverity::Critical));
+        assert!(!is_retrievable(&v[0]));
+        assert_eq!((v[0].detail["cited_tier"].as_u64(), v[0].detail["supporting_tier"].as_u64()), (Some(1), Some(4)));
+        assert!(matches!(
+            crate::verdict::determine_verdict(&v, &plan, 0),
+            jouleclaw_schema::VerificationAction::Refuse
+        ));
+    }
+
+    /// Supported by an item it does not cite, while citing nothing more
+    /// authoritative: misattributed, `Major`, so the answer degrades rather
+    /// than refuses.
+    #[test]
+    fn a_claim_supported_only_by_an_uncited_item_is_misattributed() {
+        let plan = plan_with(&["q0"], 4);
+        let cited = item_for("q0", "blog", 4);
+        let uncited = item_for("q0", "journal", 1);
+        let claim = claim_with("X cures Y", ClaimStakes::Medium);
+        let es = [
+            entail(claim.claim_id, cited.item_id, EntailmentLabel::Neutral),
+            entail(claim.claim_id, uncited.item_id, EntailmentLabel::Entails),
+        ];
+        let v = citation_violations(&plan, &[claim], &es, &cites(&[cited.item_id]), &[cited, uncited], &[]);
+        assert_eq!(v.len(), 1, "{v:?}");
+        assert_eq!(v[0].detail["finding"], "misattributed");
+        assert!(matches!(v[0].severity, ViolationSeverity::Major));
+    }
+
+    /// A supported claim whose segment cites nothing has no provenance.
+    #[test]
+    fn a_supported_claim_that_cites_nothing_is_uncited() {
+        let plan = plan_with(&["q0"], 4);
+        let item = item_for("q0", "journal", 1);
+        let claim = claim_with("X cures Y", ClaimStakes::Medium);
+        let es = [entail(claim.claim_id, item.item_id, EntailmentLabel::Entails)];
+        for citations in [cites(&[]), BTreeMap::new()] {
+            let v = citation_violations(&plan, std::slice::from_ref(&claim), &es, &citations, std::slice::from_ref(&item), &[]);
+            assert_eq!(v.len(), 1, "{v:?}");
+            assert_eq!(v[0].detail["finding"], "uncited");
+        }
+    }
+
+    /// Authority is judged on what supports the claim among its citations,
+    /// not on the best item retrieved, and not on the best item cited: citing
+    /// a primary source beside the post that actually supports it does not
+    /// lend the claim the source's tier.
+    #[test]
+    fn authority_is_judged_on_the_cited_item_that_supports_the_claim() {
+        let plan = plan_with(&["q0"], 2);
+        let primary = item_for("q0", "journal", 1);
+        let forum = item_for("q0", "forum", 4);
+        let claim = claim_with("X cures Y", ClaimStakes::High);
+        let es = [
+            entail(claim.claim_id, primary.item_id, EntailmentLabel::Neutral),
+            entail(claim.claim_id, forum.item_id, EntailmentLabel::Entails),
+        ];
+        let both = cites(&[primary.item_id, forum.item_id]);
+        let v = citation_violations(&plan, std::slice::from_ref(&claim), &es, &both, &[primary.clone(), forum.clone()], &[]);
+        assert_eq!(v.len(), 1, "{v:?}");
+        assert_eq!(v[0].detail["kind"], "authority");
+        assert_eq!(v[0].detail["scope"], "cited");
+        assert_eq!(v[0].detail["found_tier"], 4);
+        assert_eq!(v[0].claim_id, Some(claim.claim_id));
+        assert!(is_retrievable(&v[0]), "a more authoritative source may yet be found");
+
+        // Supported by the primary source it cites: nothing to report.
+        let es = [
+            entail(claim.claim_id, primary.item_id, EntailmentLabel::Entails),
+            entail(claim.claim_id, forum.item_id, EntailmentLabel::Entails),
+        ];
+        assert!(citation_violations(&plan, &[claim], &es, &both, &[primary, forum], &[]).is_empty());
+    }
+
+    /// A cited item supports a claim only when every model that judged the
+    /// pair entailed it, as grounding requires; and a claim nothing supports
+    /// is grounding's to report, not this check's.
+    #[test]
+    fn support_needs_every_model_and_an_unsupported_claim_is_left_to_grounding() {
+        let plan = plan_with(&["q0"], 4);
+        let cited = item_for("q0", "journal", 1);
+        let claim = claim_with("X cures Y", ClaimStakes::Medium);
+        let split = [
+            entail(claim.claim_id, cited.item_id, EntailmentLabel::Entails),
+            entail(claim.claim_id, cited.item_id, EntailmentLabel::Neutral),
+        ];
+        let c = cites(&[cited.item_id]);
+        assert!(citation_violations(&plan, std::slice::from_ref(&claim), &split, &c, std::slice::from_ref(&cited), &[]).is_empty());
+        assert_eq!(grounding_violations(std::slice::from_ref(&claim), &split).len(), 1);
+
+        // The models split on the cited item while every model entails an
+        // uncited one: the claim is supported, but not by what it cites. One
+        // model's "entails" on the citation does not make it the support.
+        let uncited = item_for("q0", "forum", 4);
+        let mut es = split.to_vec();
+        es.push(entail(claim.claim_id, uncited.item_id, EntailmentLabel::Entails));
+        let v = citation_violations(&plan, &[claim], &es, &c, &[cited, uncited], &[]);
+        assert_eq!(v.len(), 1, "{v:?}");
+        assert_eq!(v[0].detail["finding"], "laundering", "cites tier 1, supported only by an uncited tier 4");
+    }
+
     #[test]
     fn consistency_violation_when_both_entail_and_contradict() {
         let claim = claim_with("X is true", ClaimStakes::Medium);
diff --git a/jouleclaw/jouleclaw-rs/crates/jouleclaw-edge-cli/src/pipeline.rs b/jouleclaw/jouleclaw-rs/crates/jouleclaw-edge-cli/src/pipeline.rs
index 81ee9afb0..cab5d1a18 100644
--- a/jouleclaw/jouleclaw-rs/crates/jouleclaw-edge-cli/src/pipeline.rs
+++ b/jouleclaw/jouleclaw-rs/crates/jouleclaw-edge-cli/src/pipeline.rs
@@ -301,9 +301,13 @@ async fn run_inner<'e>(
         // Verify (with current reroute_passes count so the verdict
         // logic knows when the budget is exhausted).
         let stage = Instant::now();
+        // Each claim is judged on what its own segment cites, not on any
+        // retrieved item.
+        let citations = citations_of(&draft);
         let report = verify(
             &VerifyInputs::new(&plan, &exec.items, &[], &claims)
-                .with_reroute_count(reroute_passes),
+                .with_reroute_count(reroute_passes)
+                .with_citations(&citations),
             entailer_ref,
         )
         .map_err(|e| PipelineError::Verify(e.to_string()))?;
@@ -373,9 +377,11 @@ async fn run_inner<'e>(
         VerificationAction::ReRouteWithRefinement
     ) {
         let stage = Instant::now();
+        let citations = citations_of(&outcome.draft);
         let r = verify(
             &VerifyInputs::new(&outcome.plan, &outcome.items, &[], &outcome.claims)
-                .with_reroute_count(max_reroutes),
+                .with_reroute_count(max_reroutes)
+                .with_citations(&citations),
             entailer_ref,
         )
         .map_err(|e| PipelineError::Verify(e.to_string()))?;
@@ -449,6 +455,12 @@ const CACHE_VERSION_TAG: &str = "jouleclaw-edge-cli/0.1";
 /// Most fields are derived from the AnswerOrRefusal itself; the
 /// pipeline-specific bookkeeping (plan, draft, claims, items,
 /// stages timings) we reconstruct cheaply from the cached Answer.
+/// What each draft segment cites, by segment id: the citations each claim
+/// is judged on.
+fn citations_of(draft: &[DraftSegment]) -> BTreeMap<String, Vec<uuid::Uuid>> {
+    draft.iter().map(|s| (s.segment_id.clone(), s.cited_item_ids.clone())).collect()
+}
+
 fn rebuild_output_from_cache(
     query: &str,
     env: CachedAnswer,