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3	3	This page describes the current data model for FactHarbor.
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	5	+== Core Data Model Refinements ==
	6	+
	7	+The system relies on the following versioned core entities:
	8	+
	9	+* **CLAIM_CLUSTER**
	10	+** ``ClusterID`` (PK), ``EmbeddingVectorRef``, ``Theme``
	11	+** Groups related claims into topical clusters.
	12	+
	13	+* **CLAIM / CLAIM_VERSION**
	14	+** ``CLAIM`` is the long‑lived anchor for a real‑world claim.
	15	+** ``CLAIM_VERSION`` is an immutable snapshot of wording + basic metadata.
	16	+** Verdicts are **NOT** attached to ClaimVersion but to Scenario.
	17	+
	18	+* **SCENARIO / SCENARIO_VERSION**
	19	+** ``SCENARIO`` represents a stable interpretive context for a claim.
	20	+** ``SCENARIO_VERSION`` is an immutable snapshot of that context (definitions, assumptions, boundaries).
	21	+** Verdicts are attached to SCENARIO, with verdict history in VERDICT_VERSION.
	22	+
	23	+* **EVIDENCE / EVIDENCE_VERSION**
	24	+** ``EVIDENCE`` is the logical source (report, article, dataset…).
	25	+** ``EVIDENCE_VERSION`` is the extracted/processed snapshot (summary, reliability, etc.).
	26	+
	27	+* **VERDICT / VERDICT_VERSION**
	28	+** ``VERDICT`` represents “this scenario is evaluated for this claim.”
	29	+** ``VERDICT_VERSION`` is an immutable snapshot of a concrete evaluation (likelihood, confidence, reasoning, timestamp).
	30	+
	31	+* **SCENARIO_EVIDENCE_VERSION_LINK**
	32	+** Connects ``ScenarioVersion`` ↔ ``EvidenceVersion`` (many‑to‑many).
	33	+** Fields: Relevance, Direction (SUPPORTS / CONTRADICTS / NEUTRAL).
	34	+** **Rule:** The link always targets VERSIONED entities, never the base tables.
	35	+
5	5	== Core Data Model ERD ==
6		-The authoritative ERD is provided via the dedicated diagram page:
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8	8	{{include reference="FactHarbor.Specification.Diagrams.Core Data Model ERD.WebHome"/}}