Core Data Model ERD (Versioned)

This diagram shows the full core data model with all versioned entities.

erDiagram
    CLAIM_CLUSTER {
        string ClusterID PK
        string EmbeddingVectorRef
        string Theme
    }

    CLAIM {
        string ClaimID PK
        string ClusterID FK
        string Status
        datetime CreatedAt
    }

    CLAIM_VERSION {
        string ClaimVersionID PK
        string ClaimID FK
        string Text
        string ClaimType
        string Domain
        datetime CreatedAt
    }

    SCENARIO {
        string ScenarioID PK
        string ClaimID FK
        string Name
        datetime CreatedAt
    }

    SCENARIO_VERSION {
        string ScenarioVersionID PK
        string ScenarioID FK
        string Definitions
        string Assumptions
        string Boundaries
        datetime CreatedAt
    }

    EVIDENCE {
        string EvidenceID PK
        string SourceType
        string URL
        float ReliabilityScore
    }

    EVIDENCE_VERSION {
        string EvidenceVersionID PK
        string EvidenceID FK
        string Summary
        float ReliabilityScore
        datetime CreatedAt
    }

    SCENARIO_EVIDENCE_LINK {
        string LinkID PK
        string ScenarioVersionID FK
        string EvidenceVersionID FK
        float Relevance
        string Direction
    }

    VERDICT {
        string VerdictID PK
        string ScenarioID FK
    }

    VERDICT_VERSION {
        string VerdictVersionID PK
        string VerdictID FK
        float Verdict
        float Confidence
        string Reasoning
        datetime CreatedAt
    }

    CLAIM_CLUSTER ||--o{ CLAIM : contains
    CLAIM ||--o{ CLAIM_VERSION : versions

    CLAIM ||--o{ SCENARIO : has
    SCENARIO ||--o{ SCENARIO_VERSION : versions

    EVIDENCE ||--o{ EVIDENCE_VERSION : versions

    SCENARIO_VERSION ||--o{ SCENARIO_EVIDENCE_LINK : links
    EVIDENCE_VERSION ||--o{ SCENARIO_EVIDENCE_LINK : linked

    SCENARIO ||--o{ VERDICT : assessed
    VERDICT ||--o{ VERDICT_VERSION : versions