{
  "format": "vercy-model-allocation-candidate/v1",
  "contourId": "EM-KNW-02",
  "proposedName": "Evidence Artifact / Source Work",
  "modelId": null,
  "registryId": null,
  "allocationState": "unassigned",
  "decision": "NEW MODEL",
  "canonicalPublishable": false,
  "identityTest": {
    "stableIdentity": "A source work or evidence item retains identity independently of every claim, citation, decision and consulted representation and can be cited repeatedly across contexts.",
    "versionIdentity": "Corrections, editions, retractions, withdrawals and successor expressions append dated source states or expressions while preserving the identity and provenance of earlier cited forms.",
    "independentLifecycle": [
      "created",
      "active",
      "superseded",
      "retracted",
      "withdrawn",
      "preserved",
      "disposed"
    ],
    "mastership": "source-work or evidence-artifact authority"
  },
  "boundary": {
    "owns": [
      "stable source-work or evidence-item identity",
      "source kind, creators, issuing authority and provenance",
      "dated editions, expressions or states",
      "representation and fixity references",
      "correction, supersession, retraction and withdrawal history",
      "canonical external identifiers and identifier provenance",
      "preservation and disposition references"
    ],
    "references": [
      {
        "target": "WM-KNW-008",
        "purpose": "Citation acts, locators, stance and verification"
      },
      {
        "target": "WM-KNW-007",
        "purpose": "Claims assessed or supported in citing contexts"
      },
      {
        "target": "WM-REC-001",
        "purpose": "Document and record manifestations or preserved representations"
      },
      {
        "target": "WM-REC-010",
        "purpose": "Authentic issued decision expressions when used as sources"
      }
    ],
    "excludes": [
      "citation identity, locator, stance or citing-context appraisal",
      "claim truth, confidence or commitment",
      "decision rationale, alternative evaluation or outcome",
      "record authenticity decisions owned by record authorities",
      "automatic propagation of source status into claim truth or decision validity"
    ]
  },
  "objects": {
    "SourceWork": {
      "identity": [
        "sourceWorkId"
      ],
      "required": [
        "sourceKind",
        "titleOrDesignation",
        "authorityRef",
        "status"
      ],
      "optional": [
        "creatorRefs",
        "canonicalIdentifierBindings",
        "successorRefs"
      ],
      "lifecycle": [
        "created",
        "active",
        "superseded",
        "retracted",
        "withdrawn",
        "preserved",
        "disposed"
      ]
    },
    "SourceExpression": {
      "identity": [
        "sourceWorkId",
        "expressionId"
      ],
      "required": [
        "sourceWorkRef",
        "status"
      ],
      "optional": [
        "issuedAt",
        "edition",
        "language",
        "supersedesExpressionRef",
        "effectiveFrom",
        "effectiveTo"
      ],
      "lifecycle": [
        "draft",
        "issued",
        "corrected",
        "superseded",
        "retracted",
        "withdrawn",
        "preserved",
        "disposed"
      ]
    },
    "SourceStatusEvent": {
      "identity": [
        "sourceStatusEventId"
      ],
      "required": [
        "targetKind",
        "targetRef",
        "eventKind",
        "eventTimeAtSource",
        "observedAt",
        "ingestedAt",
        "authorityRef"
      ],
      "optional": [
        "noticeSourceRef",
        "reason",
        "successorRef"
      ],
      "targetKinds": [
        "source-work",
        "source-expression"
      ]
    },
    "RepresentationBinding": {
      "identity": [
        "representationBindingId"
      ],
      "required": [
        "sourceExpressionRef",
        "representationRef",
        "contentDigest",
        "validFrom"
      ],
      "optional": [
        "validTo",
        "mediaType",
        "accessRef"
      ],
      "mastership": "The source aggregate owns only this association; representation identity, fixity and custody remain external, normally WM-REC-001."
    }
  },
  "invariants": [
    "A source-work identity is independent of every citation and citing context.",
    "A mutable URL or cached title never establishes source identity or fixity.",
    "Corrections, retractions and withdrawals append source-work or expression status history and never rewrite prior states.",
    "Source retraction does not automatically erase claims, decisions, rationale, dissent or fixed records.",
    "Citation stance and verification remain owned by WM-KNW-008 and are not source properties.",
    "Source status never by itself establishes or disproves the truth of a claim.",
    "A draft expression has no issuedAt; issuedAt becomes required when the expression first enters issued or a later state.",
    "Content digest belongs to a representation binding and never defines abstract source-expression identity.",
    "Event time at source, observation time and ingestion time remain separate and ordered evidence facts.",
    "An authority-issued status notice may bootstrap an event through noticeSourceRef when registered; evidence of the event is otherwise optional and never self-referentially required.",
    "WM-REC-001 or another representation authority masters representation identity, fixity and custody; this aggregate masters only the expression-to-representation association.",
    "External identifiers are scheme- and authority-qualified and may not be treated as globally unique without evidence.",
    "Superseded and retracted works and expressions remain resolvable for historical interpretation.",
    "Disposition preserves required provenance and cited representation fixity references."
  ],
  "holds": [
    "Registry identifier allocation is pending and no identifier may be guessed.",
    "Source-work, bibliographic, document, record, publication-edition and evidence boundaries require dedicated reconciliation.",
    "Parent models remain non-canonical and relation ledgers are incomplete.",
    "Citation deduplication must preserve distinct acts while resolving one source expression.",
    "Exact standards editions and public crosswalks remain unpinned.",
    "Package conversion and canonical live verification remain pending.",
    "No canonical publication until digest ownership, work-level status events and lifecycle alignment are accepted in the allocated contract.",
    "The independent audit records Grok team-process wording as non-evidentiary; only its returned semantic assertions are compared."
  ],
  "candidateRevision": 3
}