{
  "tool_id": "art-648-record-model-input-lineage",
  "kernel_id": "art-648-record-model-input-lineage",
  "display_name": "Record Model Input Lineage",
  "tool_version": "1.0.0",
  "mandate_type": "attestation_mandate",
  "purpose": "Attests attribute-level data lineage for a model's input data, which source system, which field, what transformation was applied, feeding which model run, distinct from every existing model-risk node (art-450/451/453/488/489), none of which attest where a model's input data came from, only what the model did with declared inputs. Input attributes are SUPPLIED and asserted by the caller (zero-egress); this node never fetches or validates against a live data warehouse or source system. An attribute declared without a source_system is reported as a legitimate finding (unmapped_attribute_count), never silently dropped or treated as an error. run_ref is optional, a caller with no model-run artifact yet still gets a valid lineage receipt. ECB Guide on effective risk data aggregation and risk reporting (May 2024) §3.4(3) requires complete, up-to-date data lineages on data attribute level for the risk indicators and critical data elements within scope; this node gives that its own citable artifact. SR 26-2 (effective 2026-04-17) scopes the model-risk context to conventional quantitative models only. Feeds the model-risk-lineage-pack chain (art-562) as an optional additional citation, never a required one.",
  "control_description": "Attests attribute-level data lineage for a model's input data, which source system, which field, what transformation was applied, feeding which model run, distinct from every existing model-risk node (art-450/451/453/488/489), none of which attest where a model's input data came from, only what the model did with declared inputs. Input attributes are SUPPLIED and asserted by the caller (zero-egress); this node never fetches or validates against a live data warehouse or source system. An attribute declared without a source_system is reported as a legitimate finding (unmapped_attribute_count), never silently dropped or treated as an error. run_ref is optional, a caller with no model-run artifact yet still gets a valid lineage receipt. ECB Guide on effective risk data aggregation and risk reporting (May 2024) §3.4(3) requires complete, up-to-date data lineages on data attribute level for the risk indicators and critical data elements within scope; this node gives that its own citable artifact. SR 26-2 (effective 2026-04-17) scopes the model-risk context to conventional quantitative models only. Feeds the model-risk-lineage-pack chain (art-562) as an optional additional citation, never a required one.",
  "declared_inputs": [
    "art-451-model-outcome-analysis",
    "art-488-model-replication-diff"
  ],
  "declared_outputs": [
    "art-562-compile-model-risk-lineage-pack"
  ],
  "kernel_digest": "sha256:eaebdde7fd42f9319b93555563ad4562fc7f0b4aced441f82296b30776fcda66",
  "trust_label": "independently verified: zkVM execution proof (risc0/groth16-bn254)",
  "data_vintage": "2026-08-21",
  "last_validated": "2026-08-21",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "ready",
  "wave": 104,
  "source_url": "https://ainumbers.co/chaingraph/art-648-record-model-input-lineage.html",
  "generated_at": "2026-08-22T18:50:53.805Z"
}