{
  "tool_id": "art-286-anchored-extract-verifier",
  "kernel_id": "art-286-anchored-extract-verifier",
  "display_name": "Anchored Extract Verifier",
  "tool_version": "1.0.0",
  "mandate_type": "compliance_mandate",
  "purpose": "Verifies an extract's Merkle inclusion against a root only when that root is anchored by a recognized source: a recognized OCG artifact/chain envelope, or an external anchor (RFC 3161 timestamp, OpenTimestamps, Sigstore transparency log, or an on-chain commitment composed via verify_eth_state_proof, VR-1). Explicitly refuses (anchored:false) a self-produced root with no recognized anchor class; the universal self-produced hash-chain explorer stays dead. Not-X-use-Y: use art-280 (verify_reserve_proof) for Merkle-SUM Proof-of-Reserves inclusion specifically; this kernel verifies plain (non-sum) Merkle inclusion for any anchored extract.",
  "control_description": "Verifies an extract's Merkle inclusion against a root only when that root is anchored by a recognized source: a recognized OCG artifact/chain envelope, or an external anchor (RFC 3161 timestamp, OpenTimestamps, Sigstore transparency log, or an on-chain commitment composed via verify_eth_state_proof, VR-1). Explicitly refuses (anchored:false) a self-produced root with no recognized anchor class; the universal self-produced hash-chain explorer stays dead. Not-X-use-Y: use art-280 (verify_reserve_proof) for Merkle-SUM Proof-of-Reserves inclusion specifically; this kernel verifies plain (non-sum) Merkle inclusion for any anchored extract.",
  "declared_inputs": [],
  "declared_outputs": [],
  "kernel_digest": "sha256:7532df2eced1bf011b8bb608c7ca0038e116d7d554d5439e90d09905d997091c",
  "trust_label": "independently verified -- zkVM execution proof (risc0/groth16-bn254)",
  "data_vintage": "2026-07-10",
  "last_validated": "2026-07-10",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "ready",
  "wave": 51,
  "source_url": "https://ainumbers.co/chaingraph/art-286-anchored-extract-verifier.html",
  "generated_at": "2026-07-25T20:02:55.601Z"
}