{
  "capability_id": "chemistry.equilibrium.weak_base",
  "calculation_version": "1.0.4",
  "protocol_version": "1.0.0-proposed",
  "protocol_document_status": "proposed",
  "verification_revision": "2026-10-13.node22-residual-replay",
  "claim_scope": "O2: monoprotic weak-base ICE vs a separate-module quadratic or Newton cubic. Agreement is absolute 1e-8 because the IUT root is a residual solver. Not a buffer. Absolute 1e-8 vs O3 applies only to the published tabulated weak-base vectors. Not a buffer.",
  "oracle": {
    "class": "O3",
    "library": "mpmath 1.4.1",
    "mpmath_dps": 80,
    "backend": null,
    "rounding": null,
    "independent_of_iut": true,
    "generator_id": "weak-base-mpmath-o3",
    "generator_version": "1.0.0",
    "generator_sha256": "3bbe6db2bce481fc58317dc2b51a2ec4ec66d68a2e77649878cd98fbdfe1c7d2",
    "table_sha256": "77f3750d01839499a0854ed2b025b7d757c7ccbb22a9cbf1b838456d203c8992"
  },
  "result_summary": {
    "passed": 8,
    "total": 8,
    "failed": 0,
    "max_error_ulp": 0,
    "threshold_ulp": 1e-8,
    "max_threshold_ulp": 1e-8
  },
  "public_files": {
    "manifest": "/evidence/chemistry.equilibrium.weak_base/1.0.4.cvp.json",
    "this_file": "/evidence/chemistry.equilibrium.weak_base/reproduce.json"
  },
  "vectors": [],
  "disclosure": {
    "policy": "calculatorx-public-evidence-v1",
    "full_validation": "private",
    "representation": "summary",
    "kind": "reproduce"
  }
}