{ "protocol": { "name": "CVP", "version": "1.0.0-proposed", "revision": "2026-09-13", "spec_sha256": "f62725968356c92930531cd6085db76e216da06e95be53d636b0d2cf3218b148", "spec": "https://www.calculatorx.com/developers/cvp/spec/1.0" }, "document_status": "proposed", "calculator": { "id": "worst-case-analysis", "version": "1.3.0", "title": "Worst-Case Tolerance Analysis Calculator", "formula_family": "tolerance-wca-rss", "capability_id": "engineering.tolerance.worst_case", "verification_revision": "2026-09-16.o3-rss", "related_capabilities": [ { "capability_id": "engineering.tolerance.stackup" }, { "capability_id": "engineering.tolerance.monte_carlo" }, { "capability_id": "engineering.uncertainty.propagate" } ] }, "profile": "engineering", "verified_scope": "1-D linear magnitude stack Σ|Tᵢ| with RSS comparison; canonical tolerances[] ≥ 0; REST signed-magnitude compatibility warning; O3 mpmath tabulated sum/RSS", "deferred_scope": "Nominal chains, asymmetric ±Tol, GD&T, geometric stacks, Monte Carlo, and general sensitivity |cᵢ|≠1 are out of this calculator", "unit_contract": { "model": "homogeneous implied unit", "conversion": "none", "mixed_unit_input": "unsupported" }, "status": "VERIFIED", "verification_status": "VERIFIED", "production_freshness": "CURRENT", "overall_trust": "VERIFIED", "runner": { "name": "cvp-runner", "version": "1.0.0" }, "environment": { "runtime": "node", "runtime_version": "20.19.2", "numeric_model": "IEEE-754 binary64", "os": "darwin" }, "suite": { "id": "worst-case-analysis", "version": "1.3.0", "uri": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/1.3.0.json", "verification_revision": "2026-09-16.o3-rss" }, "obligation_set": [ "CVP-PROV-01", "CVP-MODEL-01", "CVP-SCOPE-01", "CVP-UNIT-01", "CVP-REF-01", "CVP-GOLD-01", "CVP-BND-01", "CVP-INV-01", "CVP-NUM-01", "CVP-COV-01", "CVP-CONTRACT-01", "CVP-DEP-01", "CVP-ART-01", "CVP-PROD-01", "CVP-DIM-01", "CVP-PROP-01", "CVP-META-01", "CVP-XCAL-01", "CVP-IFACE-01" ], "provenance": { "mode": "direct", "sources": [ { "label": "NISTIR 6223 — Design for Tolerance of Electromechanical Assemblies", "kind": "other", "reference": "Worst-case tolerance analysis", "url": "https://nvlpubs.nist.gov/nistpubs/Legacy/IR/nistir6223.pdf" }, { "label": "ASME Y14.5 — Dimensioning and Tolerancing", "kind": "standard", "reference": "Dimensional tolerancing / GD&T semantics", "url": "https://www.asme.org/codes-standards/find-codes-standards/y14-5-dimensioning-tolerancing" } ] }, "reference": { "items": [ { "class": "O1", "reference_scope": "model", "scope": "model", "label": "Worst-case absolute tolerance stack with RSS comparison (|cᵢ|=1)" }, { "class": "O3", "reference_scope": "expected_values", "scope": "expected_values", "label": "Precomputed mpmath high-precision Σ|Tᵢ| / RSS (80 dps) rounded to nearest binary64 — not V8 hypot", "engine": { "name": "worst-case-mpmath-o3", "precision_bits": 265, "independent_of_iut": true, "same_runtime_as_iut": false, "library": "mpmath 1.4.1", "mpmath_dps": 80, "generator_version": "1.0.0", "generator_sha256": "5cc11f9d9a844d0ecc59c131b39aafdf2e6f7e3edef0b8a4a35dfdde6c6238d3", "table_sha256": "607ca78611141ec50d4334238ea22b9abfdf4b07b31dabb47fea3d3e6fae3790", "seed": "20260916.wca-o3", "source": "https://www.calculatorx.com/developers/cvp/reproduce/worst-case-o3-tables.json", "public_table": "/developers/cvp/reproduce/worst-case-o3-tables.json", "public_generator": "/developers/cvp/reproduce/generate-worst-case-o3.py" } }, { "class": "O3", "reference_scope": "numerical_behavior", "scope": "numerical_behavior", "label": "Same O3 table vs IUT stack; ≤2 ULP on tabulated vectors only, independent of Node/V8", "engine": { "name": "worst-case-mpmath-o3", "precision_bits": 265, "independent_of_iut": true, "same_runtime_as_iut": false, "library": "mpmath 1.4.1", "mpmath_dps": 80, "generator_version": "1.0.0", "generator_sha256": "5cc11f9d9a844d0ecc59c131b39aafdf2e6f7e3edef0b8a4a35dfdde6c6238d3", "table_sha256": "607ca78611141ec50d4334238ea22b9abfdf4b07b31dabb47fea3d3e6fae3790", "seed": "20260916.wca-o3", "source": "https://www.calculatorx.com/developers/cvp/reproduce/worst-case-o3-tables.json", "public_table": "/developers/cvp/reproduce/worst-case-o3-tables.json", "public_generator": "/developers/cvp/reproduce/generate-worst-case-o3.py" } }, { "class": "O2", "reference_scope": "expected_values", "scope": "expected_values", "label": "Separate-module worst-case tolerance oracle — same V8 binary64 as IUT", "engine": { "name": "worst-case-analysis-reference", "precision_bits": 53, "independent_of_iut": true } }, { "class": "O2", "reference_scope": "numerical_behavior", "scope": "numerical_behavior", "label": "Same O2 module backs ≤2 ULP stack comparison vs IUT", "engine": { "name": "worst-case-analysis-reference", "precision_bits": 53, "independent_of_iut": true } } ], "notes": "Golden expected values use a separate O2 module (not IUT transcription). O2 shares Node/V8 binary64 with the IUT unless noted otherwise." }, "controls": { "CVP-PROV-01": { "result": "PASS", "applicability": "required", "notes": "Sources present on evidence" }, "CVP-MODEL-01": { "result": "PASS", "applicability": "required", "notes": "stack = Σ|Tᵢ| with |cᵢ|=1; also reports RSS for comparison" }, "CVP-SCOPE-01": { "result": "PASS", "applicability": "required", "notes": "1-D magnitude stack — not a full nominal min/max chain. Canonical Agent/UI magnitudes are non-negative. REST tol[] / tol1… still accept a negative with SIGN_IGNORED_FOR_TOLERANCE_MAGNITUDE." }, "CVP-UNIT-01": { "result": "PASS", "applicability": "required", "notes": "Optional shared unit label (mm, in, µm, custom). All contributors must already use the same unit. CalculatorX performs no implicit unit conversion." }, "CVP-REF-01": { "result": "PASS", "applicability": "required", "notes": "O1 model + O3 expected_values + O3 numerical_behavior + O2 expected_values + O2 numerical_behavior" }, "CVP-GOLD-01": { "result": "PASS", "applicability": "required", "notes": "7/7 legacy golden; 4/4 oracle-backed numeric" }, "CVP-BND-01": { "result": "PASS", "applicability": "required", "notes": "7/7 numeric-edge Evidence + 4/4 near-singularity numeric; illegal enum/system is Invalid only" }, "CVP-INV-01": { "result": "PASS", "applicability": "required", "notes": "3 Evidence illegal-input + 6/6 oracle-backed error-code (exact_error_match, not ULP)" }, "CVP-NUM-01": { "result": "PASS", "applicability": "required", "notes": "max_error_observed_ulp=1; policy declared a priori" }, "CVP-COV-01": { "result": "PASS", "applicability": "required", "notes": "13/13 declared partitions (single-term, multi-term, all-zero, mixed-magnitude, signed-input-policy, large-N, scale-small, scale-large, canonical-array, legacy-fields, invalid-missing, invalid-numeric, xcal) · 7 legacy golden / 11 CVP boundary unique cases · 3 Evidence invalid-input (may overlap boundary)" }, "CVP-CONTRACT-01": { "result": "PASS", "applicability": "required", "notes": "8/8 CVP contract" }, "CVP-DEP-01": { "result": "PASS", "applicability": "required", "notes": "engine worst-case-analysis; Node binary64" }, "CVP-ART-01": { "result": "PASS", "applicability": "required", "notes": "release_integrity.status=verified · digests: artifact_evidence_sha256=Evidence core (Trust freshness) · cvp_evidence_digest=artifacts.evidence_digest (fingerprint v2) · evidence_bundle_sha256=legacy Evidence JSON bytes · evidence_catalog_digest=attested_catalog_sha256 · production_sha256=bound production report · see artifacts.digest_registry" }, "CVP-PROD-01": { "result": "PASS", "applicability": "required", "notes": "this calculator CURRENT · bound snapshot pass @ 2026-09-16T05:54:53.263Z · live site-wide report stale @ 2026-09-16T05:55:08.695Z (4 other capabilities) · local checks pass · attestation_id=2f7e4f846b3fa6a52bb63f24f386d81a9eba0a4ad663523e481dd38a9f3a92b8 · This calculator CURRENT · This calculator is not affected · Bound attestation PASS @ 2026-09-16T05:54:53.263Z · Live production status STALE (4 capabilities; 160 remain CURRENT) @ 2026-09-16T05:55:08.695Z · Public schema 1.3.0 matches · Semantic contract ✓ · Production attested · Public/cache ✓ · Origin ✓ · schema_const=1.3.0 · report output-const=pass · evidence-sha256=pass · semantic-contract=pass · capability-html-public-origin-agree=pass · cvp-manifest-public-origin-agree=pass · cvp-latest-alias-agrees=pass · cvp-immutable-manifest-fetch=pass · cvp-immutable-manifest-sha256=pass · cvp-latest-alias-matches-immutable=pass · cvp-reproduce-manifest-agree=pass · calculator-html-cvp-projection=pass · evidence-html-cvp-projection=pass · attested_evidence_sha256=ba77209b933b0e65701d6f50e7ff9c03dd0ef4057487c5c8e2c001251273b4f9 · verified_at=2026-09-16T02:28:24.066Z · evidence_attested_at=2026-09-16T02:28:24.066Z · last_confirmed_current_at=2026-09-16T05:54:53.263Z · rendered_at=2026-09-16T05:55:08.735Z · binds=cvp_core_sha256", "check_result": "PASS", "production_state": "CURRENT", "binding_current": true }, "CVP-DIM-01": { "result": "PASS", "applicability": "applicable", "notes": "Tolerance magnitude sum; unit is a shared label" }, "CVP-PROP-01": { "result": "PASS", "applicability": "applicable", "notes": "10/10 property" }, "CVP-META-01": { "result": "PASS", "applicability": "applicable", "notes": "3/3 metamorphic" }, "CVP-ROUND-01": { "result": "SKIP", "applicability": "not_applicable", "notes": "No inverse / round-trip vectors in pack — control not in obligation set" }, "CVP-XCAL-01": { "result": "PASS", "applicability": "applicable", "notes": "4/4 cross-calculator · xcal-wca-01 PASS vs engineering.tolerance.stackup; xcal-rss-01 PASS vs engineering.tolerance.stackup; xcal-wca-single PASS vs engineering.tolerance.stackup; xcal-wca-zeros PASS vs engineering.tolerance.stackup; xcal-mc-na N/A (Monte Carlo is the distribution / yield upgrade path. It does not encode Σ|T| as a deterministic peer identity.); xcal-unc-na N/A (Uncertainty Propagation encodes GUM linear combination with general |cᵢ|. This calculator is the unit-sensitivity |cᵢ|=1 magnitude subset, compared to Tolerance Stack-up Basic instead.)" }, "CVP-IFACE-01": { "result": "PASS", "applicability": "applicable", "notes": "UI (SSR) · REST · MCP equivalent (MCP uses calc API handler). ui-ssr is query-result HTML, not a live browser session. Error-path engine·REST·MCP 2/2 (status, code, calculation_version). SSR compared on URL-canonical requested calculations; empty query is idle (not an error) and JSON-typed object/array inputs are REST/MCP-only." }, "CVP-ORACLE-01": { "result": "PASS", "applicability": "higher_assurance", "notes": "O3 8/8 tabulated vectors vs IUT · ≤2 ULP vs O3 applies only to the published tabulated 1-D magnitude vectors (fields, array, signed REST, single, zeros, small, large, 3-4-5). Long equal-term sums such as n=100×0.01 remain Evidence/property and are not an O3 2-ULP claim. It is not a whole-domain guarantee and does not cover GD&T or nominal chains." }, "CVP-EXP-01": { "result": "SKIP", "applicability": "optional", "notes": "CalculatorX internal domain review — not CVP-EXP-01" } }, "tests": { "golden": { "passed": 4, "total": 4, "failed": 0, "case_ids": [ "g-tol-fields", "g-array", "g-signed", "g-one" ] }, "boundary": { "passed": 11, "total": 11, "failed": 0, "case_ids": [ "empty", "boundary-wca-zeros", "boundary-wca-signed", "boundary-wca-canonical", "boundary-wca-many", "boundary-wca-overflow", "boundary-wca-canonical-negative", "bnd-zeros", "bnd-small", "bnd-large", "bnd-many" ] }, "invalid": { "passed": 9, "total": 9, "failed": 0, "case_ids": [ "empty", "boundary-wca-overflow", "boundary-wca-canonical-negative", "inv-missing", "inv-canonical-negative", "inv-overflow", "inv-nan", "inv-malformed", "inv-unit-type" ], "comparison": "exact_error_match", "records": [ { "id": "inv-missing", "comparison": "exact_error_match", "expected": { "code": "MISSING_REQUIRED_INPUT" }, "actual": { "code": "MISSING_REQUIRED_INPUT" }, "match": true }, { "id": "inv-canonical-negative", "comparison": "exact_error_match", "expected": { "code": "NEGATIVE_TOLERANCE_MAGNITUDE" }, "actual": { "code": "NEGATIVE_TOLERANCE_MAGNITUDE" }, "match": true }, { "id": "inv-overflow", "comparison": "exact_error_match", "expected": { "code": "RESULT_OVERFLOW" }, "actual": { "code": "RESULT_OVERFLOW" }, "match": true }, { "id": "inv-nan", "comparison": "exact_error_match", "expected": { "code": "INVALID_NUMBER" }, "actual": { "code": "INVALID_NUMBER" }, "match": true }, { "id": "inv-malformed", "comparison": "exact_error_match", "expected": { "code": "INVALID_NUMBER" }, "actual": { "code": "INVALID_NUMBER" }, "match": true }, { "id": "inv-unit-type", "comparison": "exact_error_match", "expected": { "code": "INVALID_INPUT" }, "actual": { "code": "INVALID_INPUT" }, "match": true } ] }, "property": { "passed": 10, "total": 10, "failed": 0, "case_ids": [ "prop-wca", "prop-wc-ge-rss", "prop-one", "prop-zeros", "prop-canonical", "prop-scale-n", "prop-monotonic", "prop-warnings", "prop-sign-ignored-warning", "prop-wc-over-rss" ], "definition_ids": [ "sum-abs", "wc-ge-rss", "single-term", "all-zero", "canonical-echo", "n-scaling", "monotonic-add", "structured-warnings", "sign-compat-warning", "wc-rss-ratio" ] }, "round_trip": { "passed": 0, "total": 0, "failed": 0, "case_ids": [] }, "metamorphic": { "passed": 3, "total": 3, "failed": 0, "case_ids": [ "meta-permutation", "meta-sign", "meta-scale" ], "definition_ids": [ "order-invariance", "sign-invariance", "homogeneous-scale" ] }, "contract": { "passed": 8, "total": 8, "failed": 0 }, "cross_interface": { "passed": 5, "total": 5, "failed": 0, "case_ids": [ "iface-tol-fields", "iface-canonical", "iface-unit", "iface-missing", "iface-canonical-negative" ] }, "cross_calculator": { "passed": 4, "total": 4, "failed": 0, "case_ids": [ "xcal-wca-01", "xcal-rss-01", "xcal-wca-single", "xcal-wca-zeros" ] }, "o3": { "passed": 8, "total": 8, "failed": 0, "case_ids": [ "o3-tol-fields", "o3-array", "o3-signed", "o3-one", "o3-zeros", "o3-small", "o3-large", "o3-pythag" ], "generator_id": "worst-case-mpmath-o3", "seed": "20260916.wca-o3", "table_sha256": "607ca78611141ec50d4334238ea22b9abfdf4b07b31dabb47fea3d3e6fae3790", "max_error_ulp": 1, "reproduce": "python3 generate-worst-case-o3.py", "table_url": "/developers/cvp/reproduce/worst-case-o3-tables.json", "generator_url": "/developers/cvp/reproduce/generate-worst-case-o3.py", "claim_scope": "≤2 ULP vs O3 applies only to the published tabulated 1-D magnitude vectors (fields, array, signed REST, single, zeros, small, large, 3-4-5). Long equal-term sums such as n=100×0.01 remain Evidence/property and are not an O3 2-ULP claim. It is not a whole-domain guarantee and does not cover GD&T or nominal chains.", "reproduce_url": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/reproduce" } }, "coverage": { "partitions": [ { "id": "single-term", "description": "Single contributor", "exercised": true, "case_count": 5 }, { "id": "multi-term", "description": "Two or more contributors", "exercised": true, "case_count": 39 }, { "id": "all-zero", "description": "All-zero stack", "exercised": true, "case_count": 6 }, { "id": "mixed-magnitude", "description": "Unequal positive magnitudes", "exercised": true, "case_count": 29 }, { "id": "signed-input-policy", "description": "Signed REST compatibility vs canonical reject", "exercised": true, "case_count": 10 }, { "id": "large-N", "description": "Many contributors", "exercised": true, "case_count": 3 }, { "id": "scale-small", "description": "Tiny magnitudes", "exercised": true, "case_count": 2 }, { "id": "scale-large", "description": "Large finite magnitudes", "exercised": true, "case_count": 2 }, { "id": "canonical-array", "description": "Canonical tolerances[]", "exercised": true, "case_count": 16 }, { "id": "legacy-fields", "description": "REST tol1… fields", "exercised": true, "case_count": 16 }, { "id": "invalid-missing", "description": "Missing required tolerance", "exercised": true, "case_count": 2 }, { "id": "invalid-numeric", "description": "Non-finite / overflow / malformed / negative canonical", "exercised": true, "case_count": 7 }, { "id": "xcal", "description": "Cross-calculator identity vs Tolerance Stack-up Basic", "exercised": true, "case_count": 4 } ] }, "numerical": { "representation": "IEEE-754 binary64", "tolerance": { "type": "ulp", "value": 2, "rationale": "Absolute tolerance sum/RSS; ≤2 ULP vs separate-module O2 (same V8). Declared a priori.", "declared_before_evaluation": true }, "claim_scope": "≤2 ULP vs O3 applies only to the published tabulated 1-D magnitude vectors (fields, array, signed REST, single, zeros, small, large, 3-4-5). Long equal-term sums such as n=100×0.01 remain Evidence/property and are not an O3 2-ULP claim. It is not a whole-domain guarantee and does not cover GD&T or nominal chains.", "max_error_observed": 1, "records": [ { "id": "g-tol-fields", "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "golden" }, { "id": "g-array", "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": "mm", "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": "mm", "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "golden" }, { "id": "g-signed", "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.1, -0.2, 0.3 ], "tolerances": [ 0.1, -0.2, 0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "SIGN_IGNORED_FOR_TOLERANCE_MAGNITUDE", "severity": "warning", "detail": "Negative values are treated as tolerance magnitudes; the sign is ignored. This calculator does not encode dimensional direction.", "suggestion": "For +/− dimensional direction, use Tolerance Stack-up Engineering mode." }, { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, -0.2, 0.3 ], "tolerances": [ 0.1, -0.2, 0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "SIGN_IGNORED_FOR_TOLERANCE_MAGNITUDE", "severity": "warning", "detail": "Negative values are treated as tolerance magnitudes; the sign is ignored. This calculator does not encode dimensional direction.", "suggestion": "For +/− dimensional direction, use Tolerance Stack-up Engineering mode." }, { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "golden" }, { "id": "g-one", "reference": { "mode": "worst_case", "n": 1, "tol": [ 0.2 ], "tolerances": [ 0.2 ], "unit": null, "stack": 0.2, "stack_worst": 0.2, "stack_rss": 0.2, "rss_over_wca": 1, "wc_over_rss": 1, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 1, "tol": [ 0.2 ], "tolerances": [ 0.2 ], "unit": null, "stack": 0.2, "stack_worst": 0.2, "stack_rss": 0.2, "rss_over_wca": 1, "wc_over_rss": 1, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "golden" }, { "id": "bnd-zeros", "reference": { "mode": "worst_case", "n": 3, "tol": [ 0, 0, 0 ], "tolerances": [ 0, 0, 0 ], "unit": null, "stack": 0, "stack_worst": 0, "stack_rss": 0, "rss_over_wca": null, "wc_over_rss": null, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0, 0, 0 ], "tolerances": [ 0, 0, 0 ], "unit": null, "stack": 0, "stack_worst": 0, "stack_rss": 0, "rss_over_wca": null, "wc_over_rss": null, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "boundary" }, { "id": "bnd-small", "reference": { "mode": "worst_case", "n": 2, "tol": [ 1e-12, 2e-12 ], "tolerances": [ 1e-12, 2e-12 ], "unit": null, "stack": 3e-12, "stack_worst": 3e-12, "stack_rss": 2.2360679774997897e-12, "rss_over_wca": 0.7453559924999299, "wc_over_rss": 1.3416407864998738, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 2, "tol": [ 1e-12, 2e-12 ], "tolerances": [ 1e-12, 2e-12 ], "unit": null, "stack": 3e-12, "stack_worst": 3e-12, "stack_rss": 2.2360679774997897e-12, "rss_over_wca": 0.7453559924999299, "wc_over_rss": 1.3416407864998738, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "boundary" }, { "id": "bnd-large", "reference": { "mode": "worst_case", "n": 2, "tol": [ 1000000, 2000000 ], "tolerances": [ 1000000, 2000000 ], "unit": null, "stack": 3000000, "stack_worst": 3000000, "stack_rss": 2236067.9774997896, "rss_over_wca": 0.7453559924999299, "wc_over_rss": 1.3416407864998738, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 2, "tol": [ 1000000, 2000000 ], "tolerances": [ 1000000, 2000000 ], "unit": null, "stack": 3000000, "stack_worst": 3000000, "stack_rss": 2236067.9774997896, "rss_over_wca": 0.7453559924999299, "wc_over_rss": 1.3416407864998738, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "boundary" }, { "id": "bnd-many", "reference": { "mode": "worst_case", "n": 100, "tol": [ 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01 ], "tolerances": [ 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01 ], "unit": null, "stack": 1.0000000000000007, "stack_worst": 1.0000000000000007, "stack_rss": 0.09999999999999998, "rss_over_wca": 0.09999999999999991, "wc_over_rss": 10.000000000000009, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 100, "tol": [ 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01 ], "tolerances": [ 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01, 0.01 ], "unit": null, "stack": 1.0000000000000007, "stack_worst": 1.0000000000000007, "stack_rss": 0.09999999999999998, "rss_over_wca": 0.09999999999999991, "wc_over_rss": 10.000000000000009, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "boundary" }, { "id": "meta-permutation", "reference": 1, "actual": 1, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0 }, "follow": { "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.2, 0.1, 0.1 ], "tolerances": [ 0.2, 0.1, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.2, 0.1, 0.1 ], "tolerances": [ 0.2, 0.1, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0 }, "relation": { "reference": 1, "actual": 1, "error_ulp": 0 } } }, { "id": "meta-sign", "reference": 1, "actual": 1, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.3 ], "tolerances": [ 0.1, 0.2, 0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.3 ], "tolerances": [ 0.1, 0.2, 0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0 }, "follow": { "reference": { "mode": "worst_case", "n": 3, "tol": [ -0.1, -0.2, -0.3 ], "tolerances": [ -0.1, -0.2, -0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "SIGN_IGNORED_FOR_TOLERANCE_MAGNITUDE", "severity": "warning", "detail": "Negative values are treated as tolerance magnitudes; the sign is ignored. This calculator does not encode dimensional direction.", "suggestion": "For +/− dimensional direction, use Tolerance Stack-up Engineering mode." }, { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ -0.1, -0.2, -0.3 ], "tolerances": [ -0.1, -0.2, -0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "SIGN_IGNORED_FOR_TOLERANCE_MAGNITUDE", "severity": "warning", "detail": "Negative values are treated as tolerance magnitudes; the sign is ignored. This calculator does not encode dimensional direction.", "suggestion": "For +/− dimensional direction, use Tolerance Stack-up Engineering mode." }, { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0 }, "relation": { "reference": 1, "actual": 1, "error_ulp": 0 } } }, { "id": "meta-scale", "reference": 2, "actual": 2, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0 }, "follow": { "reference": { "mode": "worst_case", "n": 3, "tol": [ 0.2, 0.4, 0.2 ], "tolerances": [ 0.2, 0.4, 0.2 ], "unit": null, "stack": 0.8, "stack_worst": 0.8, "stack_rss": 0.48989794855663565, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.2, 0.4, 0.2 ], "tolerances": [ 0.2, 0.4, 0.2 ], "unit": null, "stack": 0.8, "stack_worst": 0.8, "stack_rss": 0.48989794855663565, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0 }, "relation": { "reference": 2, "actual": 2, "error_ulp": 0 } } }, { "id": "o3-tol-fields", "reference": { "stack": 0.4, "stack_rss": 0.24494897427831783, "n": 3 }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": null, "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-array", "reference": { "stack": 0.4, "stack_rss": 0.24494897427831783, "n": 3 }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, 0.2, 0.1 ], "tolerances": [ 0.1, 0.2, 0.1 ], "unit": "mm", "stack": 0.4, "stack_worst": 0.4, "stack_rss": 0.24494897427831783, "rss_over_wca": 0.6123724356957946, "wc_over_rss": 1.632993161855452, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-signed", "reference": { "stack": 0.6, "stack_rss": 0.3741657386773941, "n": 3 }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0.1, -0.2, 0.3 ], "tolerances": [ 0.1, -0.2, 0.3 ], "unit": null, "stack": 0.6000000000000001, "stack_worst": 0.6000000000000001, "stack_rss": 0.37416573867739417, "rss_over_wca": 0.6236095644623235, "wc_over_rss": 1.6035674514745464, "warnings": [ { "code": "SIGN_IGNORED_FOR_TOLERANCE_MAGNITUDE", "severity": "warning", "detail": "Negative values are treated as tolerance magnitudes; the sign is ignored. This calculator does not encode dimensional direction.", "suggestion": "For +/− dimensional direction, use Tolerance Stack-up Engineering mode." }, { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 1, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-one", "reference": { "stack": 0.2, "stack_rss": 0.2, "n": 1 }, "actual": { "mode": "worst_case", "n": 1, "tol": [ 0.2 ], "tolerances": [ 0.2 ], "unit": null, "stack": 0.2, "stack_worst": 0.2, "stack_rss": 0.2, "rss_over_wca": 1, "wc_over_rss": 1, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-zeros", "reference": { "stack": 0, "stack_rss": 0, "n": 3 }, "actual": { "mode": "worst_case", "n": 3, "tol": [ 0, 0, 0 ], "tolerances": [ 0, 0, 0 ], "unit": null, "stack": 0, "stack_worst": 0, "stack_rss": 0, "rss_over_wca": null, "wc_over_rss": null, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-small", "reference": { "stack": 3e-12, "stack_rss": 2.2360679774997897e-12, "n": 2 }, "actual": { "mode": "worst_case", "n": 2, "tol": [ 1e-12, 2e-12 ], "tolerances": [ 1e-12, 2e-12 ], "unit": null, "stack": 3e-12, "stack_worst": 3e-12, "stack_rss": 2.2360679774997897e-12, "rss_over_wca": 0.7453559924999299, "wc_over_rss": 1.3416407864998738, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-large", "reference": { "stack": 3000000, "stack_rss": 2236067.9774997896, "n": 2 }, "actual": { "mode": "worst_case", "n": 2, "tol": [ 1000000, 2000000 ], "tolerances": [ 1000000, 2000000 ], "unit": null, "stack": 3000000, "stack_worst": 3000000, "stack_rss": 2236067.9774997896, "rss_over_wca": 0.7453559924999299, "wc_over_rss": 1.3416407864998738, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" }, { "id": "o3-pythag", "reference": { "stack": 0.7, "stack_rss": 0.5, "n": 2 }, "actual": { "mode": "worst_case", "n": 2, "tol": [ 0.3, 0.4 ], "tolerances": [ 0.3, 0.4 ], "unit": null, "stack": 0.7, "stack_worst": 0.7, "stack_rss": 0.5, "rss_over_wca": 0.7142857142857143, "wc_over_rss": 1.4, "warnings": [ { "code": "RSS_COMPARISON_ASSUMPTION", "severity": "info", "detail": "RSS comparison assumes tolerance magnitudes have a consistent statistical basis and contributions are independent.", "suggestion": "For distribution-aware statistical analysis, use Monte Carlo Tolerance Analysis (engineering.tolerance.monte_carlo)." }, { "code": "WCA_MODEL_SCOPE", "severity": "info", "detail": "Worst-case bounds the declared 1-D linear stack when every included contributor remains within its specified limits. Model assumes unit sensitivity |cᵢ|=1.", "suggestion": "For nominal / direction / asymmetric ±Tol use Tolerance Stack-up. For general |cᵢ| use Uncertainty Propagation." } ] }, "error_ulp": 0, "threshold_ulp": 2, "suite": "o3" } ] }, "interfaces": { "compared": [ "ui-ssr", "rest", "mcp" ], "result": "PASS", "notes": "UI (SSR) · REST · MCP equivalent (MCP uses calc API handler). ui-ssr is query-result HTML, not a live browser session. Error-path engine·REST·MCP 2/2 (status, code, calculation_version). SSR compared on URL-canonical requested calculations; empty query is idle (not an error) and JSON-typed object/array inputs are REST/MCP-only." }, "artifacts": { "evidence_bundle_sha256": "051683c56a61a5031351413242a6f37d8f644bb7f9733a8e520d364d1b3f3a9b", "evidence_digest": "9146ee258d5506d5011fe7a5ea9d4d0150b421e1e98147ead2991136b5876b68", "production_sha256": "ba77209b933b0e65701d6f50e7ff9c03dd0ef4057487c5c8e2c001251273b4f9", "attested_catalog_sha256": "f89399c8dda78af9b2d784bf34d77b786cf749392d54e5e00bd3707c3fcdd13e", "production_checks": [ { "id": "engineering.tolerance.worst_case:output-const", "status": "pass", "detail": "output const 1.3.0 vs capability 1.3.0", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:evidence-sha256", "status": "pass", "detail": "0f9ce80fc357", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:semantic-contract", "status": "pass", "detail": "27/27", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:capability-html-public-origin-agree", "status": "pass", "detail": "public 1.3.0 vs origin 1.3.0", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:cvp-manifest-public-origin-agree", "status": "pass", "detail": "engineering.tolerance.worst_case/1.3.0/2026-09-16.o3-rss/engineering/9146ee258d55", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z", "projection_compared": false }, { "id": "engineering.tolerance.worst_case:cvp-latest-alias-agrees", "status": "pass", "detail": "engineering.tolerance.worst_case/1.3.0/2026-09-16.o3-rss/engineering/9146ee258d55", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z", "projection_compared": false }, { "id": "engineering.tolerance.worst_case:cvp-immutable-manifest-fetch", "status": "pass", "detail": "public=200 origin=200", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:cvp-immutable-manifest-sha256", "status": "pass", "detail": "9146ee258d55", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:cvp-latest-alias-matches-immutable", "status": "pass", "detail": "engineering.tolerance.worst_case/1.3.0/2026-09-16.o3-rss/engineering/9146ee258d55", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z", "projection_compared": false }, { "id": "engineering.tolerance.worst_case:cvp-reproduce-manifest-agree", "status": "pass", "detail": "2026-09-16.o3-rss · 607ca7861114", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:calculator-html-cvp-projection", "status": "pass", "detail": "matches Trust display", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" }, { "id": "engineering.tolerance.worst_case:evidence-html-cvp-projection", "status": "pass", "detail": "matches Trust display", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-16T02:28:24.066Z" } ], "digest_registry": { "digest_algorithm": "sha256", "canonicalization": "json-sorted-keys-utf8", "entries": [ { "name": "cvp_core_sha256", "field": "artifacts.cvp_core_sha256", "digest_scope": "cvp_verification_fingerprint_v2", "value": "9146ee258d5506d5011fe7a5ea9d4d0150b421e1e98147ead2991136b5876b68", "note": "Immutable verification core; excludes attestation/live-status and Evidence contract counts" }, { "name": "cvp_evidence_digest", "field": "artifacts.evidence_digest", "digest_scope": "cvp_verification_fingerprint_v2", "value": "9146ee258d5506d5011fe7a5ea9d4d0150b421e1e98147ead2991136b5876b68", "note": "Alias of cvp_core_sha256 (historical field name)" }, { "name": "artifact_evidence_sha256", "field": "release_integrity.digests.evidence_core_sha256", "digest_scope": "evidence_artifact_core", "value": "0f9ce80fc3570b84e256eafbb9157d18c84db56b7c65a0fe46e2fbc3dbbe29e9", "note": "Published Evidence JSON core — Trust freshness / production bind subject" }, { "name": "evidence_catalog_digest", "field": "artifacts.attested_catalog_sha256", "digest_scope": "capability_catalog", "value": "f89399c8dda78af9b2d784bf34d77b786cf749392d54e5e00bd3707c3fcdd13e", "note": "Capability catalog integrity; site-wide, not per-suite fingerprint" } ] }, "cvp_core_sha256": "9146ee258d5506d5011fe7a5ea9d4d0150b421e1e98147ead2991136b5876b68" }, "dependencies": [ { "name": "worst-case-analysis-engine", "version": "1.3.0" }, { "name": "worst-case-analysis-reference-oracle", "version": "1.0.0" }, { "name": "worst-case-mpmath-o3-table", "version": "worst-case-mpmath-o3" }, { "name": "engineering.tolerance.stackup", "version": "1.4.0", "role": "cross_calculator_peer", "capability_id": "engineering.tolerance.stackup", "evidence_digest": "9ae988cdc138cb64fb85617df7842060c25debec031a19d030a145db654fa8bf", "evidence": "https://www.calculatorx.com/evidence/engineering.tolerance.stackup/1.4.0.cvp.json" }, { "name": "node", "version": "20.19.2" } ], "attestation": { "status": "CURRENT", "href": "/.well-known/calculatorx-production-attestation.json", "id": "2f7e4f846b3fa6a52bb63f24f386d81a9eba0a4ad663523e481dd38a9f3a92b8", "attested_at": "2026-09-16T02:28:24.066Z", "last_confirmed_current_at": "2026-09-16T05:54:53.263Z", "site_attestation_current": false, "capability_attestation_current": true, "bound_snapshot_status": "pass", "live_report_status": "stale", "bound_attested_at": "2026-09-16T05:54:53.263Z", "live_updated_at": "2026-09-16T05:55:08.695Z", "bound_snapshot": { "status": "pass", "attested_at": "2026-09-16T05:54:53.263Z", "site_stale_count": 4 }, "live_site_status": { "href": "/.well-known/calculatorx-production-attestation.json" }, "bound_snapshot_site_stale_count": 4, "site_stale_capability_count": 4, "evidence_attested_at": "2026-09-16T02:28:24.066Z" }, "domain_review": { "status": "ABSENT", "spec_version": "1.3.0", "external_third_party": false, "note": "Supplemental CalculatorX internal domain review — see internal_review" }, "internal_review": { "status": "PASS", "reviewer_role": "tolerance-engineer", "reviewed_by": "CalculatorX tolerance / mechanical engineering review", "spec_version": "1.3.0", "independence": "internal", "external_third_party": false, "layers": [ { "id": "model", "label": "Model / formula", "reviewed_at": "2026-08-12", "status": "current", "note": "Formula and engineering assumptions unchanged in v1.3.0.", "scope": [ "formula", "assumptions", "limitations", "sources" ] }, { "id": "interface", "label": "Interface / input semantics", "reviewed_at": "2026-09-12", "status": "current", "note": "Canonical non-negative magnitudes, REST signed compatibility, overflow, and unit label policy.", "scope": [ "input semantics", "error codes", "REST compatibility", "unit policy", "tests" ] } ] }, "timestamps": { "verified_at": "2026-09-16T02:28:24.066Z", "generated_at": "2026-09-16T02:28:24.066Z", "rendered_at": "2026-09-16T05:55:08.735Z", "notes": "verified_at/generated_at mark the first publication of this cvp_core_sha256 (artifacts.evidence_digest alias) for suite verification. evidence_attested_at/attested_at is the first production bind of that core digest. last_confirmed_current_at is the latest site-wide report that still confirms CURRENT. rendered_at is this JSON serialization and is not part of cvp_core_sha256 / evidence_digest. Production attestation binds cvp_core_sha256 (binds evidence_digest). Causal order: verified_at ≤ evidence_attested_at ≤ last_confirmed_current_at. attestation.bound_snapshot.site_stale_count is the site-wide stale capability count at Manifest bind time — not a live value. Fetch attestation.live_site_status.href for the current site report." }, "links": { "legacy_evidence": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/1.3.0.json", "evidence_page": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/1.3.0", "calculator": "https://www.calculatorx.com/calc/engineering/worst-case-analysis", "schema": "https://www.calculatorx.com/developers/cvp/schema/cvp-evidence-1.0.json", "protocol": "https://www.calculatorx.com/developers/cvp/spec/1.0", "manifest": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/1.3.0.cvp.json", "manifest_immutable": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/1.3.0/2026-09-16.o3-rss.cvp.json", "reproduce": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/reproduce", "o3_table": "https://www.calculatorx.com/developers/cvp/reproduce/worst-case-o3-tables.json", "o3_generator": "https://www.calculatorx.com/developers/cvp/reproduce/generate-worst-case-o3.py", "manifest_core": "https://www.calculatorx.com/evidence/engineering.tolerance.worst_case/1.3.0/2026-09-16.o3-rss.9146ee258d55.cvp.json" } }