{ "protocol": { "name": "CVP", "version": "1.0.0-proposed" }, "document_status": "proposed", "calculator": { "id": "square-root", "version": "1.0.3", "title": "Square Root Calculator", "formula_family": "square_root", "capability_id": "math.square_root", "verification_revision": "2026-09-09.o3-boundary" }, "profile": "core", "status": "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": "square-root", "version": "1.0.3", "uri": "https://www.calculatorx.com/evidence/math.square_root/1.0.3.json", "verification_revision": "2026-09-09.o3-boundary" }, "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-PROP-01", "CVP-META-01", "CVP-ROUND-01", "CVP-IFACE-01" ], "provenance": { "mode": "direct", "sources": [ { "label": "NIST Digital Library of Mathematical Functions, Chapter 4", "kind": "other", "reference": "Logarithm, Exponential, Powers", "url": "https://dlmf.nist.gov/4" }, { "label": "NIST DLMF §4.2(iv)", "kind": "other", "reference": "Powers: principal value z^a = exp(a ln z)", "url": "https://dlmf.nist.gov/4.2" }, { "label": "CalculatorX mathematical conventions", "kind": "other", "reference": "Principal real root; principal imaginary for x < 0" } ] }, "reference": { "items": [ { "class": "O1", "reference_scope": "model", "scope": "model", "label": "Principal square root (real or ±√|x| i)" }, { "class": "O3", "reference_scope": "expected_values", "scope": "expected_values", "label": "Precomputed mpmath 1.4.1 sqrt (80 dps, python backend, round-to-nearest-binary64) — not Node Math.*", "engine": { "name": "sqrt-mpmath-o3", "precision_bits": 265, "independent_of_iut": true, "library": "mpmath 1.4.1", "mpmath_dps": 80, "rounding": "round-to-nearest-binary64", "backend": "python", "generator_version": "1.0.0", "generator_sha256": "3453ec60bd03738a1f1f3723baed7e617ff49466452efab1844fe68b8f654cea", "table_sha256": "efdad939a92a67df1f3995db36c52bb87f428a59fc73568f789c02540f4372ee", "seed": "20260907", "source": "https://www.calculatorx.com/developers/cvp/reproduce/math-o3-tables.json", "public_table": "/developers/cvp/reproduce/math-o3-tables.json", "public_generator": "/developers/cvp/reproduce/generate-math-o3.py", "public_checker": "/developers/cvp/reproduce/check-math-o3-rest.py", "extra_table": "/developers/cvp/reproduce/sqrt-o3-extra.json", "extra_table_sha256": "a375cf3bf96acf20e8495a9af3b8ff5f5229019000d38ffd7bff013060966738", "extra_generator": "/developers/cvp/reproduce/generate-sqrt-o3-extra.py", "extra_generator_sha256": "48b0df4e66dfd3e7754e231b33d1c4fbdfb83f09f5b9fb15d035416f809831cd" } }, { "class": "O3", "reference_scope": "numerical_behavior", "scope": "numerical_behavior", "label": "Same O3 table vs IUT principal; ≤2 ULP on tabulated vectors only, not the whole domain. Distinct from legacy Evidence case-level tol.", "engine": { "name": "sqrt-mpmath-o3", "precision_bits": 265, "independent_of_iut": true, "library": "mpmath 1.4.1", "mpmath_dps": 80, "rounding": "round-to-nearest-binary64", "backend": "python", "generator_version": "1.0.0", "generator_sha256": "3453ec60bd03738a1f1f3723baed7e617ff49466452efab1844fe68b8f654cea", "table_sha256": "efdad939a92a67df1f3995db36c52bb87f428a59fc73568f789c02540f4372ee", "seed": "20260907", "source": "https://www.calculatorx.com/developers/cvp/reproduce/math-o3-tables.json", "public_table": "/developers/cvp/reproduce/math-o3-tables.json", "public_generator": "/developers/cvp/reproduce/generate-math-o3.py", "public_checker": "/developers/cvp/reproduce/check-math-o3-rest.py", "extra_table": "/developers/cvp/reproduce/sqrt-o3-extra.json", "extra_table_sha256": "a375cf3bf96acf20e8495a9af3b8ff5f5229019000d38ffd7bff013060966738", "extra_generator": "/developers/cvp/reproduce/generate-sqrt-o3-extra.py", "extra_generator_sha256": "48b0df4e66dfd3e7754e231b33d1c4fbdfb83f09f5b9fb15d035416f809831cd" } }, { "class": "O2", "reference_scope": "expected_values", "scope": "expected_values", "label": "Separate-module square-root oracle — independent Math.sqrt", "engine": { "name": "square-root-reference", "precision_bits": 53, "independent_of_iut": true } }, { "class": "O2", "reference_scope": "numerical_behavior", "scope": "numerical_behavior", "label": "Same O2 module backs ≤2 ULP principal/imag comparison vs IUT", "engine": { "name": "square-root-reference", "precision_bits": 53, "independent_of_iut": true } } ], "notes": "mpmath 1.4.1 python backend (80 dps, round-to-nearest binary64; not gmpy2, not Node Math.sqrt). Non-negative named/seeded vectors live in the shared O3 table; principal imaginary, min-subnormal, and max-finite live in /developers/cvp/reproduce/sqrt-o3-extra.json. O2 remains the live identity oracle." }, "controls": { "CVP-PROV-01": { "result": "PASS", "applicability": "required", "notes": "Sources present on evidence" }, "CVP-MODEL-01": { "result": "PASS", "applicability": "required", "notes": "principal √x; imag for x < 0" }, "CVP-SCOPE-01": { "result": "PASS", "applicability": "required", "notes": "Declared partitions are positive-real, zero, negative-imaginary, tiny-subnormal, large-finite, invalid-domain — not a whole-domain claim. x < 0 is the published principal imaginary √|x| i, not invalid-domain. O3 ULP covers the tabulated non-negative vectors plus principal imaginary -9/-2, min-subnormal, and max-finite." }, "CVP-UNIT-01": { "result": "PASS", "applicability": "required", "notes": "dimensionless (unitless core)" }, "CVP-REF-01": { "result": "PASS", "applicability": "required", "notes": "O1 model + O3 mpmath sqrt table (shared non-negative vectors plus boundary extras) + O2 live identities" }, "CVP-GOLD-01": { "result": "PASS", "applicability": "required", "notes": "11/11 legacy golden; 7/7 oracle-backed numeric" }, "CVP-BND-01": { "result": "PASS", "applicability": "required", "notes": "7/7 boundary" }, "CVP-INV-01": { "result": "PASS", "applicability": "required", "notes": "7 invalid-domain cases" }, "CVP-NUM-01": { "result": "PASS", "applicability": "required", "notes": "CVP ≤2 ULP vs O3 tabulated vectors including principal imaginary, min-subnormal, and max-finite; legacy Evidence tol is not this policy" }, "CVP-COV-01": { "result": "PASS", "applicability": "required", "notes": "6/6 declared partitions (positive-real, zero, negative-imaginary, tiny-subnormal, large-finite, invalid-domain) · 11 golden / 7 boundary unique cases · 7 Evidence invalid-input (may overlap boundary)" }, "CVP-CONTRACT-01": { "result": "PASS", "applicability": "required", "notes": "1/1 contract checks" }, "CVP-DEP-01": { "result": "PASS", "applicability": "required", "notes": "engine square-root; Node binary64" }, "CVP-ART-01": { "result": "PASS", "applicability": "required", "notes": "release_integrity.status=verified · evidence_digest=CVP verification fingerprint v2 (canonical inputs, expected/actual/status, policy, versions; independent of generated_at) · evidence_bundle_sha256=legacy Evidence JSON bytes · production_sha256=bound production attestation report" }, "CVP-PROD-01": { "result": "PASS", "applicability": "required", "notes": "CURRENT · site report pass · local checks pass · attestation_id=00c818a77ba026c2d6aa3f7402680cd2dac2a40a816209600bc3c3fcd0b8921c · CURRENT · Public schema 1.0.3 matches · Semantic contract ✓ · Production attested · Public/cache ✓ · Origin ✓ · schema_const=1.0.3 · report output-const=pass · evidence-sha256=pass · semantic-contract=pass · capability-html-public-origin-agree=pass · cvp-manifest-public-origin-agree=pass · cvp-reproduce-manifest-agree=pass · calculator-html-cvp-projection=pass · evidence-html-cvp-projection=pass · attested_evidence_sha256=9424f31d3ca937ec4a453e41479201945df6495214f0a220ebb742e7fd1c3f20" }, "CVP-DIM-01": { "result": "SKIP", "applicability": "not_applicable", "notes": "Unitless core calculator — no physical dimension algebra" }, "CVP-PROP-01": { "result": "PASS", "applicability": "applicable", "notes": "4/4 property" }, "CVP-META-01": { "result": "PASS", "applicability": "applicable", "notes": "2/2 metamorphic" }, "CVP-ROUND-01": { "result": "PASS", "applicability": "applicable", "notes": "3/3 round-trips" }, "CVP-XCAL-01": { "result": "SKIP", "applicability": "not_applicable", "notes": "No related calculator in the same formula family / no related-identity peers declared — control not in obligation set" }, "CVP-IFACE-01": { "result": "PASS", "applicability": "applicable", "notes": "UI (SSR) · REST · MCP equivalent (MCP uses calc API handler). Success 4/4. Error-path engine·REST·MCP 3/3 (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. Integration: URL → SSR result → Live graph current point (5/5). Hydration/slider/history are URL-canonical contracts, not a live browser session. Live-browser hydration, slider, Copy JSON, and Overview/Focus are not Core CVP. They are covered by npm run test:math-graph-e2e (MATH_GRAPH_E2E_ONLY=square_root)." }, "CVP-ORACLE-01": { "result": "PASS", "applicability": "higher_assurance", "notes": "O3 21/21 tabulated vectors vs IUT · ≤2 ULP vs O3 applies to the published tabulated Square Root vectors, including non-negative named and seeded values, principal imaginary of -9 and -2, IEEE-754 min-subnormal, and max-finite. It is not a guarantee over the entire input domain." }, "CVP-EXP-01": { "result": "SKIP", "applicability": "optional", "notes": "expert_reviewed=false" } }, "tests": { "golden": { "passed": 7, "total": 7, "failed": 0, "case_ids": [ "g-sqrt-144", "g-sqrt-0", "g-sqrt-2", "g-sqrt-025", "g-sqrt-neg-9", "g-sqrt-subnormal", "g-sqrt-max-finite" ] }, "boundary": { "passed": 7, "total": 7, "failed": 0, "case_ids": [ "empty-x", "x-object", "x-array", "x-boolean", "x-infinity", "x-nan", "x-abc" ] }, "invalid": { "passed": 7, "total": 7, "failed": 0, "case_ids": [ "empty-x", "x-object", "x-array", "x-boolean", "x-infinity", "x-nan", "x-abc" ] }, "property": { "passed": 4, "total": 4, "failed": 0, "case_ids": [ "prop-nonneg-144", "prop-nonneg-2", "prop-zero", "prop-neg-imag" ], "definition_ids": [ "principal-nonnegative", "sqrt-zero", "principal-imaginary" ] }, "round_trip": { "passed": 3, "total": 3, "failed": 0, "case_ids": [ "rt-144", "rt-4", "rt-025" ] }, "metamorphic": { "passed": 2, "total": 2, "failed": 0, "case_ids": [ "meta-scale-4", "meta-scale-9" ], "definition_ids": [ "sqrt-square-factor" ] }, "contract": { "passed": 1, "total": 1, "failed": 0 }, "cross_interface": { "passed": 7, "total": 7, "failed": 0, "case_ids": [ "iface-sqrt-144", "iface-sqrt-0", "iface-sqrt-2", "iface-sqrt-neg", "iface-err-abc", "iface-err-nan", "iface-err-inf" ] }, "ui_integration": { "passed": 5, "total": 5, "failed": 0, "case_ids": [ "ui-sqrt-4", "ui-sqrt-1", "ui-sqrt-0", "ui-sqrt-144", "ui-sqrt-2" ] }, "o3": { "passed": 21, "total": 21, "failed": 0, "case_ids": [ "o3-sqrt-0p0", "o3-sqrt-1p0", "o3-sqrt-4p0", "o3-sqrt-9p0", "o3-sqrt-144p0", "o3-sqrt-2p0", "o3-sqrt-0p25", "o3-sqrt-1e-08", "o3-sqrt-100000000p0", "o3-sqrt-rand-00", "o3-sqrt-rand-01", "o3-sqrt-rand-02", "o3-sqrt-rand-03", "o3-sqrt-rand-04", "o3-sqrt-rand-05", "o3-sqrt-rand-06", "o3-sqrt-rand-07", "o3-sqrt-neg-9", "o3-sqrt-neg-2", "o3-sqrt-min-subnormal", "o3-sqrt-max-finite" ], "generator_id": "math-mpmath-o3", "seed": "20260907", "table_sha256": "efdad939a92a67df1f3995db36c52bb87f428a59fc73568f789c02540f4372ee", "max_error_ulp": 0, "reproduce": "python3 generate-math-o3.py", "table_url": "/developers/cvp/reproduce/math-o3-tables.json", "generator_url": "/developers/cvp/reproduce/generate-math-o3.py", "checker_url": "/developers/cvp/reproduce/check-math-o3-rest.py", "claim_scope": "≤2 ULP vs O3 applies to the published tabulated Square Root vectors, including non-negative named and seeded values, principal imaginary of -9 and -2, IEEE-754 min-subnormal, and max-finite. It is not a guarantee over the entire input domain.", "reproduce_url": "https://www.calculatorx.com/evidence/math.square_root/reproduce" } }, "coverage": { "partitions": [ { "id": "positive-real", "description": "x > 0 finite principal real √x, excluding tiny/subnormal and large-finite numerical boundaries", "exercised": true, "case_count": 31 }, { "id": "zero", "description": "√0 = 0", "exercised": true, "case_count": 4 }, { "id": "negative-imaginary", "description": "x < 0 principal imaginary √|x| i — published contract, not invalid-domain", "exercised": true, "case_count": 6 }, { "id": "tiny-subnormal", "description": "Tiny positive including subnormals: 0 < x < 1e-6 (O3 includes 1e-8 and IEEE-754 min-subnormal)", "exercised": true, "case_count": 4 }, { "id": "large-finite", "description": "Large finite radicand x ≥ 1e100 (O3 includes max-finite; Evidence also has 1e308)", "exercised": true, "case_count": 3 }, { "id": "invalid-domain", "description": "MISSING_REQUIRED_INPUT / INVALID_NUMBER — not the negative imaginary branch", "exercised": true, "case_count": 7 } ] }, "numerical": { "representation": "IEEE-754 binary64 Math.sqrt", "tolerance": { "type": "ulp", "value": 2, "rationale": "Independent Math.sqrt vs IUT; ≤2 ULP on principal/imag. Declared a priori.", "declared_before_evaluation": true }, "legacy_regression_notes": "Legacy Evidence JSON may record case-level tol (e.g. 1e-8). That is a regression epsilon, not the CVP ≤2 ULP acceptance policy. CVP records list reference, actual, error_ulp, and the a-priori ULP threshold.", "claim_scope": "≤2 ULP vs O3 applies to the published tabulated Square Root vectors, including non-negative named and seeded values, principal imaginary of -9 and -2, IEEE-754 min-subnormal, and max-finite. It is not a guarantee over the entire input domain.", "max_error_observed": 0, "records": [ { "id": "g-sqrt-144", "reference": { "real": 12, "imag": 0, "principal": 12 }, "actual": { "real": 12, "imag": 0, "principal": 12 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "g-sqrt-0", "reference": { "real": 0, "imag": 0, "principal": 0 }, "actual": { "real": 0, "imag": 0, "principal": 0 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "g-sqrt-2", "reference": { "real": 1.4142135623730951, "imag": 0, "principal": 1.4142135623730951 }, "actual": { "real": 1.4142135623730951, "imag": 0, "principal": 1.4142135623730951 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "g-sqrt-025", "reference": { "real": 0.5, "imag": 0, "principal": 0.5 }, "actual": { "real": 0.5, "imag": 0, "principal": 0.5 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "g-sqrt-neg-9", "reference": { "real": 0, "imag": 3, "principal": null }, "actual": { "real": 0, "imag": 3, "principal": null }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "g-sqrt-subnormal", "reference": { "real": 2.2227587494850775e-162, "imag": 0, "principal": 2.2227587494850775e-162 }, "actual": { "real": 2.2227587494850775e-162, "imag": 0, "principal": 2.2227587494850775e-162 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "g-sqrt-max-finite", "reference": { "real": 1.3407807929942596e+154, "imag": 0, "principal": 1.3407807929942596e+154 }, "actual": { "real": 1.3407807929942596e+154, "imag": 0, "principal": 1.3407807929942596e+154 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-0p0", "reference": { "real": 0, "imag": 0, "principal": 0 }, "actual": { "real": 0, "imag": 0, "principal": 0 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-1p0", "reference": { "real": 1, "imag": 0, "principal": 1 }, "actual": { "real": 1, "imag": 0, "principal": 1 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-4p0", "reference": { "real": 2, "imag": 0, "principal": 2 }, "actual": { "real": 2, "imag": 0, "principal": 2 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-9p0", "reference": { "real": 3, "imag": 0, "principal": 3 }, "actual": { "real": 3, "imag": 0, "principal": 3 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-144p0", "reference": { "real": 12, "imag": 0, "principal": 12 }, "actual": { "real": 12, "imag": 0, "principal": 12 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-2p0", "reference": { "real": 1.4142135623730951, "imag": 0, "principal": 1.4142135623730951 }, "actual": { "real": 1.4142135623730951, "imag": 0, "principal": 1.4142135623730951 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-0p25", "reference": { "real": 0.5, "imag": 0, "principal": 0.5 }, "actual": { "real": 0.5, "imag": 0, "principal": 0.5 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-1e-08", "reference": { "real": 0.0001, "imag": 0, "principal": 0.0001 }, "actual": { "real": 0.0001, "imag": 0, "principal": 0.0001 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-100000000p0", "reference": { "real": 10000, "imag": 0, "principal": 10000 }, "actual": { "real": 10000, "imag": 0, "principal": 10000 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-00", "reference": { "real": 63.89661885124514, "imag": 0, "principal": 63.89661885124514 }, "actual": { "real": 63.89661885124514, "imag": 0, "principal": 63.89661885124514 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-01", "reference": { "real": 90.80589953006024, "imag": 0, "principal": 90.80589953006024 }, "actual": { "real": 90.80589953006024, "imag": 0, "principal": 90.80589953006024 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-02", "reference": { "real": 71.49284080107454, "imag": 0, "principal": 71.49284080107454 }, "actual": { "real": 71.49284080107454, "imag": 0, "principal": 71.49284080107454 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-03", "reference": { "real": 79.3351368397675, "imag": 0, "principal": 79.3351368397675 }, "actual": { "real": 79.3351368397675, "imag": 0, "principal": 79.3351368397675 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-04", "reference": { "real": 95.5827122881939, "imag": 0, "principal": 95.5827122881939 }, "actual": { "real": 95.5827122881939, "imag": 0, "principal": 95.5827122881939 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-05", "reference": { "real": 64.21635224673305, "imag": 0, "principal": 64.21635224673305 }, "actual": { "real": 64.21635224673305, "imag": 0, "principal": 64.21635224673305 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-06", "reference": { "real": 22.60229091627564, "imag": 0, "principal": 22.60229091627564 }, "actual": { "real": 22.60229091627564, "imag": 0, "principal": 22.60229091627564 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-rand-07", "reference": { "real": 86.71220646529953, "imag": 0, "principal": 86.71220646529953 }, "actual": { "real": 86.71220646529953, "imag": 0, "principal": 86.71220646529953 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-neg-9", "reference": { "real": 0, "imag": 3, "principal": null }, "actual": { "real": 0, "imag": 3, "principal": null }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-neg-2", "reference": { "real": 0, "imag": 1.4142135623730951, "principal": null }, "actual": { "real": 0, "imag": 1.4142135623730951, "principal": null }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-min-subnormal", "reference": { "real": 2.2227587494850775e-162, "imag": 0, "principal": 2.2227587494850775e-162 }, "actual": { "real": 2.2227587494850775e-162, "imag": 0, "principal": 2.2227587494850775e-162 }, "error_ulp": 0, "threshold_ulp": 2 }, { "id": "o3-sqrt-max-finite", "reference": { "real": 1.3407807929942596e+154, "imag": 0, "principal": 1.3407807929942596e+154 }, "actual": { "real": 1.3407807929942596e+154, "imag": 0, "principal": 1.3407807929942596e+154 }, "error_ulp": 0, "threshold_ulp": 2 } ] }, "interfaces": { "compared": [ "ui-ssr", "rest", "mcp", "ui-url-result-graph" ], "result": "PASS", "notes": "UI (SSR) · REST · MCP equivalent (MCP uses calc API handler). Success 4/4. Error-path engine·REST·MCP 3/3 (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. Integration: URL → SSR result → Live graph current point (5/5). Hydration/slider/history are URL-canonical contracts, not a live browser session. Live-browser hydration, slider, Copy JSON, and Overview/Focus are not Core CVP. They are covered by npm run test:math-graph-e2e (MATH_GRAPH_E2E_ONLY=square_root)." }, "artifacts": { "evidence_bundle_sha256": "bacb59a291fff5548dda6b85b61265df55350660d1fc8b85cd15c1a9290cb024", "evidence_digest": "aa716638904c2f4318eb2a1f94a014b2c0d47bd5e5289bd814fb6d7c0fefd355", "production_sha256": "9424f31d3ca937ec4a453e41479201945df6495214f0a220ebb742e7fd1c3f20", "attested_catalog_sha256": "e03ef81b30568018b171fd1fc4757c2abe9df7220d9ff35bbaf08038d7630cdb", "production_checks": [ { "id": "math.square_root:output-const", "status": "pass", "detail": "output const 1.0.3 vs capability 1.0.3", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" }, { "id": "math.square_root:evidence-sha256", "status": "pass", "detail": "2f7726f6fbf0", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" }, { "id": "math.square_root:semantic-contract", "status": "pass", "detail": "18/18", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" }, { "id": "math.square_root:capability-html-public-origin-agree", "status": "pass", "detail": "public 1.0.3 vs origin 1.0.3", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" }, { "id": "math.square_root:cvp-manifest-public-origin-agree", "status": "pass", "detail": "math.square_root/1.0.3/2026-09-09.o3-boundary/core/aa716638904c", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z", "projection_compared": false, "observed_live_projection_at_attestation": "VERIFIED" }, { "id": "math.square_root:cvp-reproduce-manifest-agree", "status": "pass", "detail": "2026-09-09.o3-boundary · efdad939a92a", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" }, { "id": "math.square_root:calculator-html-cvp-projection", "status": "pass", "detail": "matches Manifest", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" }, { "id": "math.square_root:evidence-html-cvp-projection", "status": "pass", "detail": "matches Manifest", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-10T02:52:51.379Z" } ] }, "dependencies": [ { "name": "square-root-engine", "version": "1.0.3" }, { "name": "square-root-reference-oracle", "version": "1.0.0" }, { "name": "square-root-o3-mpmath-table", "version": "math-mpmath-o3" }, { "name": "node", "version": "20.19.2" } ], "attestation": { "status": "CURRENT", "href": "/.well-known/calculatorx-production-attestation.json", "id": "00c818a77ba026c2d6aa3f7402680cd2dac2a40a816209600bc3c3fcd0b8921c", "attested_at": "2026-09-10T02:52:51.379Z" }, "domain_review": { "status": "ABSENT", "spec_version": "1.0.3" }, "timestamps": { "verified_at": "2026-09-10T03:41:49.619Z", "generated_at": "2026-09-10T03:41:49.619Z" }, "links": { "legacy_evidence": "https://www.calculatorx.com/evidence/math.square_root/1.0.3.json", "evidence_page": "https://www.calculatorx.com/evidence/math.square_root/1.0.3", "calculator": "https://www.calculatorx.com/calc/math/square-root", "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/math.square_root/1.0.3.cvp.json", "manifest_immutable": "https://www.calculatorx.com/evidence/math.square_root/1.0.3/2026-09-09.o3-boundary.cvp.json", "reproduce": "https://www.calculatorx.com/evidence/math.square_root/reproduce", "o3_table": "https://www.calculatorx.com/developers/cvp/reproduce/math-o3-tables.json", "o3_generator": "https://www.calculatorx.com/developers/cvp/reproduce/generate-math-o3.py", "o3_checker": "https://www.calculatorx.com/developers/cvp/reproduce/check-math-o3-rest.py" } }