{ "protocol": { "name": "CVP", "version": "1.0.0-proposed" }, "document_status": "proposed", "calculator": { "id": "buck-ripple", "version": "1.1.0", "title": "Buck Converter Ripple Calculator", "formula_family": "buck-ccm-ripple", "capability_id": "electrical.buck.ripple", "verification_revision": "2026-09-11.ptp-ccm-c-optional" }, "profile": "engineering", "status": "VERIFIED", "verification_status": "VERIFIED", "production_freshness": "CURRENT", "overall_trust": "VERIFIED", "runner": { "name": "cvp-runner", "version": "1.0.0" }, "environment": { "runtime": "node", "runtime_version": "22.23.2", "numeric_model": "IEEE-754 binary64", "os": "linux" }, "suite": { "id": "buck-ripple", "version": "1.1.0", "uri": "https://www.calculatorx.com/evidence/electrical.buck.ripple/1.1.0.json", "verification_revision": "2026-09-11.ptp-ccm-c-optional" }, "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-IFACE-01" ], "provenance": { "mode": "direct", "sources": [ { "label": "Texas Instruments SLVA477B — Basic Calculation of a Buck Converter's Power Stage", "kind": "other", "reference": "Inductor ripple current; output capacitor C_OUT = ΔI_L/(8 f ΔV)", "url": "https://www.ti.com/lit/an/slva477b/slva477b.pdf" }, { "label": "Analog Devices AN-1144 — Measuring Output Ripple and Switching Transients in Switching Regulators", "kind": "other", "reference": "Peak-to-peak ripple, triangular capacitor current, ESR contribution", "url": "https://www.analog.com/en/resources/app-notes/an-1144.html" }, { "label": "Erickson / Maksimović — Fundamentals of Power Electronics", "kind": "other", "reference": "CCM buck inductor current ripple and output capacitor ΔV ≈ ΔI/(8fC)" } ] }, "reference": { "items": [ { "class": "O1", "reference_scope": "model", "scope": "model", "label": "Ideal CCM buck ripple (peak-to-peak; ESR=0 for ΔV_C)" }, { "class": "O2", "reference_scope": "expected_values", "scope": "expected_values", "label": "Separate-module buck-ripple oracle — same V8 binary64 as IUT", "engine": { "name": "buck-ripple-reference", "precision_bits": 53, "independent_of_iut": true } }, { "class": "O2", "reference_scope": "numerical_behavior", "scope": "numerical_behavior", "label": "Same O2 module backs ≤2 ULP ΔI_L,pp / ΔV_C,pp comparison vs IUT", "engine": { "name": "buck-ripple-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": "Assumed CCM. ΔI_L,pp=Vout(1−D)/(f L) is peak-to-peak inductor current. Optional ΔV_C,pp≈ΔI_L,pp/(8fC) is capacitor-only (ESR=0). I_ccm_boundary=ΔI_L,pp/2." }, "CVP-SCOPE-01": { "result": "PASS", "applicability": "required", "notes": "Ideal CCM assumed, not measured. No Iout, so CCM/DCM is not certified. ESR, DCM, and current-mode dynamics are out of scope." }, "CVP-UNIT-01": { "result": "PASS", "applicability": "required", "notes": "V, Hz, H, F → A, V (peak-to-peak)" }, "CVP-REF-01": { "result": "PASS", "applicability": "required", "notes": "O1 model + O2 expected_values + O2 numerical_behavior" }, "CVP-GOLD-01": { "result": "PASS", "applicability": "required", "notes": "1/1 legacy golden; 2/2 oracle-backed numeric" }, "CVP-BND-01": { "result": "PASS", "applicability": "required", "notes": "10/10 numeric-edge Evidence + 2/2 near-singularity numeric; illegal enum/system is Invalid only" }, "CVP-INV-01": { "result": "PASS", "applicability": "required", "notes": "8 Evidence illegal-input + 7/7 oracle-backed error-code (exact_error_match, not ULP)" }, "CVP-NUM-01": { "result": "PASS", "applicability": "required", "notes": "max_error_observed_ulp=0; policy declared a priori" }, "CVP-COV-01": { "result": "PASS", "applicability": "required", "notes": "3/3 declared partitions (ccm-with-c, ccm-without-c, invalid-domain) · 1 legacy golden / 12 CVP boundary unique cases · 8 Evidence invalid-input (may overlap boundary)" }, "CVP-CONTRACT-01": { "result": "PASS", "applicability": "required", "notes": "4/4 CVP contract" }, "CVP-DEP-01": { "result": "PASS", "applicability": "required", "notes": "engine buck-ripple; 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 @ 2026-09-11T14:24:21.735Z · live site-wide report stale @ 2026-09-11T14:24:23.593Z (1 other capabilities) · local checks pass · attestation_id=e2c147adc051524e973b72cf54d70590a89eadb6caab72cd70c1129569a082cf · This calculator CURRENT · Bound attestation PASS @ 2026-09-11T14:24:21.735Z · Live site report STALE (1 capability; 155 remain CURRENT) @ 2026-09-11T14:24:23.593Z · Public schema 1.1.0 matches · Semantic contract ✓ · Production attested · Public/cache ✓ · Origin ✓ · schema_const=1.1.0 · 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 · calculator-html-cvp-projection=pass · evidence-html-cvp-projection=pass · attested_evidence_sha256=cae9cd769aac2c50ae6c057635682fc0597c7d3892ecdf19d754881b78c1df79 · verified_at=2026-09-11T14:08:34.579Z · evidence_attested_at=2026-09-11T14:08:34.579Z · last_confirmed_current_at=2026-09-11T14:24:21.735Z · rendered_at=2026-09-11T14:24:23.649Z · binds=cvp_core_sha256", "check_result": "PASS", "production_state": "CURRENT", "binding_current": true }, "CVP-DIM-01": { "result": "PASS", "applicability": "applicable", "notes": "Peak-to-peak inductor current and capacitor voltage ripple" }, "CVP-PROP-01": { "result": "PASS", "applicability": "applicable", "notes": "4/4 property" }, "CVP-META-01": { "result": "PASS", "applicability": "applicable", "notes": "4/4 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": "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). ui-ssr is query-result HTML, not a live browser session." }, "CVP-ORACLE-01": { "result": "SKIP", "applicability": "higher_assurance", "notes": "O2 present; O3 not required this wave" }, "CVP-EXP-01": { "result": "PASS", "applicability": "optional", "notes": "expert_reviewed=true" } }, "tests": { "golden": { "passed": 2, "total": 2, "failed": 0, "case_ids": [ "g-ccm-with-c", "g-ccm-no-c" ] }, "boundary": { "passed": 12, "total": 12, "failed": 0, "case_ids": [ "bad-ratio", "missing", "boundary-buck", "boundary-buck-no-c", "boundary-buck-vout-eq", "boundary-buck-vin-zero", "boundary-buck-vout-zero", "boundary-buck-f-zero", "boundary-buck-l-zero", "boundary-buck-c-zero", "bnd-vout-just-below-vin", "bnd-tiny-positive" ] }, "invalid": { "passed": 15, "total": 15, "failed": 0, "case_ids": [ "bad-ratio", "missing", "boundary-buck-vout-eq", "boundary-buck-vin-zero", "boundary-buck-vout-zero", "boundary-buck-f-zero", "boundary-buck-l-zero", "boundary-buck-c-zero", "inv-vin-zero", "inv-vout-zero", "inv-f-zero", "inv-l-zero", "inv-c-zero", "inv-vout-eq-vin", "inv-missing" ], "comparison": "exact_error_match", "records": [ { "id": "inv-vin-zero", "comparison": "exact_error_match", "expected": { "code": "VALUE_MUST_BE_POSITIVE" }, "actual": { "code": "VALUE_MUST_BE_POSITIVE" }, "match": true }, { "id": "inv-vout-zero", "comparison": "exact_error_match", "expected": { "code": "VALUE_MUST_BE_POSITIVE" }, "actual": { "code": "VALUE_MUST_BE_POSITIVE" }, "match": true }, { "id": "inv-f-zero", "comparison": "exact_error_match", "expected": { "code": "VALUE_MUST_BE_POSITIVE" }, "actual": { "code": "VALUE_MUST_BE_POSITIVE" }, "match": true }, { "id": "inv-l-zero", "comparison": "exact_error_match", "expected": { "code": "VALUE_MUST_BE_POSITIVE" }, "actual": { "code": "VALUE_MUST_BE_POSITIVE" }, "match": true }, { "id": "inv-c-zero", "comparison": "exact_error_match", "expected": { "code": "VALUE_MUST_BE_POSITIVE" }, "actual": { "code": "VALUE_MUST_BE_POSITIVE" }, "match": true }, { "id": "inv-vout-eq-vin", "comparison": "exact_error_match", "expected": { "code": "VALUE_OUT_OF_RANGE" }, "actual": { "code": "VALUE_OUT_OF_RANGE" }, "match": true }, { "id": "inv-missing", "comparison": "exact_error_match", "expected": { "code": "MISSING_REQUIRED_INPUT" }, "actual": { "code": "MISSING_REQUIRED_INPUT" }, "match": true } ] }, "property": { "passed": 4, "total": 4, "failed": 0, "case_ids": [ "prop-di-pp", "prop-ccm-boundary-half-di", "prop-no-c-omits-dv", "prop-dv-ratio" ], "definition_ids": [ "known-ccm-di", "ccm-boundary-half-ripple", "optional-c-omits-dv", "dv-over-vout" ] }, "round_trip": { "passed": 0, "total": 0, "failed": 0, "case_ids": [] }, "metamorphic": { "passed": 4, "total": 4, "failed": 0, "case_ids": [ "meta-double-f-di", "meta-double-f-dv", "meta-double-l-di", "meta-double-c-dv" ], "definition_ids": [ "di-inverse-f", "dv-inverse-f-squared", "di-inverse-l", "dv-inverse-c" ] }, "contract": { "passed": 4, "total": 4, "failed": 0 }, "cross_interface": { "passed": 2, "total": 2, "failed": 0, "case_ids": [ "iface-ccm-with-c", "iface-ccm-no-c" ] } }, "coverage": { "partitions": [ { "id": "ccm-with-c", "description": "Assumed CCM with Cout — ΔI_L,pp and ΔV_C,pp", "exercised": true, "case_count": 12 }, { "id": "ccm-without-c", "description": "Assumed CCM without Cout — ΔI_L,pp only", "exercised": true, "case_count": 3 }, { "id": "invalid-domain", "description": "Invalid inputs", "exercised": true, "case_count": 15 } ] }, "numerical": { "representation": "IEEE-754 binary64", "tolerance": { "type": "ulp", "value": 2, "rationale": "CCM buck ripple algebra; ≤2 ULP vs separate-module O2 (same V8). Declared a priori. Compares ΔI_L,pp, I_ccm_boundary, and ΔV_C,pp when Cout is present.", "declared_before_evaluation": true }, "max_error_observed": 0, "records": [ { "id": "g-ccm-with-c", "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "error_ulp": 0, "threshold_ulp": 2, "suite": "golden" }, { "id": "g-ccm-no-c", "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333 }, "error_ulp": 0, "threshold_ulp": 2, "suite": "golden" }, { "id": "bnd-vout-just-below-vin", "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 11.999, "f_Hz": 100000, "L_H": 0.00001, "D": 0.9999166666666667, "dI_L_A": 0.0009999166666665566, "I_ccm_boundary_A": 0.0004999583333332783, "C_F": 0.0001, "dV_out_V": 0.000012498958333331958, "dV_over_Vout": 0.000001041666666666552 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 11.999, "f_Hz": 100000, "L_H": 0.00001, "D": 0.9999166666666667, "dI_L_A": 0.0009999166666665566, "I_ccm_boundary_A": 0.0004999583333332783, "C_F": 0.0001, "dV_out_V": 0.000012498958333331958, "dV_over_Vout": 0.000001041666666666552 }, "error_ulp": 0, "threshold_ulp": 2, "suite": "boundary" }, { "id": "bnd-tiny-positive", "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 0.000001, "L_H": 1e-9, "D": 0.4166666666666667, "dI_L_A": 2916666666666666, "I_ccm_boundary_A": 1458333333333333, "C_F": 1e-9, "dV_out_V": 3.645833333333332e+29, "dV_over_Vout": 7.291666666666664e+28 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 0.000001, "L_H": 1e-9, "D": 0.4166666666666667, "dI_L_A": 2916666666666666, "I_ccm_boundary_A": 1458333333333333, "C_F": 1e-9, "dV_out_V": 3.645833333333332e+29, "dV_over_Vout": 7.291666666666664e+28 }, "error_ulp": 0, "threshold_ulp": 2, "suite": "boundary" }, { "id": "meta-double-f-di", "reference": 0.5, "actual": 0.5, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "error_ulp": 0 }, "follow": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 200000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 1.458333333333333, "I_ccm_boundary_A": 0.7291666666666665, "C_F": 0.0001, "dV_out_V": 0.009114583333333332, "dV_over_Vout": 0.0018229166666666665 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 200000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 1.458333333333333, "I_ccm_boundary_A": 0.7291666666666665, "C_F": 0.0001, "dV_out_V": 0.009114583333333332, "dV_over_Vout": 0.0018229166666666665 }, "error_ulp": 0 }, "relation": { "reference": 0.5, "actual": 0.5, "error_ulp": 0 } } }, { "id": "meta-double-f-dv", "reference": 0.25, "actual": 0.25, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "error_ulp": 0 }, "follow": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 200000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 1.458333333333333, "I_ccm_boundary_A": 0.7291666666666665, "C_F": 0.0001, "dV_out_V": 0.009114583333333332, "dV_over_Vout": 0.0018229166666666665 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 200000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 1.458333333333333, "I_ccm_boundary_A": 0.7291666666666665, "C_F": 0.0001, "dV_out_V": 0.009114583333333332, "dV_over_Vout": 0.0018229166666666665 }, "error_ulp": 0 }, "relation": { "reference": 0.25, "actual": 0.25, "error_ulp": 0 } } }, { "id": "meta-double-l-di", "reference": 0.5, "actual": 0.5, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "error_ulp": 0 }, "follow": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00002, "D": 0.4166666666666667, "dI_L_A": 1.458333333333333, "I_ccm_boundary_A": 0.7291666666666665, "C_F": 0.0001, "dV_out_V": 0.018229166666666664, "dV_over_Vout": 0.003645833333333333 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00002, "D": 0.4166666666666667, "dI_L_A": 1.458333333333333, "I_ccm_boundary_A": 0.7291666666666665, "C_F": 0.0001, "dV_out_V": 0.018229166666666664, "dV_over_Vout": 0.003645833333333333 }, "error_ulp": 0 }, "relation": { "reference": 0.5, "actual": 0.5, "error_ulp": 0 } } }, { "id": "meta-double-c-dv", "reference": 0.5, "actual": 0.5, "error_ulp": 0, "threshold_ulp": 2, "suite": "metamorphic", "hops": { "base": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0001, "dV_out_V": 0.03645833333333333, "dV_over_Vout": 0.007291666666666666 }, "error_ulp": 0 }, "follow": { "reference": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0002, "dV_out_V": 0.018229166666666664, "dV_over_Vout": 0.003645833333333333 }, "actual": { "assumption": "ccm", "Vin_V": 12, "Vout_V": 5, "f_Hz": 100000, "L_H": 0.00001, "D": 0.4166666666666667, "dI_L_A": 2.916666666666666, "I_ccm_boundary_A": 1.458333333333333, "C_F": 0.0002, "dV_out_V": 0.018229166666666664, "dV_over_Vout": 0.003645833333333333 }, "error_ulp": 0 }, "relation": { "reference": 0.5, "actual": 0.5, "error_ulp": 0 } } } ] }, "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." }, "artifacts": { "evidence_bundle_sha256": "510b91c7892ccc4c4a8dc32f37147377f913202caedd90a5de1892826fc8905f", "evidence_digest": "332ecf11791945b4d3e6347f0ab115118d6bc3722180da163990b297c300b54e", "production_sha256": "cae9cd769aac2c50ae6c057635682fc0597c7d3892ecdf19d754881b78c1df79", "attested_catalog_sha256": "b4b7c047ce8ff1f1969eb4427d172fa9041bb6389928c1c15bd9ec23b821b1e2", "production_checks": [ { "id": "electrical.buck.ripple:output-const", "status": "pass", "detail": "output const 1.1.0 vs capability 1.1.0", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:evidence-sha256", "status": "pass", "detail": "99cd5289e725", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:semantic-contract", "status": "pass", "detail": "15/15", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:capability-html-public-origin-agree", "status": "pass", "detail": "public 1.1.0 vs origin 1.1.0", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:cvp-manifest-public-origin-agree", "status": "pass", "detail": "electrical.buck.ripple/1.1.0/2026-09-11.ptp-ccm-c-optional/engineering/332ecf117919", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z", "projection_compared": false }, { "id": "electrical.buck.ripple:cvp-latest-alias-agrees", "status": "pass", "detail": "electrical.buck.ripple/1.1.0/2026-09-11.ptp-ccm-c-optional/engineering/332ecf117919", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z", "projection_compared": false }, { "id": "electrical.buck.ripple:cvp-immutable-manifest-fetch", "status": "pass", "detail": "public=200 origin=200", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:cvp-immutable-manifest-sha256", "status": "pass", "detail": "332ecf117919", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:cvp-latest-alias-matches-immutable", "status": "pass", "detail": "electrical.buck.ripple/1.1.0/2026-09-11.ptp-ccm-c-optional/engineering/332ecf117919", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z", "projection_compared": false }, { "id": "electrical.buck.ripple:calculator-html-cvp-projection", "status": "pass", "detail": "matches Trust display", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" }, { "id": "electrical.buck.ripple:evidence-html-cvp-projection", "status": "pass", "detail": "matches Trust display", "scope": "last_attestation_snapshot", "current": true, "attestation_binding_current": true, "attested_at": "2026-09-11T14:08:34.579Z" } ], "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": "332ecf11791945b4d3e6347f0ab115118d6bc3722180da163990b297c300b54e", "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": "332ecf11791945b4d3e6347f0ab115118d6bc3722180da163990b297c300b54e", "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": "99cd5289e725ceec05b990b3fbb3c06abaa6d42ad5024a180c49250e0f138d65", "note": "Published Evidence JSON core — Trust freshness / production bind subject" }, { "name": "evidence_catalog_digest", "field": "artifacts.attested_catalog_sha256", "digest_scope": "capability_catalog", "value": "b4b7c047ce8ff1f1969eb4427d172fa9041bb6389928c1c15bd9ec23b821b1e2", "note": "Capability catalog integrity; site-wide, not per-suite fingerprint" } ] }, "cvp_core_sha256": "332ecf11791945b4d3e6347f0ab115118d6bc3722180da163990b297c300b54e" }, "dependencies": [ { "name": "buck-ripple-engine", "version": "1.1.0" }, { "name": "buck-ripple-reference-oracle", "version": "1.0.0" }, { "name": "node", "version": "22.23.2" } ], "attestation": { "status": "CURRENT", "href": "/.well-known/calculatorx-production-attestation.json", "id": "e2c147adc051524e973b72cf54d70590a89eadb6caab72cd70c1129569a082cf", "attested_at": "2026-09-11T14:08:34.579Z", "last_confirmed_current_at": "2026-09-11T14:24:21.735Z", "site_attestation_current": false, "capability_attestation_current": true, "bound_snapshot_status": "pass", "live_report_status": "stale", "bound_attested_at": "2026-09-11T14:24:21.735Z", "live_updated_at": "2026-09-11T14:24:23.593Z", "site_stale_capability_count": 1, "evidence_attested_at": "2026-09-11T14:08:34.579Z" }, "domain_review": { "status": "PASS", "reviewer_role": "electrical-engineer", "spec_version": "1.1.0", "external_third_party": false, "independence": "internal" }, "timestamps": { "verified_at": "2026-09-11T14:08:34.579Z", "generated_at": "2026-09-11T14:08:34.579Z", "rendered_at": "2026-09-11T14:24:23.649Z", "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." }, "links": { "legacy_evidence": "https://www.calculatorx.com/evidence/electrical.buck.ripple/1.1.0.json", "evidence_page": "https://www.calculatorx.com/evidence/electrical.buck.ripple/1.1.0", "calculator": "https://www.calculatorx.com/calc/electric/buck-ripple", "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/electrical.buck.ripple/1.1.0.cvp.json", "manifest_immutable": "https://www.calculatorx.com/evidence/electrical.buck.ripple/1.1.0/2026-09-11.ptp-ccm-c-optional.cvp.json", "manifest_core": "https://www.calculatorx.com/evidence/electrical.buck.ripple/1.1.0/2026-09-11.ptp-ccm-c-optional.332ecf117919.cvp.json" } }