Home Developers Evidence electrical.hpf

Public evidence

electrical.hpf

Machine-checked verification for calculation version 1.0.0 · tier expert_verified

Open calculator API Capability Download JSON CVP Manifest MCP Review policy

CVP: CVP VERIFIED · CVP protocol 1.0.0-proposed · Engineering assurance· First-order RC HPF only · Protocol · Schema · Production report

Declared partition coverage
PASS · 3/3 declared partitions (solve-rc, with-f, invalid-domain)
Versions
Calculation 1.0.0 · CVP protocol 1.0.0-proposed
CVP identity
2/2 property · digest de35114a5396

Verification

Legacy regression suite: 6/6 calculation tests · Production surface contract 3/3

Three distinct suites: educational examples on the calculator page, this legacy regression count (6/6 golden + boundary), and the CVP verification suite below. They are not the same number. Property, metamorphic, round-trip, O3, and interface statuses/checks are recorded in the CVP Manifest . SKIP (0/0) means that suite has no published vectors.

    This calculator CURRENT · Public schema 1.0.0 matches · Semantic contract ✓ · Production attested · Public/cache ✓ · Origin ✓

CVP verification suite

Protocol checks from the Evidence Manifest. Distinct from the legacy regression suite above. Calculation version 1.0.0. CVP 1.0.0-proposed. 2/2 golden · 2/2 CVP boundary · 2/2 invalid · 2/2 property · 1/1 cross-interface · 1/1 CVP contract. digest de35114a5396.

  • Golden (oracle-backed) 2 / 2
  • CVP boundary 2 / 2
  • Invalid input 2 / 2
  • Property 2 / 2
  • Cross-interface 1 / 1
  • CVP contract 1 / 1
  • Interfaces PASS · UI (SSR) / REST / MCP
  • Interface claim ui-ssr is query-result HTML, not a live browser session.
  • Assurance Engineering
  • release artifacts aligned PASS
  • schema valid input executes PASS
  • engine success output validates schema PASS

Fingerprint sha256:a1147cb998925eb7f4fc5f8905f6b8cb90b49e61a59ee9f2c8be79940949899f

Input schema sha256:7f2076d3e9b0806aab39a5f00d8f1d6c80877b69d0d2921501352c29870b1173 · Output schema sha256:03d8636997fb94a62fa5a13d0925ce01f3c37d297e5ac7f1eec76e092712925b · Build-time SHA-256 digests prove published artifacts agree with each other (release_integrity.scope=workspace). Production attestation GETs canonical URLs twice (public/cached view and origin), including Capability HTML, via npm run attest:production --write (published at /.well-known/calculatorx-production-attestation.json) and fails if the public Capability page advertises a different calculation_version. This is artifact consistency, not an independent immutable release log.

Build & scope

Engine identity and declared limitations.

Tool
hpf
Engine
hpf
Engine build
2026-09-10
Evidence core
2026-09-06T13:16:40.891Z
Rendered
2026-09-16T22:03:43.724Z
Last reviewed
2026-08-08

Limitations

  • First-order RC only

Sources

Standards and references supporting this tool specification. Methods are listed separately — they are algorithms, not bibliographic sources.

Legacy published checks

Golden and boundary cases from the legacy Evidence JSON. CVP property, metamorphic, round-trip, O3, and interface statuses/checks are recorded in the Manifest — including SKIP when a suite has no vectors.

IDKindStatusDetail
fcgoldenpassExpected fc=15.915494309189533 · Actual R=10000 · C=0.000001 · fc=15.915494309189533 · tau=0.01 · omega_c=100
3dbgoldenpassExpected H_dB=-3.0102999566398125 · Actual R=10000 · C=0.000001 · fc=15.915494309189533 · tau=0.01 · omega_c=100 · f=15.915494309189533 · H_lin=0.7071067811865475 · H_dB=-3.0102999566398125
needs-twoboundarypassExpected NEEDS_TWO_INPUTS · Actual NEEDS_TWO_INPUTS
zero-CboundarypassExpected VALUE_MUST_BE_POSITIVE · Actual VALUE_MUST_BE_POSITIVE
property-fcpropertypassfc
property-3dbpropertypass-3dB