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Public evidence

electrical.opamp_gain

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· Ideal infinite open-loop gain; no bandwidth limits · Protocol · Schema · Production report

Declared partition coverage
PASS · 3/3 declared partitions (noninverting, inverting, invalid-domain)
Versions
Calculation 1.0.0 · CVP protocol 1.0.0-proposed
CVP identity
1/1 property · digest ea412a169d5d

Verification

Legacy regression suite: 6/6 calculation tests · Production surface contract 4/4

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 · 1/1 invalid · 1/1 property · 1/1 cross-interface · 1/1 CVP contract. digest ea412a169d5d.

  • Golden (oracle-backed) 2 / 2
  • CVP boundary 2 / 2
  • Invalid input 1 / 1
  • Property 1 / 1
  • 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
  • schema rejects incomplete input PASS

Fingerprint sha256:51a3f5c4222ebb21e609d2588c943278430b9c1b035f17248dbd6cdc90d2b83b

Input schema sha256:7045f85f7da9d374f8aeb91a99e05846332835e6d663ce7560263e24a826e9ee · Output schema sha256:50cda2100910ffd822823d377eaf9ebbf7aac4f6c19836d06e5daa01a14454ab · 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
opamp-gain
Engine
opamp-gain
Engine build
2026-09-10
Evidence core
2026-09-06T13:16:40.891Z
Rendered
2026-09-16T22:03:43.726Z
Last reviewed
2026-08-08

Limitations

  • Ideal DC closed-loop 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
noninv-11goldenpassExpected G=11 · G_abs=11 · Actual mode=noninverting · Rf_ohm=10000 · Rg_ohm=1000 · G=11 · G_abs=11 · G_dB=20.8278537031645
inv-10goldenpassExpected G=-10 · G_abs=10 · Actual mode=inverting · Rf_ohm=10000 · Rg_ohm=1000 · G=-10 · G_abs=10 · G_dB=20
unity-noninvgoldenpassExpected G_abs=1 · Actual mode=noninverting · Rf_ohm=0.001 · Rg_ohm=1000000000 · G=1.000000000001 · G_abs=1.000000000001 · G_dB=8.686661818707667e-12
bad-RfboundarypassExpected VALUE_MUST_BE_POSITIVE · Actual VALUE_MUST_BE_POSITIVE
boundary-opamp-gainboundarypassExpected G=11 · Actual mode=noninverting · Rf_ohm=10000 · Rg_ohm=1000 · G=11 · G_abs=11 · G_dB=20.8278537031645
property-opamp-gainpropertypass11