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Public evidence

electrical.opamp.error_budget

Machine-checked verification for calculation version 1.0.0 · tier internally_reviewed

Open calculator API Capability Download JSON CVP Manifest MCP Review policy

CVP status

CVP VERIFIED · CVP protocol 1.0.0-proposed · Engineering assurance

DC error terms only — noise / AC excluded

Declared partition coverage
PASS · 3/3 declared partitions (rss, worst_case, invalid-domain)
Versions
Calculation 1.0.0 · CVP protocol 1.0.0-proposed · Evidence 2026-10-28.meta-metrics-v2
Verification revision
2026-10-28.meta-metrics-v2 · 2/2 property · digest f6c05360b7ca

Verification

Legacy regression suite: 7/7 calculation tests · Production surface contract 6/6

Three distinct suites: educational examples on the calculator page, this legacy regression count (7/7 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. Verification revision 2026-10-28.meta-metrics-v2. Calculation version 1.0.0. CVP 1.0.0-proposed. 2/2 golden · 2/2 CVP boundary · 2/2 invalid · 2/2 property · 2/2 metamorphic · 1/1 cross-interface · 6/6 CVP contract. digest f6c05360b7ca.

  • Golden (oracle-backed) 2 / 2
  • CVP boundary 2 / 2
  • Invalid input 2 / 2
  • Property 2 / 2
  • Metamorphic 2 / 2
  • Cross-interface 1 / 1
  • CVP contract 6 / 6
  • 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 output required declared PASS
  • schema valid input executes PASS
  • engine success output validates schema PASS
  • schema rejects incomplete input PASS
  • rest success payload validates schema PASS

Fingerprint sha256:2535dc4887b13952ecfc14da8c16d34ff32d8a2c2a1b100540a766d90364df6d

Input schema sha256:f07d31a9e7ba617b070e8a37fe1e663f50f63cc50eb89e7e0cee8b6fc672c684 · Output schema sha256:b1661dff540121de443cc46959bff65c134647b2183d65cb0807fbb78840d1f5 · 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-error-budget
Engine
opamp-error-budget
Engine build
2026-09-10
Evidence core
2026-09-06T13:18:51.762Z
Rendered
2026-11-10T05:18:41.749Z
Last reviewed
2026-08-08

Assumptions

  • Ideal closed-loop DC; matched simplified Ib path
  • Ib and Ios terms use Rf as the dominant resistance scale

Limitations

  • DC Vos/Ib/Ios only — not noise/CMRR/PSRR

Sources

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

Verification disclosure

Aggregate outcomes, scope and artifact commitments are public. Complete test inputs, expected values, execution records and oracle infrastructure are retained privately. This summary does not independently reproduce the full verification run.