Public evidence
Machine-checked verification for calculation version 1.0.0 · tier internally_reviewed
CVP status
CVP VERIFIED · CVP protocol 1.0.0-proposed · Engineering assurance · static DC LSB error-budget calculation
Static DC error budget in LSB, volts, and %FS. VERIFIED covers this calculation model, not measured converter performance, not dynamic SNR/jitter, and not datasheet TUE conventions that omit DNL.
Legacy regression suite: 11/11 calculation tests · Production surface contract 6/6
Three distinct suites: educational examples on the calculator page, this legacy regression count (11/11 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.
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. 6/6 golden · 5/5 CVP boundary · 5/5 invalid · 4/4 property · 6/6 metamorphic · 6/6 cross-interface · 6/6 CVP contract. digest 2a02032d97a8. Static DC LSB/V/%FS error-budget vs independent O2 (same V8, ≤2 ULP on err_LSB, LSB_V, err_V, err_pct_FS, codes). Not measured converter accuracy, not datasheet TUE that omits DNL, not O3.
Fingerprint sha256:7223200bb31f9c768edc3b8bcd4d3b69bd7d0eac85a0c46ddb757502c253dfab
Input schema sha256:10e5d92e79e9a2192a81c1c96a7383d4b4eebb8d7dfdb7daa0d93f348e2e321f · Output schema sha256:bc2424d86172e14ac883bcf4d96c07f9a749d435f507adbf95b431d27c6877dc · 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.
Engine identity and declared limitations.
Standards and references supporting this tool specification. Methods are listed separately — they are algorithms, not bibliographic sources.
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.