Public evidence
Machine-checked verification for calculation version 1.0.0 · tier engine_tested
CVP status
CVP VERIFIED · CVP protocol 1.0.0-proposed · Engineering assurance · Simply supported uniform load midspan δ = 5 w L⁴/(384 E I); + O3 mpmath tabulated δ.
O3 tabulated vectors only.
Legacy regression suite: 4/4 calculation tests · Production surface contract 6/6
Three distinct suites: educational examples on the calculator page, this legacy regression count (4/4 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 2026-09-27.o2-o3. Calculation version 1.0.0. CVP 1.0.0-proposed. 4/4 golden · 2/2 CVP boundary · 4/4 invalid · 1/1 property · 1/1 metamorphic · 8/8 O3 · 2/2 cross-interface · 6/6 CVP contract. digest 388b85997d71. O2: delta vs a separate-module identity (≤2 ULP). Not a cantilever, not a concentrated load, and not an intermediate station. ≤2 ULP vs O3 applies only to the published tabulated uniform-load-deflection vectors.
Fingerprint sha256:d39bda592e0f5c3f20f55312d0121e3d5775743ef99f25e49c97abbb3e1a55a4
Input schema sha256:9c292e2468d618f8b566c60e157842bcc45ccb9b43bee5d30e8bd84783addbf0 · Output schema sha256:6839f8384ab9ba6213800b60cb062a631c1b9f901f9d27afc1399f68c8b96da9 · 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.