Public evidence

physics.thermo.heat_transfer

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· Steady conduction / Newton cooling · Protocol · Schema · Production report

Declared partition coverage: PASS · 2/2 declared partitions (heat-transfer, invalid-domain)
Versions: Calculation 1.0.0 · CVP protocol 1.0.0-proposed
CVP identity: 1/1 property · digest 177d27704797

Verification

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

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.

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. 1/1 golden · 1/1 CVP boundary · 1/1 invalid · 1/1 property · 1/1 cross-interface · 1/1 CVP contract. digest 177d27704797.

Golden (oracle-backed) 1 / 1
CVP boundary 1 / 1
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:c10a4594a8ba6ce9762b8dc1639de605eb5081ba1260ec9542725b394944bc48

Input schema sha256:81ee181a350c9f4a45528d1cdde0fb6e5fb7a676d8356587fa0ed79c34b432c9 · Output schema sha256:646ec1159009b303b6870a6601577aa8fd986039fe5502c7ff1003cd035444d6 · 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: heat-transfer
Engine: heat-transfer
Engine build: 2026-09-10
Evidence core: 2026-09-06T13:16:40.891Z
Rendered: 2026-09-16T22:03:43.748Z
Last reviewed: 2026-08-09

Limitations

No radiation / CFD

Sources

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

Incropera heat transfer basics — Conduction / convection rates
Supports: Fourier / Newton cooling
ISO 80000-5 / heat transfer practice — Conduction and convection
Supports: Q = kAΔT/L; Q = hAΔT

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.

ID	Kind	Status	Detail
`cond`	golden	pass	Expected Q_W=100 · Actual mode=conduction · A_m2=1 · dT_C=10 · k_W_mK=1 · L_m=0.1 · Q_W=100
`conv`	golden	pass	Expected Q_W=100 · Actual mode=convection · A_m2=2 · dT_C=5 · h_W_m2K=10 · Q_W=100
`bad`	boundary	pass	Expected VALUE_MUST_BE_POSITIVE · Actual VALUE_MUST_BE_POSITIVE
`property-Q`	property	pass	100