Public evidence

physics.kinematics.suvat

Machine-checked verification for calculation version 1.0.1 · tier expert_verified

Open calculator API Capability Download JSON CVP Manifest MCP Review policy

CVP status

Constant acceleration 1D

Declared partition coverage: PASS · 2/2 declared partitions (suvat, invalid-domain)
Versions: Calculation 1.0.1 · CVP protocol 1.0.0-proposed
CVP identity: 1/1 property · digest a303cf473d1e

Verification

Legacy regression suite: 3/3 calculation tests · Production surface contract 6/6

Three distinct suites: educational examples on the calculator page, this legacy regression count (3/3 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 1.0.1 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 1.0.1. CVP 1.0.0-proposed. 1/1 golden · 1/1 CVP boundary · 1/1 invalid · 1/1 property · 1/1 cross-interface · 6/6 CVP contract. digest a303cf473d1e.

Golden (oracle-backed) 1 / 1
CVP boundary 1 / 1
Invalid input 1 / 1
Property 1 / 1
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:f607519aac9aab7b0a77c08381bc05ad91d69ccb7b774e8dc708f701f1401f39

Input schema sha256:41c26132a9a589b0c1cbda9c76a3d29d96d1b172280f9d44847c67e63c9712a1 · Output schema sha256:bfbe58f698917293f8cedc59acfff4570d6b26991949575914dcd55dcc05db9c · 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: suvat
Engine: suvat
Engine build: 2026-09-21
Evidence core: 2026-09-21T15:54:02.547Z
Rendered: 2026-09-21T16:00:36.090Z
Last reviewed: 2026-08-09

Limitations

Constant a; 1D

Sources

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

Intro physics / NIST units — standard relations
Supports: engine formulas
ISO 80000-3 — Space and time — Kinematics
Supports: SUVAT equations under constant a

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
`v`	golden	pass	Expected v_m_s=6 · Actual mode=v · u_m_s=0 · a_m_s2=2 · t_s=3 · v_m_s=6
`bad`	boundary	pass	Expected VALUE_MUST_BE_POSITIVE · Actual VALUE_MUST_BE_POSITIVE
`property-suvat-s`	property	pass	16