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Public evidence

physics.kinematics.projectile

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· Flat ground; no drag; g default 9.80665 · Protocol · Schema · Production report

Declared partition coverage
PASS · 2/2 declared partitions (projectile, invalid-domain)
Versions
Calculation 1.0.0 · CVP protocol 1.0.0-proposed
CVP identity
1/1 property · digest 9d01bc7ae235

Verification

Legacy regression suite: 3/3 calculation tests · Production surface contract 4/4

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 1.0.0 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 9d01bc7ae235.

  • 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 sha256:6138dbca91556df0e9c0d554ac197b4e5f89afd3788bff9f2f8e7a3ce8699b83

Input schema sha256:76ffae500989c4a1509d318f374727a3d5c4cd521d224bc30b989c99c08a2ab8 · Output schema sha256:9c8e3458709c268391973a4cb6fcdc4dc5da13566d93af1621405f4413f8f232 · 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
projectile
Engine
projectile
Engine build
2026-09-10
Evidence core
2026-09-06T13:16:40.891Z
Rendered
2026-09-16T22:03:43.752Z
Last reviewed
2026-08-09

Limitations

  • No drag; flat ground; angle in (0,90)

Sources

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

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.

IDKindStatusDetail
rangegoldenpassExpected range_m=40.78864851911713 · Actual mode=full · v0_m_s=20 · angle_deg=45 · g_m_s2=9.80665 · range_m=40.78864851911713 · H_m=10.19716212977928 · T_s=2.8841929963302353 · vx_m_s=14.142135623730951
badboundarypassExpected VALUE_OUT_OF_RANGE · Actual VALUE_OUT_OF_RANGE
property-max-range-45propertypass45>30