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Public evidence

chemistry.mole.amount

Machine-checked verification for calculation version 1.0.1 · tier engine_tested

Open calculator API Capability Download JSON CVP Manifest Reproduce MCP Review policy

CVP status

CVP VERIFIED · CVP protocol 1.0.0-proposed · Engineering assurance · n = m/M and N = n N_A, + O3 mpmath tabulated mole amount.

Not molarity. O3 tabulated vectors only.

Declared partition coverage
PASS · 8/8 declared partitions (alias, zero, to-mass, from-particles, to-particles, awkward, from-mass, invalid-domain)
Versions
Calculation 1.0.1 · CVP protocol 1.0.0-proposed · Evidence 2026-09-25.o2-o3
Verification revision
2026-09-25.o2-o3 · 1/1 property · digest d59a4c74e31c

Verification

Legacy regression suite: 12/12 calculation tests · Production surface contract 5/5

Three distinct suites: educational examples on the calculator page, this legacy regression count (12/12 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. Verification revision 2026-09-25.o2-o3. Calculation version 1.0.1. CVP 1.0.0-proposed. 4/4 golden · 5/5 CVP boundary · 5/5 invalid · 1/1 property · 1/1 metamorphic · 8/8 O3 · 2/2 cross-interface · 5/5 CVP contract. digest d59a4c74e31c. O2: n = m/M and N = n N_A vs a separate-module identity (≤2 ULP). Not molarity. ≤2 ULP vs O3 applies only to the published tabulated mole vectors. Not molarity.

  • Golden (oracle-backed) 4 / 4
  • CVP boundary 5 / 5
  • Invalid input 5 / 5
  • Property 1 / 1
  • Metamorphic 1 / 1
  • O3 high-precision 8 / 8
  • Cross-interface 2 / 2
  • CVP contract 5 / 5
  • Interfaces PASS · UI (SSR) / REST / MCP
  • Interface claim ui-ssr is query-result HTML, not a live browser session. Error-path engine·REST·MCP 1/1 (status, code, calculation_version). SSR compared on URL-canonical requested calculations; empty query is idle (not an error) and JSON-typed object/array inputs are REST/MCP-only.
  • Verified scope n = m/M and N = n N_A, + O3 mpmath tabulated mole amount.
  • Assurance Engineering
  • Deferred Not molarity and not a buffer.
  • release artifacts aligned PASS
  • schema output required declared PASS
  • schema valid input executes PASS
  • engine success output validates schema PASS
  • rest success payload validates schema PASS

Fingerprint sha256:c96ee63f797a666d883a3c1a711cb8232ab6159b412da62b5fe7834f15662992

Input schema sha256:c4d27473abbef53068956b1ce79a5991118f837a65af5d40c60d58eb66216819 · Output schema sha256:d066ffeb7bde857899a9aa02bd53eb064de5c97e28c50b7b917cb70183ee7db9 · 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
mole
Engine
mole
Engine build
2026-09-25
Evidence core
2026-09-25T01:07:25.937Z
Rendered
2026-10-23T01:27:11.352Z
Last reviewed
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Assumptions

  • n = m/M
  • N = n·N_A
  • N_A = 6.02214076e23 (CODATA 2018 exact)
  • Lab units g, g/mol, mol
  • Not molarity or dilution
  • Not ICE or Henderson–Hasselbalch

Limitations

  • Lab units g, g/mol, mol
  • Not molarity c=n/V or dilution C1V1=C2V2
  • Not ICE or Henderson–Hasselbalch
  • Does not rewrite /convert/chemistry pair pages

Sources

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

Verification disclosure

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.