math.antilog

Three distinct suites: educational examples on the calculator page, this legacy regression count (33/33 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 1.0.6 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 2026-10-13.antilog-alias-replay. Calculation version 1.0.6. CVP 1.0.0-proposed. 32/32 golden · 19/19 CVP boundary · 23/23 invalid · 5/5 property · 4/4 metamorphic · 5/5 round-trip · 15/15 O3 · 49/49 cross-interface · 4/4 URL→result→graph · 5/5 CVP contract. digest 0a9ae66eb0aa.

• Golden (oracle-backed) 32 / 32
• CVP boundary 19 / 19
• Invalid input 23 / 23
• Property 5 / 5
• Metamorphic 4 / 4
• Round-trip 5 / 5
• O3 high-precision 15 / 15
• Cross-interface 49 / 49
• URL → result → graph 4 / 4
• CVP contract 5 / 5
• Interfaces PASS · UI (SSR) / REST / MCP / URL→result→graph
• Interface claim Success 30/30. Error-path engine·REST·MCP 19/19 (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. Integration: URL → SSR result → Live graph current point (4/4). Hydration/slider/history are URL-canonical contracts, not a live browser session.
• Assurance Core

• 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 sha256:05cd9c69b7de07af03b0a49f819608f37d7d4caafb23ac35d400f7e7bb58e157

Input schema sha256:e310142bf9f117afb5f812f0cfdf8363d1cc0964fcc5069447cb70a54ff0dd05 · Output schema sha256:449931cc55a5e14d805c273bb500e6df4752044f651c4223e19b18691fa96017 · 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.

Tool

anti-log

Engine

antilog

Engine build

2026-10-14

Evidence core

2026-10-14T02:50:33.742Z

Rendered

2026-10-22T08:54:35.079Z

Last reviewed

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Assumptions

• Real arithmetic; base b > 0 and b ≠ 1.
• Result x is positive for real y when b > 0.

Limitations

• Base must be > 0 and ≠ 1 → INVALID_BASE
• Missing y → MISSING_REQUIRED_INPUT; overflow/underflow → RESULT_OVERFLOW / RESULT_UNDERFLOW