physics.fluid.pitot

• Golden tests 2 / 2
• Boundary tests 10 / 10
• Property tests 5 / 5
• Production surface contract 3 / 3
}
• Engine tested Yes
• Source checked Yes
• Artifact integrity PASS
• Production attestation Embedded snapshot: STALE · Last attested schema matched 1.0.0 snapshot / local build · Semantic contract ✓ · Last attestation PASS · current evidence changed · re-attestation required · Public/cache ✓ · Origin ✓ · Live production status PASS (0 stale; 163 CURRENT) @ 2026-09-17T09:03:11.906Z
• Semantic contract PASS
• Evidence attested at 2026-09-17T09:03:11.074Z
• Last production check 2026-09-17T09:03:11.074Z
• Public / cache PASS
• Origin PASS
• Supplemental domain review Not performed
• Named expert review Not performed

• release artifacts aligned PASS
• schema valid input executes PASS
• engine success output validates schema PASS

Fingerprint sha256:df9f55006c57c30c05fbc60b55e0df94a7e08fea05cf66b60368c1408fc9b7c5

Input schema sha256:3d2b0288ca0d60d77024070ce92d740aab36efe992b69c32fa9ac1325e302f69 · Output schema sha256:4af43f43f88a42898996fac30d314a3e694e36882c3f34037c80a2dcc17f62b9 · 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

pitot-tube

Engine

pitot-tube

Engine build

2026-09-17

Evidence core

2026-09-17T06:50:47.586Z

Rendered

2026-09-17T08:49:50.938Z

Last reviewed

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Assumptions

• Incompressible pitot-static; v = C √(2 Δp / ρ); default C=1
• Δp is P0 − P_static at the probe
• Not compressible, not a venturi, not an orifice, not Q=Av, not two-station Bernoulli

Limitations

• Incompressible pitot-static: v = C √(2 Δp / ρ); default C=1
• Δp is dynamic pressure P0 − P_static; C is a probe coefficient, not orifice C_d
• Not a venturi, not an orifice, not Q=Av, not two-station Bernoulli