Certification Report — Starship Build Engineering System

The certification state, Evidence Grade, and Trust Score below are assigned by
the Forge Proof Layer (tools/forge-proof.mjs, IRS_AUDITOR standard) from
objective evidence. They are reproduced here from
proof/PROOF_DECISION.json / proof/PROOF_SCORECARD.json and are not
hand-edited.

Decision

Basis for Evidence Grade B

Synthetic benchmark, reproducible, complete audit trail, documented seams. The grade is held below A because there is no official/external benchmark — the benchmark runs on a notional model (a disclosed seam), not real production data.

What CERTIFIED means here

All proof gates passed: required artifacts exist, verification completed with every check passing, evidence is complete, exact reproduction instructions exist, unsupported claims are 0, and the required seams are disclosed and do not contradict the delivered outcome (a correct, reproducible build-engineering math system). It does not assert real-world production accuracy — see the disclosed seams.

Disclosed seams (carried into the decision)

• The vehicle model (src/vehicle.mjs) is notional, self-authored data — not

real SpaceX data or measured production figures.

• No physical hardware was built or measured.
• The benchmark is a SIMULATED result on the notional model.
• Process-capability fallout assumes a normal, in-control process.

Reproduce the decision

node tools/forge-proof.mjs --outcome delivery-package/starship-build-engineering --verify "node verify.mjs" --report verification-report.json
node tools/forge-proof-verify.mjs --outcome delivery-package/starship-build-engineering