How quality is measured

Every cohort entry passes four independent audit gates. Every paid molecule is delivered with the per-drug audit log. If anything in the log fails for a delivered drug, we re-run on our dime.

Quality is not a marketing claim — it is per-drug measured. The four gates are: (1) SCF convergence, (2) σ-profile sum positive with at least five non-trivial bins populated, (3) .mfsig SHA-256 integrity verification after write, (4) geometry RMS-gradient ≤ 10⁻³ H/Bohr. On the 100-drug reference cohort, 99 of 100 drugs PASS all four.

The audit log is shipped inside the .mfsig.json itself — the file is the contract. A regulator, a peer reviewer, or your own QA engineer can re-verify every claim against the bytes you received, with no external dependency.

What gets verified

σ-profile Pearson r vs a CPU ground truth measured on aspirin and atorvastatin: +0.99991 and +0.99982 respectively. Energy fidelity |ΔE| ≤ 1.1 × 10⁻⁹ H. All 5 of 5 cavity unit tests pass at machine ε precision.

What it unlocks

Tamper-evident σ-profiles tied to a methodology you can audit. SLA-grade delivery for production pipelines. A re-run guarantee on every paid molecule. A path to 21 CFR Part 11 ALCOA compliance without writing your own data-integrity layer.