Proof

See the evidence, not just the grade.

A continuous score, its drivers, and the evidence underneath it — never just a grade on its own. Hash-verifiable, reproducible, scope-stamped and expert-reviewable.

The evidence package

Four readers. One underlying record.

FINDING · UNDERWRITING

Degradation trajectory exceeds the model baseline from day 24. Primary driver is DC fast-charge frequency, not calendar age.

LIMITATIONS & CONFIDENCE

The rating is decision-support, not a bindable guarantee of loss or acceptance. The formula is proprietary.

REEF SYNTHETICsame record · four lenses · the interface changes, the record does not
How we validate

Reef builds the world. Arctura judges it.

Every model is stress-tested against a synthetic falsifiability substrate before it goes near a production grade. Reef can replay the same seeded world while changing only one controlled variable — so you can see that only the changed asset moved.

See a replay at reef.neurflow.fi →
VALIDATION SUBSTRATE
LFP degradationsub-5% trajectory error · shape validated · LFP/MATR
Duty-robustnessHT ↔ BESS zero-shot < 3%
Data synergynot shown — stated plainly
Isolationrandomness forked per asset — one device never reshuffles the fleet
REEF SYNTHETIC
Why it stays credible

Keeping the two separate is what keeps the evidence credible.

Does not write the test it grades against

The engine that produces the rating is separate from the substrate that stress-tests it.

No access to proprietary rating weights

The replay substrate can't see the composite formula it's probing.

Relative modeled delta, never a market price

Reef € figures are model deltas vs a synthetic reference — never quoted market prices.

Not court-grade proof

A rating is decision-support and reproducible evidence — not legally proven causation.

Bring the decision you need to defend.

Open a sample rating and walk the evidence package end to end, or go straight to the trust page and see what’s live, proven and still ahead.

Open a sample ratingWhat’s live, proven, ahead →