BII · SHADOW CALIBRATION · SEPTEMBER 15, 2026

A property score should be allowed to say “insufficient data.”

BridgePoint is developing the BridgePoint Integrity Index (BII) as a transparent 0–100 integrity/resilience context index. The first design rule is deliberately conservative: if evidence coverage and confidence do not meet the publication gate, BridgePoint does not invent a numeric score.

5,041current property-health assessments
5,369,598dynamic property-intelligence scores in a separate model
0properties currently meeting the strict public BII gate
0.153maximum current health-layer confidence at this checkpoint
Why zero is useful: it shows that BII is not being reverse-engineered to create flashy 80/100 badges before the underlying evidence supports them. The property-health layer currently has only one observed component family per assessed property, while the initial public BII gate requires at least three plus confidence of at least 0.50.

What BII is intended to measure

BII is designed to combine physical-component health evidence, source-labelled hazard exposure, recovery or mitigation evidence, freshness, provenance, evidence coverage and uncertainty. Higher values are intended to mean stronger evidence-supported property integrity/resilience context after calibration.

What BII is not

It is not an “exact structural survival probability.” It is not an insurance price, lending score, investment recommendation, coverage determination, engineering certification or claim-validity decision. Those uses require separate validation, governance and jurisdiction-specific review.

Why the score stays separate from confidence

A numerical index and confidence are different things. BridgePoint exposes confidence, observed component count, data coverage, reason codes and model version separately. If a future property reaches 82/100 but the evidence is thin or stale, the confidence must make that visible.

How distribution can work without deceptive injection

BridgePoint has published an opt-in embeddable BII badge and a read-only machine contract. A site owner or user can deliberately add the badge to a GIS application, internal dashboard or permitted web property. A user-initiated browser-extension preview can perform address lookups without silently scraping or modifying third-party property portals.

Current model status: SHADOW_CALIBRATION. BridgePoint will not label BII as decision-grade until outcome validation, calibration, holdout testing, drift monitoring and use-specific governance support the claim being made.
OPEN BIIINSTITUTIONAL TERMINALEMBED BADGE