PAIR System Architecture A Governed Model for Continuous Environmental Exposure

Overview

The Personal Atmospheric Integrity Record (PAIR) is built as a multi-layered system that preserves environmental exposure as a continuous, governed chronology.

Each layer is structurally separated to ensure that:

• observation is preserved without distortion

• chronology is maintained without gaps being hidden

• admissibility is evaluated before use

• interpretation is constrained by context

• action only occurs when conditions are satisfied

Layer 1 — Observation

The observation layer captures environmental conditions without interpretation.

Sources may include:

• personal and wearable sensors

• mobile or pocket devices

• vehicle cabin environments

• building-based Atmospheric Integrity Record (AIR) nodes

• travel environments (aircraft, transit, temporary occupancy)

All observations are recorded with:

• timestamp

• source identity

• measurement type

• sensor condition

• location context (bounded where possible)

No conclusions are made at this stage.

Layer 2 — Chronology

PAIR organizes all observations into a continuous, time-sequenced record.

This layer ensures:

• append-only event logging

• ordered environmental exposure history

• explicit marking of data gaps

• recorded transitions between environments

• no artificial smoothing or averaging that hides reality

Chronology preserves the integrity of:

• what happened

• when it happened

• how long it lasted

Layer 3 — Admissibility

Not all data is equal.
The admissibility layer evaluates whether recorded observations can support downstream use.

Each exposure interval is assessed based on:

• sensor type and reliability

• calibration state

• continuity of data

• bounded environmental context

• source traceability

• interference or uncertainty conditions

This creates structured confidence in the record without altering the underlying data.

Layer 4 — Identity and Linkage

PAIR connects the individual to environments across time.

This layer enables:

• linkage between personal devices and AIR-enabled spaces

• association of exposure intervals with specific locations

• continuity across transitions (home → vehicle → building → travel)

• preservation of movement as part of the environmental record

PAIR does not operate in isolation—it bridges environments.

Layer 5 — Interpretation Firewall

Interpretation is structurally separated from observation.

PAIR does not:

• diagnose

• assign causality

• declare safety or harm

• make unbounded claims

Interpretation is only allowed when:

• admissibility conditions are satisfied

• environmental context is fully bounded

• continuity is sufficient

If these conditions are not met, the system defers.

Layer 6 — Action

Action is the final layer and is dependent on all preceding layers.

When conditions are satisfied, PAIR can support:

• exposure alerts

• environmental avoidance decisions

• clinical review inputs

• occupational exposure tracking

• legal and insurance documentation

• performance validation across environments

All actions are traceable back to recorded evidence.

System Integrity Principles

PAIR operates under the following non-negotiable principles:

• Append-only record: no overwriting of environmental history

• Provenance visibility: every data point has a known source

• Gap transparency: missing data is explicitly recorded

• No false continuity: the system does not fabricate completeness

• Governed interpretation: conclusions require admissible context

• Evidence before action: no intervention without record

Architectural Position

PAIR extends Environmental Integrity Governance by connecting:

• Place-based records (AIR)

• Human exposure continuity (PAIR)

• Unified environmental accountability (EIR)

This creates a system where:

• environments are recorded

• people are tracked across those environments

• exposure is preserved as a continuous, governed history

Summary

PAIR is not a sensor or an application.

It is a governed environmental recording architecture that ensures personal exposure is:

• continuous

• time-sequenced

• source-attributed

• admissibility-aware

• protected from premature interpretation