# Proof of Artifacts
*Visual and structural evidence that this project works, ships, and is real.*
> Proactive detection of Labor Category Fraud and Ghost Billing for DoD IG and FBI fraud investigators.
## Architecture
```mermaid
flowchart LR
Data[Contract/Employee/Billing Data] --> Ingest[Ingest + Validate]
Ingest --> Labor[Labor Cat Detector]
Ingest --> Ghost[Ghost Billing Detector]
Labor --> Alerts[Alert Engine]
Ghost --> Alerts
Alerts --> Referral[GAGAS Referral / FBI Case Docs]
```
## Build Output
| Language | Rust |
| External dependencies | Zero runtime services |
| Detection rules | 5 (LABOR_VARIANCE, LABOR_QUAL_BELOW, GHOST_NO_EMPLOYEE, GHOST_NOT_VERIFIED, GHOST_BILLED_NOT_PERFORMED) |
| Legal basis | DoDI 5505.02/03, DoD OIG Fraud Scenarios, AG Guidelines |
| Test suite | f49–f60 (embedded) |
| Cloud dependencies | Zero |
## How to Verify
```bash
cargo build --release
cargo run --release -- --data-path fixtures run
cargo run --release -- --test
```
## Documentation
- [USER_STORY_ANALYSIS](docs/USER_STORY_ANALYSIS.md) — DoD IG / FBI personas
- [TRIPLE_SIMS_WHYYOULYING](docs/TRIPLE_SIMS_WHYYOULYING.md) — Sim 1–4
- [TRIPLE_SIMS_ARCH](docs/TRIPLE_SIMS_ARCH.md) — Domain model, pipeline
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*Part of the [CochranBlock](https://cochranblock.org) zero-cloud architecture. All source under the Unlicense.*