01
Living architecture
Turn a changing code estate into an explorable system map—symbols, references, dependencies, runtime seams and the evidence horizon behind every answer.
PROOF SURFACECurrent-tree evidence + indexed history
Prepared for UnitedHealth Group + Optum
Make every consequential technology claim inspectable.
PX gives engineering and AI teams a living evidence layer for complex systems—so architecture, documentation, change impact and review conclusions stay connected to the source that makes them true.
Read-only firstNo PHI in phase oneDeploy in UHG-controlled infrastructure
PX / EVIDENCE RECEIPTCURRENT
px ask“What breaks if this AI policy or service contract changes?”
01Noticeexact symbols
02Traversecall + data paths
03Explainbounded judgment
Evidence horizoncurrent tree + indexed history
Confidence0.92 / falsifiable
Continuation3 decisive next probes
Receiptcontent-addressed
148Mpeople served across the enterprise
1,000+active AI use cases
2complementary businesses, one evidence challenge
6 weeksto prove a bounded pilot
01 / THE GAP
Smarter models need a stronger evidence substrate.
UnitedHealth Group already operates AI at extraordinary scale. The harder problem is not producing another answer. It is proving which source, dependency, policy and system boundary made that answer defensible—especially after the system changes.
Typical agent workflowSearch → summarize → forget
↓
PX evidence workflowMap → reason → receipt → compound
02 / WHAT PX CHANGES
One scan. A living evidence atlas.
PX combines graph intelligence, semantic retrieval and documentation authority while exposing exactly what it inspected and what remains unknown.
02
Cross-language impact
Trace a consequential change across TypeScript, HTTP, Rust, SQL, configuration and operational boundaries without losing the caller or the confidence level.
PROOF SURFACEBounded continuations, not search-result dumps
03
Documentation that stays attached
Generate architecture and workflow explanations from the same evidence graph engineers query—then show when the source has moved beyond the document.
PROOF SURFACEClaim → file → symbol → horizon
04
Review with receipts
Give engineering, security and Responsible AI reviewers the exact route, artifacts, uncertainty and next verification step—not a prose-only verdict.
PROOF SURFACEReproducible evidence packets
04 / THE FIRST MOVE
Prove it in six weeks.
Start with one bounded Optum Insight code and documentation estate. Keep it read-only, exclude PHI, run it inside UHG-controlled infrastructure and measure whether evidence actually becomes faster and more reproducible.
W01–02Connect + baseline
Index one estate and freeze the initial evidence horizon.
W03–04Run real questions
Use engineering, documentation and Responsible AI cases.
W05–06Measure + decide
Compare speed, reproducibility, gaps and reviewer effort.
SOURCE DISCIPLINE
The pitch carries its evidence.
NEXT HORIZON
See what the evidence fabric could become→