# What Exactly Became Final — and Can You Prove It?

A trustworthy final record identifies the exact bytes, signing or approval evidence and relationship to prior revisions without relying on the filename alone.

## UD model

UDR carries revisions. UDS preserves an exact final state. An amendment creates a new UDR.

## Boundary

UD coexists with current enterprise systems and does not by itself establish compliance or legal sufficiency.

- Demo: https://universaldocument.org/corporate/demo
- Pilot: https://universaldocument.org/corporate/pilot