# The Problem With final_FINAL_signed_v7.pdf

A filename is a label, not revision lineage. UDR records revisions; UDS identifies a sealed final state and detects later byte changes.

## How UD approaches the problem

UDR preserves revision lineage. UDS binds verification to an exact final state. BrowserCarrier is offline-readable and zero-install.

## Limitation

Technical provenance does not decide authenticity, relevance, completeness or admissibility.

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