# A Signed Contract Should Remember What Came Before It

The signing state matters, but so does the path to it. UD separates living revision history from the sealed final document while preserving an explicit relationship between them.

## 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