Ujex Evidence

Ujex records privileged agent activity in a hash-chained ledger. The launch value is simple: an owner can export what happened and verify that the exported chain has not been changed.

What goes in

• Identity and device-key changes
• Inbox send and receive events
• Human approval decisions
• Tool policy decisions
• Budget preflight decisions
• Provenance reads and writes

Hash chain

row[N].hash = sha256(prev_hash || canonicalize(row.body))

Changing a past row breaks the following hash. The verifier reports the first bad sequence.

Export

Signed evidence bundles include records, manifest, signature, and trust metadata. External ledger anchoring is not part of the current launch claim.