Hash case files into a tamper-evident index — only fingerprints and labels are shareable, the documents themselves stay private on your device. Attach the packet to a receipt for audit, procurement, or oversight.
Add your documents and the agent makes a fingerprint of each — proving later that they haven't changed — without ever uploading the files anywhere.
Add your evidence files; the agent computes a SHA-256 fingerprint of each one entirely in your browser — the files are never uploaded — and assembles a public-safe evidence packet: labels, fingerprints, and sensitivity, with the documents themselves kept private. A fingerprint later proves a file hasn't changed since you bound it.
A fingerprint proves a file is unchanged since you bound it — not that the file is authentic, lawful, or sufficient. Files are hashed in your browser and never uploaded. Choose each item's sensitivity; private items' contents are never put in the packet. Review sensitivity before sharing. AI creates; PlenaProof proves the record — it complements, it does not replace, the deciding authority.
Each item gets a SHA-256 fingerprint, computed locally.
Each file is read into memory and fingerprinted with SHA-256 using your browser's built-in cryptography. The bytes never travel over the network.
The packet holds labels + fingerprints + sensitivity only. Private documents stay with you; you can prove they match the fingerprints later, on demand.
The draft packet maps to the PLENA VRX-1 evidence_packet shape, ready to attach to a signed receipt — so the evidence set itself becomes provable.