Legal Sandwich™ · Evidence Verifier

Verify an Evidence Pack.
Trust the math, not us.

This page re-derives the cryptographic seal of a Legal Sandwich™ Evidence Pack entirely in your browser — same RFC 8785 canonicalization and RFC 6962 Merkle tree it was sealed with. No account. The original never leaves your device. A judge or opposing counsel can confirm authenticity here without ever using our product — and the proof holds even if our company disappears.

RFC 8785 JCS RFC 6962 Merkle SHA-256 Web Crypto 0 uploads · 0 accounts
Source-available verifier — the complete, unminified algorithm this page runs is served at vr-verify-core.mjs and is byte-for-byte parity-tested against the production sealing code. The integrity hash is computed over the canonical evidence data (not the PDF bytes), so re-running yields an identical hash in any language.