Before/After is a mobile app that generates cryptographically signed, GPS-stamped, RFC 3161-timestamped before/after photo proof for field workers.
Any edit instantly invalidates the signature. Clients verify locally - zero backend trust required.
Every proof includes Ed25519 signature, SHA-256 hash, external timestamp, and GPS accuracy to the meter. Exports as JSON, PDF, or Legal format.
Full IP transfer available.
