Metadata checker & cleaner for AI photos and videos before posting — reads and removes hidden AI markers (C2PA / Content Credentials, EXIF, IPTC, XMP) and applies real camera data. Telegram bot @remorvibot, RU/EN.

Browser-based Oblivious HTTP demo — RFC 9458. Three parties, split knowledge: relay sees your IP, gateway sees your request, neither sees both. Real HPKE encapsulation over Binary HTTP. Flip the collusion toggle and watch the guarantee evaporate — it was always an organizational assumption, not a mathematical one. No backends. No simulated math.

Browser-based ECH demo — draft-ietf-tls-esni. TLS 1.3 protects every byte except the hostname it announces first. Real HPKE seals the ClientHelloInner; a network observer sees only the outer. Tamper the ECHConfig and watch the real open fail. Metadata is the leak encryption doesn't close. No backends. No simulated math.

Exifer is a next-generation cybersecurity-focused EXIF and metadata forensic analyzer for Android. It is designed to help users, investigators, journalists, and privacy-aware individuals detect:

KOTVA — the sovereign substrate: a narrow-waist protocol family (identity, signed objects, transport, pub/sub, sync) with mail (DMTAP), commerce (TRACT) and work (WRAP) as profiles. No token.