# Glossary

* **OCR**: Optical Character Recognition – Extracts text from documents for verification.
* **Facial Liveness**: Ensures selfies are taken in real-time, preventing fraud.
* **OTP**: One-Time Password – Sent to the user’s phone for identity confirmation.
* **Kafka**: A messaging system for reliable data transfer between backends.
* **Nautilus**: running backends in the secure enclave using nautilus.
* **ODA Ephemeral Key**: A one-time key for signing verification payloads.
* **Walrus**: A decentralized storage platform for encrypted documents.
* **Seal**: encryption layer for suiverify.
* **DID**: Decentralized Identifier – A unique ID for verified credentials.
* **NFT**: Non-Fungible Token – A blockchain-based token proving verified credentials.

This glossary clarifies key terms used in SuiVerify’s documentation