What is a UUID / GUID?
A Universally Unique Identifier (UUID) or Globally Unique Identifier (GUID) is a 128-bit label used in software development to uniquely identify information without requiring a central registration authority.
Difference between UUID v1 and v4:
- UUID v4 (Random): Generated using cryptographically strong pseudo-random numbers. It is the most commonly used format.
- UUID v1 (Timestamp-based): Generated based on the current timestamp and host MAC address.