004.2
UUID & ULID
001
SETTINGS
003
ABOUT UUID
UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. Version 4 UUIDs are randomly generated and cryptographically secure.
Format: 8-4-4-4-12 hexadecimal digits (e.g., 550e8400-e29b-41d4-a716-446655440000)
Use cases: Database primary keys, session IDs, file names, distributed systems, API keys.