NIL UUID (All Zeros)

The nil UUID represents "no UUID" and contains all zeros. UUID: 00000000-0000-0000-0000-000000000000

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NIL UUID (All Zeros)

The nil UUID represents "no UUID" and contains all zeros.

00000000-0000-0000-0000-000000000000

UUID Components

A UUID consists of 32 hexadecimal digits in the format: xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx

M: Version number (1-5)
N: Variant (8, 9, a, or b for standard UUIDs)

Code Examples

// JavaScript
crypto.randomUUID(); // Generate v4 UUID

# Python
import uuid
str(uuid.uuid4()) # Generate v4 UUID

# Command line (Linux)
uuidgen

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