UUID v1 Generator

UUID v1 is timestamp-based and may be required for compatibility with legacy systems. Because it can reveal timing and node-related information, many modern systems prefer UUID v4 or UUID v7.

• Generate UUID v1 for legacy compatibility.
• Choose uppercase or no-hyphens formatting if needed.
• Copy and use in test payloads.

Privacy note: avoid v1 if you don’t want time/node metadata to be inferable.