ULID

• Practical log investigation to restore failure time from UUIDv7/ULID 2026-03-07
  We will summarize the practical steps to use the time information included in UUIDv7 and ULID to restore the time of failure and speed up primary isolation. It also deals with the pitfalls of time differences, clock discrepancies, and identical ms collisions.
• Comprehensive comparison of UUID v4, UUID v7, and ULID: how to balance time order, efficiency, and readability 2025-08-27
  A deep dive into UUID v4, UUID v7, and ULID—how to weigh time ordering, collision probability, database efficiency, and implementation pitfalls, with notes on UUID v1 and v6.