# Generate UUID v7 values in one sequential set

Choose time-ordered UUIDs and understand how a sequential set differs from the default fresh randomness for each value.

Source: https://help.smartfact.ai/guidbench/guides/sequential-v7

Audience: Operator

Choose time-ordered UUIDs and understand how a sequential set differs from the default fresh randomness for each value. This is isolated practice with invented records. Nothing is uploaded or written into a live system.

## Generate UUID v7 values in one sequential set

1. **Choose time-ordered UUIDs**

   Choose time-ordered UUIDs.

   UUID v7 includes a millisecond timestamp and random data. It is useful for sortable identifiers; it is not proof of an exact event time.

2. **Set the batch size**

   Set the batch size.

   Keep this practice set small enough to inspect each value.

3. **Choose one sequential set**

   Choose one sequential set.

   This option keeps one starting timestamp for the whole set and increments a randomly seeded suffix. A new Generate click starts a fresh set.

4. **Generate the sequential set**

   Generate the sequential set.

   The three identifiers are ordered within this set. Their timestamp reflects the device clock when the set began.

[Watch or practise this chapter](https://help.smartfact.ai/guidbench/demo?guide=sequential-v7&chapter=sequential-v7&audience=office)

Review the result and its limits before using it in another application.