# `Ash.Type.UUIDv7`
[🔗](https://github.com/ash-project/ash/blob/v3.33.1/lib/ash/type/uuid_v7.ex#L5)

Represents a UUID.

A builtin type that can be referenced via `:uuid_v7`

### Constraints

* `:strict?` (`t:boolean/0`) - Requires the value to actually be a version 7 UUID. Recommended for externally-supplied values: without it, any well-formed UUID (not only version 7) passes input casting and is stored and loaded back as-is, so a caller can persist a non-v7 UUID in a field meant to hold v7 UUIDs. The default value is `false`.

# `handle_change?`

# `prepare_change?`

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*Consult [api-reference.md](api-reference.md) for complete listing*