> ## Documentation Index
> Fetch the complete documentation index at: https://starkware-9575960b-starknet-privacy-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# core::starknet::class_hash::ClassHash

Represents a Starknet contract class hash.
The value range of this type is `[0, 2**251)`.

## Signature

```rust theme={null}
pub extern type ClassHash;
```