> For the complete documentation index, see [llms.txt](https://docs.bladeblockchain.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bladeblockchain.tech/detailed-design/evm-compatible-data-structures/blade/state.md).

# State

The blockchain **WST** is accessed at the application level through a `State` object.

* `State` is a **wrapper around the Storage** layer.
* It includes an **LRU cache** to optimize access to disk-based data.
* The `State` object is used to **create a WST snapshot** at a specific root address, allowing for manipulation of the WST at that point in time.

The following class diagram illustrates the most important subset of methods provided by the `State` object:

<figure><img src="/files/V0IuVMYZqKqfGvuijr79" alt=""><figcaption><p>A table listing the key methods.</p></figcaption></figure>