# Storage Architecture

EthSign uses a hybrid storage architecture to strike a balance between usability and decentralization. As a document is uploaded and a signing session is created, all data is temporarily stored in our servers to optimize performance. Once all parties have finished signing, the document is sealed and uploaded to Arweave for permanent, decentralized storage.

<figure><img src="/files/MYTFhNzum4eAshALvqCb" alt=""><figcaption><p>Sequence Diagram Depicting the Hybrid Storage Approach in the Signing Process</p></figcaption></figure>


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