> For the complete documentation index, see [llms.txt](https://docs.rigoblock.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rigoblock.com/contracts/protocol/proxies/proxy.md).

# proxy

RigoBlock proxies are ultra-light contracts developed according EIP1967 that only declare \_IMPLEMENTATION\_SLOT in their storage, where the implementation address is stored. At contract creation, the initialization storage slots are written to the proxy storage at a deterministic slot which, by design, will never accidentally clash with other variables.

<figure><img src="https://1499155236-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlUxwUAsUBQ9ISBirGP08%2Fuploads%2Fgit-blob-64b66985e25deda122b0a7c49c301ba3d9d42ceb%2Fproxy.svg?alt=media" alt=""><figcaption><p>Credits: UML diagram generated with <a href="https://github.com/naddison36/sol2uml">SOL2UML</a></p></figcaption></figure>