# Chain Spacy has chosen Arbitrum for its smart contracts and wallet solutions, identifying it as the most optimized and extensive Ethereum Virtual Machine (EVM) among all Ethereum Layer 2 solutions. Spacy's storage solutions, including both cold and hot wallets, as well as the staking smart contract, are all based on Arbitrum, along with the $SPACY token. Initially, Spacy's smart contracts for deposits and withdrawals, which act as the entry points for funds into the virtual layer, only support ETH on the Arbitrum blockchain. However, future updates will enable these smart contracts to incorporate LayerZero endpoints. This will allow for the deposit and withdrawal of funds to and from other Ethereum Virtual Machines (EVMs), while still keeping Spacy's storage solutions on Arbitrum. A bridge will be added to facilitate deposit and withdrawal transactions. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://spacy.gitbook.io/spacy/smart-contract/chain.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.