> For the complete documentation index, see [llms.txt](https://crosschain-alliance.gitbook.io/hashi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://crosschain-alliance.gitbook.io/hashi/introduction/the-ssn.md). # The SSN The blockchain ecosystem is rapidly evolving into a diverse environment with various types of virtual machines (VMs), rollup stacks, and modular networks. As more unique blockchain platforms emerge connecting these ecosystems to enable seamless asset transfers, liquidity provision, and state verification has become a significant challenge. ### The Problem Traditional cross-chain solutions like **General Message Passing (GMP)** struggle to support the vast and expanding landscape of chains. Most chains can only establish direct connections to their primary settlement layer, limiting interactions across unrelated networks. Furthermore, existing cross-chain solutions often rely on capital-intensive models that are inefficient and costly, particularly when attempting to verify the state of one chain on another. ### How SSN Solves It The **Hashi State Sharing Network (SSN)** introduces a scalable and efficient solution for cross-chain interoperability. SSN facilitates the regular relaying of state information across multiple chains, allowing for secure, low-cost, and trust-minimized cross-chain interactions. By implementing multi-hop routing pathways, SSN enables communication between any chains, even those that are not directly connected. This solution optimizes state verification and reduces gas costs by leveraging intermediary networks (e.g., Gnosis) as hubs for state updates, making it easier for developers to build interoperable applications across chains. In short, SSN provides a unified layer for state sharing, driving forward a vision of a fully interconnected blockchain ecosystem where diverse networks can collaborate seamlessly and securely. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://crosschain-alliance.gitbook.io/hashi/introduction/the-ssn.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.