# YAR architecture YAR consists of three decentralized solutions - YAR chain, YAR protocol, and YAR vault: * The **YAR chain** ensures the operation of smart contracts; * The **YAR protocol** stores a set of connectors that ensure the interaction of smart contracts deployed in the YAR chain with external sources, objects, and subjects of those sources; * The **YAR vault** creates and stores private TSS keys YAR protocol. YAR allows the developer to create smart contracts by connecting any number of available blockchains to them, and work with coins, tokens, smart contracts, and any other objects and entities as if all this was directly available in the ecosystem. At the same time, the requirements of reciprocity, consistency, and decentralization are observed. An important aspect, by creating a smart contract in YAR, the results of its work can be used in any other connected blockchain, which will lead to an increase in the interoperability of all blockchain networks in the future. --- # 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://docs.yarchain.org/whitepaper/yar-architecture.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.