> For the complete documentation index, see [llms.txt](https://olimpus-finance.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://olimpus-finance.gitbook.io/docs/tutorials/bridge.md). # Bridge ![](/files/99h3GNeaY8t8KVOwusnW) A blockchain bridge is a connection that allows the transfer of tokens and/or data from a blockchain to another, including smart contract instructions. The two blockchains have different protocols, rules and governance models (such as Fantom, Bitcoin and Ethereum), but the bridge provides a compatible way for them to operate with each other securely on both sides. This interoperability allows users to make fast, low-cost transactions of tokens hosted on otherwise less scalable blockchains and run Dapps on more than one platform. Bridges can be created to suit various purposes and objectives. Not only are they capable of allowing a token from one network to be used on another, but also to exchange any type of data, decentralized identifiers, off-chain oracle information and much more. Bridges allow applications to be even more decentralized by not being limited by their home network. ### Which types of bridges we have? There are various bridge designs, but they can generally be divided into two categories: more centralized bridges, which rely on trust, and decentralized bridges. Centralized bridges rely on some sort of central system or authority to operate; this implies that users must trust a mediator to use a particular application or service. In contrast, decentralized bridges are those that do not require users to place their trust in an external authority or entity. In this case, the trust is placed in the mathematical algorithm embedded in the code. In a decentralized blockchain system, this is achieved by nodes reaching a consensus in common agreement with the rules established in the software. This eliminates many of the problems of centralized systems, which are open to abuse of power or corruption, through transparency and the incentive of widespread participation. --- # 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: ``` GET https://olimpus-finance.gitbook.io/docs/tutorials/bridge.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.