> For the complete documentation index, see [llms.txt](https://docs.presend.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.presend.io/why-does-all-of-this-matter/the-presend-solution.md). # The PreSend Solution PreSend takes a strategically proactive approach, considering the problematic nature of having hundreds of different blockchains that aren’t necessarily compatible or communicating with each other. What PreSend does is aid it’s users in the avoidance of a mismatched, in terms of blockchains, transaction from happening. PreSend nips this in the proverbial “bud” from the start, this way the transaction never goes through. PreSend’s proprietary, provisionally patented, and patent pending software performs automated double-checks to ensure that the user has entered valid transaction details, and the user doesn’t have to do anything extra for this process to complete. **Three rounds of checks are performed that cancel transactions if:** 1. The receiving crypto wallet or crypto exchange does not support the token to be transferred (IE: token doesn’t exist on the chain/exchange). 2. The blockchain network selected for the target address doesn’t match the token standard of the token to be transferred (example ERC-20 to a BEP-20 address – IE: incorrect blockchain). 3. Any transaction that fails one of the two checks is terminated and an alert is sent to the wallet as to why this transaction could not be performed. --- # 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://docs.presend.io/why-does-all-of-this-matter/the-presend-solution.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.