# DIM DIM, or Decentralized Instant Messaging, is a blockchain-based chat service that can primarily meet chat users' anonymity and conversation records' immutability. End-to-end encryption is used for information transmission between users, and personal information and data are stored on the end-local user's storage, which cannot be taken by third parties, ensuring user information security. Users can do peer-to-peer instant messaging over DIM more quickly because there is no central server. --- # 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://w3-work.gitbook.io/w3space-whitepaper/dim.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.