# DADS state channel ![](/files/IWsizgVLnA11aAOgnwEL) With the current blockchain infrastructure, assuming each impression of an ad placement running on a blockchain leads to a large amount of gas fees and affects the maximum transaction per second of a blockchain. After intensive research, we decided to make advertising transactions on D.ADS state channel (off-chain) platform. Advertisers deposit a budget to the state channel, the system processes the off-chain transaction. Similar to publishers and users, the amount of their revenue is also calculated on the state channel until they make a withdrawal transaction, and will be calculated again from the time transactions arise. That decision was largely driven by two critical factors: scalability and cost. The system needed to be able to scale to accommodate large numbers of users relatively quickly, as well as provide speed and zero cost per ad transaction. At that point, the factors that mattered. This importance is beyond the capabilities of Ethereum and other current blockchains. --- # 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.dadsnetwork.co/dads-tech/dads-state-channel.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.