# Motivation Every 2 weeks or so, we see a fork in the bitcoin network. A good way to spot them is through RSS feed provided by Forkmonitor\[[here](https://forkmonitor.info/notifications)] or run a bunch of full nodes yourself. For the same reason, protocols like Rootstock make you wait for 100 bitcoin blocks before confirming deposit to account for forks in the network. The only other alternative available is to trust a centralized server that can confirm deposit after six block or so. Since there are no light clients available in Bitcoin, we wanted to a way to have predictive finality on transaction, such that whenever there is a fork in the bitcoin network, the chain should know it. Validity gadget is a construction based on Joachim Neu's and Ertem Nusrat Tas work at Stanford\[[link1](https://arxiv.org/abs/2009.04987)]\[[link2](https://arxiv.org/abs/2105.06075)]. --- # 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.twilight.org/validity-gadget/motivation.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.